本發(fa)明涉(she)及測量校(xiao)準設備技(ji)術領(ling)域,尤(you)其涉(she)及一種轉動振動臺及其系統(tong)。
背景技術:
目前(qian)國(guo)內(nei)外(wai)已(yi)有采用(yong)(yong)力(li)矩電機驅動(dong)的(de)(de)角振(zhen)動(dong)振(zhen)動(dong)臺(tai),測量原理(li)一(yi)般采用(yong)(yong)激光(guang)干涉法一(yi)次校準,其頻率范圍為5Hz-500Hz;但(dan)該(gai)振(zhen)動(dong)臺(tai)價(jia)格(ge)昂貴、最低測量頻率偏高。此外(wai),目前(qian)的(de)(de)角振(zhen)動(dong)臺(tai)承載力(li)一(yi)般小于(yu)10kg,僅能用(yong)(yong)于(yu)一(yi)般角振(zhen)動(dong)傳感(gan)器(qi)的(de)(de)校準,不能用(yong)(yong)于(yu)體積較大的(de)(de)地震轉(zhuan)動(dong)傳感(gan)器(qi)的(de)(de)校準和(he)小比例(li)尺結構的(de)(de)抗扭轉(zhuan)震動(dong)試驗。
因此(ci)急需一種(zhong)價格相(xiang)對低廉、最低測量頻率(lv)低、高承(cheng)載力的(de)(de)轉(zhuan)動(dong)振動(dong)臺(tai)及其系統(tong),以(yi)能夠(gou)用于校準地震(zhen)轉(zhuan)動(dong)傳感器和(he)小(xiao)比(bi)例尺結構的(de)(de)抗扭(niu)轉(zhuan)震(zhen)動(dong)試驗。
技術實現要素:
本發明的(de)(de)目(mu)的(de)(de)在(zai)于提供轉動振(zhen)(zhen)動臺,以解決現有技(ji)術中存在(zai)的(de)(de)振(zhen)(zhen)動臺的(de)(de)價格(ge)昂貴、最低測(ce)量頻率偏高和承(cheng)載(zai)力小的(de)(de)技(ji)術問題。
本發明的(de)目的(de)還在于提供轉動振(zhen)動系(xi)統,以解(jie)決現有技(ji)術中存(cun)在的(de)振(zhen)動臺的(de)價格(ge)昂貴、最(zui)低測量頻率偏高(gao)和承載力小的(de)技(ji)術問題。
基于上(shang)述(shu)(shu)第一目的(de)(de),本(ben)發明提供的(de)(de)轉(zhuan)動(dong)振動(dong)臺(tai),包括基座(zuo)、支(zhi)撐(cheng)軸和轉(zhuan)動(dong)臺(tai);所(suo)(suo)述(shu)(shu)支(zhi)撐(cheng)軸連接所(suo)(suo)述(shu)(shu)基座(zuo)和所(suo)(suo)述(shu)(shu)轉(zhuan)動(dong)臺(tai),且所(suo)(suo)述(shu)(shu)轉(zhuan)動(dong)臺(tai)能夠相對于所(suo)(suo)述(shu)(shu)基座(zuo)繞所(suo)(suo)述(shu)(shu)支(zhi)撐(cheng)軸的(de)(de)軸線轉(zhuan)動(dong);
所述(shu)基座和所述(shu)轉動臺(tai)之間設置(zhi)有(you)驅動線(xian)圈(quan)(quan)和反(fan)饋線(xian)圈(quan)(quan);所述(shu)驅動線(xian)圈(quan)(quan)和所述(shu)反(fan)饋線(xian)圈(quan)(quan)設置(zhi)在所述(shu)支撐軸(zhou)的兩側,且所述(shu)驅動線(xian)圈(quan)(quan)和所述(shu)反(fan)饋線(xian)圈(quan)(quan)分別與所述(shu)轉動臺(tai)固定連接;
所(suo)(suo)述基座固定連接有驅動(dong)(dong)磁路(lu)和反饋(kui)磁路(lu);所(suo)(suo)述驅動(dong)(dong)線(xian)圈能夠(gou)(gou)在所(suo)(suo)述驅動(dong)(dong)磁路(lu)內繞(rao)所(suo)(suo)述支(zhi)撐(cheng)軸(zhou)的軸(zhou)線(xian)往復轉動(dong)(dong),所(suo)(suo)述反饋(kui)線(xian)圈能夠(gou)(gou)在所(suo)(suo)述反饋(kui)磁路(lu)內繞(rao)所(suo)(suo)述支(zhi)撐(cheng)軸(zhou)的軸(zhou)線(xian)往復轉動(dong)(dong)。
進一步地(di),所述(shu)(shu)驅(qu)(qu)(qu)動(dong)(dong)磁(ci)路包括第(di)一驅(qu)(qu)(qu)動(dong)(dong)導(dao)磁(ci)體、第(di)二驅(qu)(qu)(qu)動(dong)(dong)導(dao)磁(ci)體和(he)驅(qu)(qu)(qu)動(dong)(dong)永磁(ci)體;所述(shu)(shu)第(di)一驅(qu)(qu)(qu)動(dong)(dong)導(dao)磁(ci)體和(he)所述(shu)(shu)第(di)二驅(qu)(qu)(qu)動(dong)(dong)導(dao)磁(ci)體沿所述(shu)(shu)支撐軸(zhou)(zhou)的軸(zhou)(zhou)向依(yi)次間隔設置,且所述(shu)(shu)第(di)二驅(qu)(qu)(qu)動(dong)(dong)導(dao)磁(ci)體與(yu)所述(shu)(shu)基(ji)座(zuo)固(gu)定連接;
所述(shu)第(di)(di)(di)(di)一(yi)驅(qu)(qu)動(dong)導(dao)磁(ci)體(ti)的(de)第(di)(di)(di)(di)一(yi)端和(he)所述(shu)第(di)(di)(di)(di)二驅(qu)(qu)動(dong)導(dao)磁(ci)體(ti)的(de)第(di)(di)(di)(di)一(yi)端分別與所述(shu)驅(qu)(qu)動(dong)線圈間隔設(she)置;所述(shu)第(di)(di)(di)(di)一(yi)驅(qu)(qu)動(dong)導(dao)磁(ci)體(ti)相(xiang)應的(de)第(di)(di)(di)(di)二端和(he)所述(shu)第(di)(di)(di)(di)二驅(qu)(qu)動(dong)導(dao)磁(ci)體(ti)相(xiang)應的(de)第(di)(di)(di)(di)二端分別與所述(shu)驅(qu)(qu)動(dong)永磁(ci)體(ti)固定連接。
進一(yi)(yi)步地,所(suo)(suo)(suo)述(shu)反饋(kui)磁路包括第(di)一(yi)(yi)反饋(kui)導磁體、第(di)二(er)(er)反饋(kui)導磁體和反饋(kui)永(yong)磁體;所(suo)(suo)(suo)述(shu)第(di)一(yi)(yi)反饋(kui)導磁體和所(suo)(suo)(suo)述(shu)第(di)二(er)(er)反饋(kui)導磁體沿所(suo)(suo)(suo)述(shu)支撐軸的軸向依次間隔設置,且所(suo)(suo)(suo)述(shu)第(di)二(er)(er)反饋(kui)導磁體與所(suo)(suo)(suo)述(shu)基座(zuo)固定(ding)連接;
所述(shu)第一反饋(kui)導磁(ci)(ci)體(ti)的(de)第一端(duan)(duan)(duan)和所述(shu)第二(er)(er)(er)反饋(kui)導磁(ci)(ci)體(ti)的(de)第一端(duan)(duan)(duan)分別(bie)與所述(shu)反饋(kui)線圈間隔設(she)置;所述(shu)第一反饋(kui)導磁(ci)(ci)體(ti)相應(ying)的(de)第二(er)(er)(er)端(duan)(duan)(duan)和所述(shu)第二(er)(er)(er)反饋(kui)導磁(ci)(ci)體(ti)相應(ying)的(de)第二(er)(er)(er)端(duan)(duan)(duan)分別(bie)與所述(shu)反饋(kui)永磁(ci)(ci)體(ti)固定連接。
進一(yi)步(bu)地(di),沿所述(shu)(shu)支撐軸(zhou)(zhou)的(de)(de)軸(zhou)(zhou)向,所述(shu)(shu)第(di)(di)一(yi)驅(qu)動(dong)導(dao)磁(ci)(ci)(ci)體和所述(shu)(shu)第(di)(di)二驅(qu)動(dong)導(dao)磁(ci)(ci)(ci)體靠(kao)近所述(shu)(shu)驅(qu)動(dong)線(xian)圈(quan)的(de)(de)一(yi)端(duan)分別設(she)置有驅(qu)動(dong)磁(ci)(ci)(ci)軛,所述(shu)(shu)第(di)(di)一(yi)反饋導(dao)磁(ci)(ci)(ci)體和所述(shu)(shu)第(di)(di)二反饋導(dao)磁(ci)(ci)(ci)體靠(kao)近所述(shu)(shu)反饋線(xian)圈(quan)的(de)(de)一(yi)端(duan)分別設(she)置有反饋磁(ci)(ci)(ci)軛;
所述(shu)第二驅(qu)(qu)動導磁體通過驅(qu)(qu)動磁路座與(yu)所述(shu)基座固定連接(jie);
所(suo)述(shu)(shu)第二反(fan)饋導磁體通過反(fan)饋磁路座與所(suo)述(shu)(shu)基(ji)座固定(ding)連接(jie)。
進(jin)一步地,沿所述(shu)支(zhi)撐軸(zhou)的(de)(de)軸(zhou)向,所述(shu)驅動線(xian)圈(quan)、所述(shu)第(di)一驅動導(dao)磁體(ti)、所述(shu)第(di)二驅動導(dao)磁體(ti)和所述(shu)驅動永磁體(ti)分別(bie)呈圓心在所述(shu)支(zhi)撐軸(zhou)的(de)(de)軸(zhou)線(xian)上的(de)(de)扇環(huan)形,所述(shu)反饋(kui)線(xian)圈(quan)、所述(shu)第(di)一反饋(kui)導(dao)磁體(ti)、所述(shu)第(di)二反饋(kui)導(dao)磁體(ti)和所述(shu)反饋(kui)永磁體(ti)分別(bie)呈圓心在所述(shu)支(zhi)撐軸(zhou)的(de)(de)軸(zhou)線(xian)上的(de)(de)扇環(huan)形。
進(jin)一步(bu)地,所(suo)述(shu)驅(qu)動(dong)線圈(quan)和(he)所(suo)述(shu)反(fan)饋(kui)線圈(quan)對稱(cheng)設置在(zai)所(suo)述(shu)支撐(cheng)軸的兩側(ce),所(suo)述(shu)驅(qu)動(dong)磁路與(yu)所(suo)述(shu)反(fan)饋(kui)磁路對稱(cheng)設置在(zai)所(suo)述(shu)支撐(cheng)軸的兩側(ce)。
進一步地,所(suo)(suo)述(shu)支(zhi)撐(cheng)軸與所(suo)(suo)述(shu)基座(zuo)固(gu)定連接,所(suo)(suo)述(shu)支(zhi)撐(cheng)軸與所(suo)(suo)述(shu)轉(zhuan)動(dong)臺之間設(she)置(zhi)有軸承;
所述(shu)支撐(cheng)軸與所述(shu)轉動臺之間(jian)設置(zhi)有(you)用于令所述(shu)轉動臺復位的(de)復位裝置(zhi);所述(shu)復位裝置(zhi)包括彈(dan)性(xing)片或者彈(dan)簧(huang)。
進一步(bu)地,所(suo)(suo)述轉動(dong)臺包括臺體和與所(suo)(suo)述臺體固(gu)定連接(jie)的兩(liang)個線(xian)圈連接(jie)件;
所(suo)述兩個線圈(quan)(quan)(quan)連接件(jian)設(she)置在所(suo)述支撐軸(zhou)的兩側,且分別與所(suo)述驅動(dong)線圈(quan)(quan)(quan)和(he)所(suo)述反饋線圈(quan)(quan)(quan)固定連接;
所(suo)述彈性片或(huo)者所(suo)述彈簧(huang)的一(yi)端(duan)固(gu)定連(lian)接(jie)所(suo)述線圈(quan)連(lian)接(jie)件(jian),另一(yi)端(duan)連(lian)接(jie)所(suo)述支撐(cheng)軸。
進(jin)一步地,所述的轉動振動臺還包括外(wai)殼;所述外(wai)殼外(wai)套在所述基座(zuo)上,且(qie)與(yu)所述基座(zuo)形(xing)成殼腔;
所述外殼設置有與所述轉動臺相應的(de)(de)凹槽,所述轉動臺的(de)(de)臺面凸出(chu)于所述外殼;
所(suo)述(shu)(shu)支撐軸、所(suo)述(shu)(shu)驅(qu)動線圈(quan)、所(suo)述(shu)(shu)反饋(kui)線圈(quan)、所(suo)述(shu)(shu)驅(qu)動磁路和所(suo)述(shu)(shu)反饋(kui)磁路均設置在所(suo)述(shu)(shu)殼腔內(nei)。
基于(yu)上述(shu)第二(er)目的(de),本(ben)發明(ming)提(ti)供的(de)轉動(dong)(dong)振動(dong)(dong)系統,包括所述(shu)的(de)轉動(dong)(dong)振動(dong)(dong)臺;
所(suo)述(shu)(shu)轉(zhuan)動(dong)(dong)振(zhen)動(dong)(dong)臺的轉(zhuan)動(dong)(dong)臺的臺面上設置(zhi)(zhi)有(you)限位(wei)槽(cao);所(suo)述(shu)(shu)外(wai)殼(ke)設置(zhi)(zhi)有(you)與所(suo)述(shu)(shu)限位(wei)槽(cao)相應的鎖緊限位(wei)裝(zhuang)(zhuang)置(zhi)(zhi);所(suo)述(shu)(shu)鎖緊限位(wei)裝(zhuang)(zhuang)置(zhi)(zhi)的鎖緊件能夠插入所(suo)述(shu)(shu)限位(wei)槽(cao)內;
所述(shu)外殼(ke)設(she)置(zhi)有與所述(shu)轉動臺相應(ying)的刻(ke)度盤。
本發明(ming)提(ti)供的(de)(de)(de)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)臺(tai)(tai)(tai),包括基(ji)座(zuo)、支(zhi)(zhi)(zhi)撐軸(zhou)(zhou)、轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)臺(tai)(tai)(tai)、驅動(dong)(dong)(dong)線圈(quan)(quan)和反饋線圈(quan)(quan),其(qi)結(jie)構簡單,便于生產加工且價格(ge)相對低(di)廉;通(tong)過支(zhi)(zhi)(zhi)撐軸(zhou)(zhou)支(zhi)(zhi)(zhi)撐連(lian)接轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)臺(tai)(tai)(tai),以(yi)提(ti)高(gao)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)臺(tai)(tai)(tai)的(de)(de)(de)承(cheng)載力,以(yi)使轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)臺(tai)(tai)(tai)能夠用于體積較大的(de)(de)(de)地(di)震(zhen)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)傳感(gan)器的(de)(de)(de)校準和小比例尺(chi)結(jie)構的(de)(de)(de)抗扭轉(zhuan)(zhuan)(zhuan)震(zhen)動(dong)(dong)(dong)試驗;通(tong)過驅動(dong)(dong)(dong)線圈(quan)(quan)在驅動(dong)(dong)(dong)磁(ci)路內(nei)繞支(zhi)(zhi)(zhi)撐軸(zhou)(zhou)的(de)(de)(de)軸(zhou)(zhou)線往(wang)復(fu)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong),以(yi)及反饋線圈(quan)(quan)在反饋磁(ci)路內(nei)繞支(zhi)(zhi)(zhi)撐軸(zhou)(zhou)的(de)(de)(de)軸(zhou)(zhou)線往(wang)復(fu)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong),以(yi)通(tong)過雙線圈(quan)(quan)提(ti)高(gao)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)臺(tai)(tai)(tai)的(de)(de)(de)阻尼比,從而拓展轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)臺(tai)(tai)(tai)的(de)(de)(de)低(di)頻特性(xing),進而降低(di)轉(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)臺(tai)(tai)(tai)的(de)(de)(de)最(zui)低(di)測量頻率。
本發(fa)明提供的轉動振(zhen)動系統,包括轉動振(zhen)動臺,具有結(jie)構簡單,便于生產(chan)加工且價(jia)格相對低(di)廉,以及具有承載力高(gao)、最低(di)測(ce)量頻率較低(di)等優(you)點(dian)。
附圖說明
為(wei)了更清(qing)楚地說明本(ben)發(fa)明具體實(shi)施(shi)方(fang)(fang)式(shi)(shi)或現有技(ji)術中(zhong)的(de)技(ji)術方(fang)(fang)案,下(xia)面將對具體實(shi)施(shi)方(fang)(fang)式(shi)(shi)或現有技(ji)術描述中(zhong)所(suo)需要(yao)使用的(de)附(fu)圖(tu)作簡單(dan)地介(jie)紹,顯而易見地,下(xia)面描述中(zhong)的(de)附(fu)圖(tu)是本(ben)發(fa)明的(de)一些實(shi)施(shi)方(fang)(fang)式(shi)(shi),對于本(ben)領域普(pu)通技(ji)術人員來講(jiang),在不付出創造性勞(lao)動的(de)前提下(xia),還(huan)可以根(gen)據這(zhe)些附(fu)圖(tu)獲得(de)其(qi)他的(de)附(fu)圖(tu)。
圖(tu)1為本發明(ming)實施(shi)例一提供(gong)的(de)轉動振動臺的(de)第一角度剖視圖(tu);
圖2為本(ben)發明實(shi)施例(li)一提(ti)供的(de)轉動(dong)振(zhen)動(dong)臺的(de)第(di)二角度結構(gou)示意圖;
圖3為本發明實施例一提供的(de)轉動(dong)(dong)振動(dong)(dong)臺的(de)驅動(dong)(dong)線圈(quan)和反饋線圈(quan)的(de)結構示意圖;
圖4為本(ben)發明實施(shi)例一提供的(de)轉動(dong)(dong)振動(dong)(dong)臺的(de)驅動(dong)(dong)永磁體(ti)和反饋(kui)永磁體(ti)的(de)結構示意圖;
圖5為本發明實施例一提供的轉動振動臺(tai)的驅動磁路和反(fan)饋磁路的結(jie)構示意圖;
圖6為(wei)本發明實施例一(yi)提供的轉(zhuan)動振動臺的驅動線(xian)圈(quan)(quan)或反饋線(xian)圈(quan)(quan)的剖(pou)視圖(圖中僅顯(xian)示(shi)驅動線(xian)圈(quan)(quan)的標號(hao));
圖7為本發(fa)明實施例一提供的(de)(de)轉動(dong)振(zhen)動(dong)臺的(de)(de)驅動(dong)磁路或反(fan)饋磁路的(de)(de)剖視圖(圖中僅顯示驅動(dong)磁路的(de)(de)標號);
圖(tu)8為本發明實施例一提供的轉動(dong)振動(dong)臺的電路連(lian)接示意圖(tu)。
圖標(biao):1-支撐軸;2-軸承;3-轉動(dong)(dong)臺;31-臺體(ti)(ti);32-線圈(quan)連接件(jian);33-限位槽(cao);5-反(fan)(fan)饋線圈(quan);6-第(di)(di)一反(fan)(fan)饋導(dao)磁(ci)(ci)體(ti)(ti);7-反(fan)(fan)饋永(yong)磁(ci)(ci)體(ti)(ti);8-驅(qu)(qu)動(dong)(dong)線圈(quan);9-第(di)(di)一驅(qu)(qu)動(dong)(dong)導(dao)磁(ci)(ci)體(ti)(ti);91-驅(qu)(qu)動(dong)(dong)磁(ci)(ci)軛;10-蓋(gai)板(ban);11-側壁;12-蓋(gai)板(ban)緊固螺釘;13-驅(qu)(qu)動(dong)(dong)永(yong)磁(ci)(ci)體(ti)(ti);14-驅(qu)(qu)動(dong)(dong)磁(ci)(ci)路(lu);15-驅(qu)(qu)動(dong)(dong)磁(ci)(ci)路(lu)座;16-基座;17-第(di)(di)二驅(qu)(qu)動(dong)(dong)導(dao)磁(ci)(ci)體(ti)(ti);19-復(fu)位裝置(zhi);20-第(di)(di)二反(fan)(fan)饋導(dao)磁(ci)(ci)體(ti)(ti);21-反(fan)(fan)饋磁(ci)(ci)路(lu)座;22-反(fan)(fan)饋磁(ci)(ci)路(lu);23-鎖緊限位裝置(zhi);24-刻度盤;101-信(xin)號源;102-加(jia)法器;103-功率(lv)放大器;104-反(fan)(fan)饋放大器;105-積(ji)分器;106-跟隨器。
具體實施方式
下面將結合(he)附圖(tu)對(dui)本發明(ming)(ming)的技(ji)術方案(an)進行清楚(chu)、完整地描述,顯然,所(suo)(suo)描述的實施(shi)(shi)例(li)(li)是(shi)本發明(ming)(ming)一部(bu)分實施(shi)(shi)例(li)(li),而不是(shi)全部(bu)的實施(shi)(shi)例(li)(li)。基于本發明(ming)(ming)中的實施(shi)(shi)例(li)(li),本領域普通技(ji)術人員(yuan)在沒有(you)做出創造性勞動前(qian)提(ti)下所(suo)(suo)獲得(de)的所(suo)(suo)有(you)其他(ta)實施(shi)(shi)例(li)(li),都屬于本發明(ming)(ming)保護(hu)的范圍。
在本(ben)發(fa)明的描述中,需要說明的是,術語“中心(xin)”、“上”、“下”、“左(zuo)”、“右”、“豎直”、“水平”、“內”、“外”等指(zhi)示(shi)的方(fang)(fang)(fang)位(wei)或(huo)位(wei)置(zhi)(zhi)(zhi)關(guan)系(xi)為基(ji)于(yu)附(fu)圖所(suo)示(shi)的方(fang)(fang)(fang)位(wei)或(huo)位(wei)置(zhi)(zhi)(zhi)關(guan)系(xi),僅是為了(le)便于(yu)描述本(ben)發(fa)明和簡化描述,而不是指(zhi)示(shi)或(huo)暗示(shi)所(suo)指(zhi)的裝置(zhi)(zhi)(zhi)或(huo)元件必須具(ju)有特(te)定的方(fang)(fang)(fang)位(wei)、以特(te)定的方(fang)(fang)(fang)位(wei)構(gou)造(zao)和操作,因此不能理解(jie)為對本(ben)發(fa)明的限(xian)制。此外,術語“第(di)一”、“第(di)二”、“第(di)三”僅用于(yu)描述目的,而不能理解(jie)為指(zhi)示(shi)或(huo)暗示(shi)相對重(zhong)要性。
在(zai)本(ben)發明的描述中,需要說明的是(shi),除(chu)非另有明確的規定(ding)和(he)限定(ding),術(shu)語“安(an)裝”、“相(xiang)連(lian)(lian)”、“連(lian)(lian)接(jie)(jie)”應做(zuo)廣義理解(jie),例(li)如(ru),可(ke)(ke)以是(shi)固定(ding)連(lian)(lian)接(jie)(jie),也(ye)可(ke)(ke)以是(shi)可(ke)(ke)拆卸連(lian)(lian)接(jie)(jie),或一體地連(lian)(lian)接(jie)(jie);可(ke)(ke)以是(shi)機械連(lian)(lian)接(jie)(jie),也(ye)可(ke)(ke)以是(shi)電連(lian)(lian)接(jie)(jie);可(ke)(ke)以是(shi)直(zhi)接(jie)(jie)相(xiang)連(lian)(lian),也(ye)可(ke)(ke)以通(tong)(tong)過中間媒介(jie)間接(jie)(jie)相(xiang)連(lian)(lian),可(ke)(ke)以是(shi)兩個元件(jian)內部的連(lian)(lian)通(tong)(tong)。對于本(ben)領域的普通(tong)(tong)技術(shu)人員(yuan)而言,可(ke)(ke)以具體情(qing)況理解(jie)上述術(shu)語在(zai)本(ben)發明中的具體含義。
實施例一
參見圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)1-圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)8所示(shi),本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)了(le)一種轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai);圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)1為(wei)本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)的(de)(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai)的(de)(de)第(di)(di)一角(jiao)度(du)剖(pou)視(shi)圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)中(zhong)(zhong)未顯示(shi)剖(pou)面線(xian));圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)2為(wei)本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)的(de)(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai)的(de)(de)第(di)(di)二角(jiao)度(du)結構示(shi)意(yi)圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu);圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)3為(wei)本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)的(de)(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai)的(de)(de)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)線(xian)圈(quan)和(he)反(fan)(fan)饋(kui)線(xian)圈(quan)的(de)(de)結構示(shi)意(yi)圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu);圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)4為(wei)本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)的(de)(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai)的(de)(de)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)永(yong)磁體(ti)和(he)反(fan)(fan)饋(kui)永(yong)磁體(ti)的(de)(de)結構示(shi)意(yi)圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu);圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)5為(wei)本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)的(de)(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai)的(de)(de)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)磁路和(he)反(fan)(fan)饋(kui)磁路的(de)(de)結構示(shi)意(yi)圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu);圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)6為(wei)本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)的(de)(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai)的(de)(de)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)線(xian)圈(quan)或(huo)反(fan)(fan)饋(kui)線(xian)圈(quan)的(de)(de)剖(pou)視(shi)圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)中(zhong)(zhong)僅顯示(shi)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)線(xian)圈(quan)的(de)(de)標號);圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)7為(wei)本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)的(de)(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai)的(de)(de)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)磁路或(huo)反(fan)(fan)饋(kui)磁路的(de)(de)剖(pou)視(shi)圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)中(zhong)(zhong)僅顯示(shi)驅(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)磁路的(de)(de)標號);圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)8為(wei)本(ben)實施(shi)(shi)(shi)例(li)(li)提供(gong)(gong)(gong)的(de)(de)轉(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)臺(tai)的(de)(de)電路連接示(shi)意(yi)圖(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)(tu)。
參(can)見圖1-圖7所示,本(ben)實施例提供(gong)的(de)(de)轉動(dong)(dong)(dong)(dong)(dong)振動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai),包括基(ji)(ji)(ji)座(zuo)16、支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1和轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3;支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1連(lian)(lian)(lian)(lian)(lian)接基(ji)(ji)(ji)座(zuo)16和轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3,且轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3能夠(gou)相(xiang)對(dui)于基(ji)(ji)(ji)座(zuo)16繞(rao)支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1的(de)(de)軸(zhou)(zhou)(zhou)(zhou)線(xian)(xian)轉動(dong)(dong)(dong)(dong)(dong)。可選地(di),轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3與支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1固(gu)定連(lian)(lian)(lian)(lian)(lian)接,支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1與基(ji)(ji)(ji)座(zuo)16轉動(dong)(dong)(dong)(dong)(dong)連(lian)(lian)(lian)(lian)(lian)接,以(yi)使(shi)轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3能夠(gou)相(xiang)對(dui)于基(ji)(ji)(ji)座(zuo)16轉動(dong)(dong)(dong)(dong)(dong)。可選地(di),轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3與支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1轉動(dong)(dong)(dong)(dong)(dong)連(lian)(lian)(lian)(lian)(lian)接,支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1與基(ji)(ji)(ji)座(zuo)16固(gu)定連(lian)(lian)(lian)(lian)(lian)接,以(yi)使(shi)轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3能夠(gou)相(xiang)對(dui)于基(ji)(ji)(ji)座(zuo)16轉動(dong)(dong)(dong)(dong)(dong);進(jin)一步地(di),支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1與轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3之(zhi)間設置有軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)2;也(ye)即轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3通(tong)過(guo)軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)2能夠(gou)相(xiang)對(dui)于支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1繞(rao)支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1的(de)(de)軸(zhou)(zhou)(zhou)(zhou)線(xian)(xian)轉動(dong)(dong)(dong)(dong)(dong);通(tong)過(guo)設置軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)2,以(yi)進(jin)一步提高轉動(dong)(dong)(dong)(dong)(dong)振動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)的(de)(de)承(cheng)(cheng)(cheng)載力。可選的(de)(de),軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)2為(wei)大軸(zhou)(zhou)(zhou)(zhou)向荷(he)載的(de)(de)精(jing)密軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng),支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1為(wei)大軸(zhou)(zhou)(zhou)(zhou)向荷(he)載的(de)(de)支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou);通(tong)過(guo)支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1與軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)2配(pei)合,以(yi)提高轉動(dong)(dong)(dong)(dong)(dong)振動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)的(de)(de)承(cheng)(cheng)(cheng)載力。優選地(di),支(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)撐(cheng)(cheng)軸(zhou)(zhou)(zhou)(zhou)1的(de)(de)軸(zhou)(zhou)(zhou)(zhou)線(xian)(xian)與轉動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)3的(de)(de)軸(zhou)(zhou)(zhou)(zhou)線(xian)(xian)共線(xian)(xian),以(yi)提高轉動(dong)(dong)(dong)(dong)(dong)振動(dong)(dong)(dong)(dong)(dong)臺(tai)(tai)的(de)(de)測量精(jing)度。
基(ji)座16和(he)(he)(he)轉(zhuan)動臺3之(zhi)間(jian)設置有驅(qu)動線圈(quan)8和(he)(he)(he)反(fan)(fan)饋線圈(quan)5;驅(qu)動線圈(quan)8和(he)(he)(he)反(fan)(fan)饋線圈(quan)5設置在支撐軸1的兩(liang)側,且驅(qu)動線圈(quan)8和(he)(he)(he)反(fan)(fan)饋線圈(quan)5分別與轉(zhuan)動臺3固定連(lian)接(jie)。
基座16固定連接有(you)驅動磁(ci)路(lu)(lu)14和反(fan)饋(kui)磁(ci)路(lu)(lu)22;驅動線(xian)圈(quan)8能(neng)夠(gou)(gou)在驅動磁(ci)路(lu)(lu)14內繞支(zhi)(zhi)撐(cheng)軸(zhou)1的軸(zhou)線(xian)往復轉(zhuan)動,反(fan)饋(kui)線(xian)圈(quan)5能(neng)夠(gou)(gou)在反(fan)饋(kui)磁(ci)路(lu)(lu)22內繞支(zhi)(zhi)撐(cheng)軸(zhou)1的軸(zhou)線(xian)往復轉(zhuan)動。可選地,驅動磁(ci)路(lu)(lu)14和反(fan)饋(kui)磁(ci)路(lu)(lu)22設置在支(zhi)(zhi)撐(cheng)軸(zhou)1的兩側(ce),以使驅動線(xian)圈(quan)8、反(fan)饋(kui)線(xian)圈(quan)5能(neng)夠(gou)(gou)更(geng)好在驅動磁(ci)路(lu)(lu)14、反(fan)饋(kui)磁(ci)路(lu)(lu)22內轉(zhuan)動。
本實施(shi)例中轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)臺(tai),包括基座16、支(zhi)撐(cheng)軸(zhou)(zhou)1、轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)臺(tai)3、驅動(dong)(dong)(dong)(dong)(dong)線(xian)(xian)圈(quan)8和(he)反(fan)饋(kui)線(xian)(xian)圈(quan)5,其結(jie)構簡單(dan),便于生(sheng)產加(jia)工且價格相對低(di)廉;通(tong)過(guo)(guo)支(zhi)撐(cheng)軸(zhou)(zhou)1支(zhi)撐(cheng)連接(jie)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)臺(tai)3,以(yi)提(ti)高(gao)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)臺(tai)的承(cheng)載(zai)力,以(yi)使轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)臺(tai)能夠用于體(ti)積較大的地震轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)傳(chuan)感器的校準和(he)小比(bi)例尺(chi)結(jie)構的抗扭(niu)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)震動(dong)(dong)(dong)(dong)(dong)試驗;通(tong)過(guo)(guo)驅動(dong)(dong)(dong)(dong)(dong)線(xian)(xian)圈(quan)8在(zai)驅動(dong)(dong)(dong)(dong)(dong)磁(ci)(ci)路14內(nei)(nei)繞支(zhi)撐(cheng)軸(zhou)(zhou)1的軸(zhou)(zhou)線(xian)(xian)往復轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong),以(yi)及反(fan)饋(kui)線(xian)(xian)圈(quan)5在(zai)反(fan)饋(kui)磁(ci)(ci)路22內(nei)(nei)繞支(zhi)撐(cheng)軸(zhou)(zhou)1的軸(zhou)(zhou)線(xian)(xian)往復轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong),以(yi)通(tong)過(guo)(guo)雙線(xian)(xian)圈(quan)提(ti)高(gao)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)臺(tai)的阻(zu)尼比(bi),從而(er)拓(tuo)展轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)臺(tai)的低(di)頻特性(xing),進而(er)降低(di)轉(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)振(zhen)動(dong)(dong)(dong)(dong)(dong)臺(tai)的最低(di)測量頻率。
本實(shi)施例的(de)可選方案中,驅(qu)(qu)動磁(ci)(ci)(ci)(ci)路14包括第一(yi)驅(qu)(qu)動導磁(ci)(ci)(ci)(ci)體(ti)9、第二驅(qu)(qu)動導磁(ci)(ci)(ci)(ci)體(ti)17和(he)驅(qu)(qu)動永磁(ci)(ci)(ci)(ci)體(ti)13;第一(yi)驅(qu)(qu)動導磁(ci)(ci)(ci)(ci)體(ti)9和(he)第二驅(qu)(qu)動導磁(ci)(ci)(ci)(ci)體(ti)17沿支(zhi)撐軸1的(de)軸向依(yi)次間隔設置,且第二驅(qu)(qu)動導磁(ci)(ci)(ci)(ci)體(ti)17與基座16固(gu)定連接。
第(di)(di)(di)一(yi)(yi)驅(qu)(qu)(qu)動(dong)導(dao)磁(ci)體9的(de)(de)第(di)(di)(di)一(yi)(yi)端(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)二驅(qu)(qu)(qu)動(dong)導(dao)磁(ci)體17的(de)(de)第(di)(di)(di)一(yi)(yi)端(duan)(duan)(duan)(duan)分別與(yu)驅(qu)(qu)(qu)動(dong)線(xian)圈(quan)8間隔設置,也即驅(qu)(qu)(qu)動(dong)線(xian)圈(quan)8在(zai)第(di)(di)(di)一(yi)(yi)驅(qu)(qu)(qu)動(dong)導(dao)磁(ci)體9的(de)(de)第(di)(di)(di)一(yi)(yi)端(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)二驅(qu)(qu)(qu)動(dong)導(dao)磁(ci)體17的(de)(de)第(di)(di)(di)一(yi)(yi)端(duan)(duan)(duan)(duan)之間形(xing)成的(de)(de)磁(ci)間隙中繞支撐軸1的(de)(de)軸線(xian)往復轉(zhuan)動(dong);第(di)(di)(di)一(yi)(yi)驅(qu)(qu)(qu)動(dong)導(dao)磁(ci)體9相應的(de)(de)第(di)(di)(di)二端(duan)(duan)(duan)(duan)和(he)第(di)(di)(di)二驅(qu)(qu)(qu)動(dong)導(dao)磁(ci)體17相應的(de)(de)第(di)(di)(di)二端(duan)(duan)(duan)(duan)分別與(yu)驅(qu)(qu)(qu)動(dong)永磁(ci)體13固定(ding)連接(jie)。通過第(di)(di)(di)一(yi)(yi)驅(qu)(qu)(qu)動(dong)導(dao)磁(ci)體9、第(di)(di)(di)二驅(qu)(qu)(qu)動(dong)導(dao)磁(ci)體17和(he)驅(qu)(qu)(qu)動(dong)永磁(ci)體13,以增(zeng)加驅(qu)(qu)(qu)動(dong)線(xian)圈(quan)8轉(zhuan)動(dong)的(de)(de)測量(liang)量(liang)程,進而提高轉(zhuan)動(dong)振(zhen)動(dong)臺測量(liang)角位移的(de)(de)量(liang)程。
本(ben)實施例的可選方案(an)中,反饋(kui)磁(ci)路(lu)22包括第(di)(di)一(yi)反饋(kui)導(dao)磁(ci)體(ti)6、第(di)(di)二反饋(kui)導(dao)磁(ci)體(ti)20和反饋(kui)永磁(ci)體(ti)7;第(di)(di)一(yi)反饋(kui)導(dao)磁(ci)體(ti)6和第(di)(di)二反饋(kui)導(dao)磁(ci)體(ti)20沿支撐軸1的軸向(xiang)依次(ci)間隔設置,且第(di)(di)二反饋(kui)導(dao)磁(ci)體(ti)20與(yu)基(ji)座16固定連接(jie)。
第(di)(di)(di)一(yi)反(fan)(fan)饋(kui)(kui)導(dao)(dao)(dao)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)6的(de)(de)(de)第(di)(di)(di)一(yi)端(duan)(duan)和(he)第(di)(di)(di)二(er)反(fan)(fan)饋(kui)(kui)導(dao)(dao)(dao)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)20的(de)(de)(de)第(di)(di)(di)一(yi)端(duan)(duan)分別(bie)與反(fan)(fan)饋(kui)(kui)線(xian)圈(quan)(quan)5間(jian)(jian)(jian)隔設置,也(ye)即反(fan)(fan)饋(kui)(kui)線(xian)圈(quan)(quan)5在第(di)(di)(di)一(yi)反(fan)(fan)饋(kui)(kui)導(dao)(dao)(dao)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)6的(de)(de)(de)第(di)(di)(di)一(yi)端(duan)(duan)和(he)第(di)(di)(di)二(er)反(fan)(fan)饋(kui)(kui)導(dao)(dao)(dao)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)20的(de)(de)(de)第(di)(di)(di)一(yi)端(duan)(duan)之間(jian)(jian)(jian)形成(cheng)的(de)(de)(de)磁(ci)(ci)間(jian)(jian)(jian)隙中繞支撐軸(zhou)1的(de)(de)(de)軸(zhou)線(xian)往(wang)復轉動(dong);第(di)(di)(di)一(yi)反(fan)(fan)饋(kui)(kui)導(dao)(dao)(dao)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)6相應的(de)(de)(de)第(di)(di)(di)二(er)端(duan)(duan)和(he)第(di)(di)(di)二(er)反(fan)(fan)饋(kui)(kui)導(dao)(dao)(dao)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)20相應的(de)(de)(de)第(di)(di)(di)二(er)端(duan)(duan)分別(bie)與反(fan)(fan)饋(kui)(kui)永(yong)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)7固定連接(jie)。通過第(di)(di)(di)一(yi)反(fan)(fan)饋(kui)(kui)導(dao)(dao)(dao)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)6、第(di)(di)(di)二(er)反(fan)(fan)饋(kui)(kui)導(dao)(dao)(dao)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)20和(he)反(fan)(fan)饋(kui)(kui)永(yong)磁(ci)(ci)體(ti)(ti)(ti)(ti)(ti)7,以(yi)增(zeng)加反(fan)(fan)饋(kui)(kui)線(xian)圈(quan)(quan)5轉動(dong)的(de)(de)(de)測(ce)量(liang)量(liang)程(cheng),進而提高轉動(dong)振動(dong)臺測(ce)量(liang)角位移的(de)(de)(de)量(liang)程(cheng)。
本(ben)實施例的(de)可選(xuan)方案中,沿支撐軸1的(de)軸向,第(di)(di)一(yi)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)導(dao)(dao)磁體(ti)(ti)(ti)9和(he)第(di)(di)二驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)導(dao)(dao)磁體(ti)(ti)(ti)17靠(kao)近(jin)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)線(xian)(xian)圈8的(de)一(yi)端分別(bie)設置有(you)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁軛(e)91,驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁軛(e)91凸出于第(di)(di)一(yi)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)導(dao)(dao)磁體(ti)(ti)(ti)9或第(di)(di)二驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)導(dao)(dao)磁體(ti)(ti)(ti)17的(de)表面,參見圖(tu)7所示(shi);也即,驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)線(xian)(xian)圈8在(zai)(zai)第(di)(di)一(yi)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)導(dao)(dao)磁體(ti)(ti)(ti)9的(de)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁軛(e)91和(he)第(di)(di)二驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)導(dao)(dao)磁體(ti)(ti)(ti)17的(de)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁軛(e)91之間(jian)(jian)形成的(de)磁間(jian)(jian)隙中繞支撐軸1的(de)軸線(xian)(xian)往復轉動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。通過驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁軛(e)91,以(yi)增強(qiang)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)永磁體(ti)(ti)(ti)13在(zai)(zai)第(di)(di)一(yi)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)導(dao)(dao)磁體(ti)(ti)(ti)9和(he)第(di)(di)二驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)導(dao)(dao)磁體(ti)(ti)(ti)17之間(jian)(jian)的(de)磁間(jian)(jian)隙的(de)磁力(li)線(xian)(xian),以(yi)使(shi)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)線(xian)(xian)圈8在(zai)(zai)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁路(lu)14的(de)磁縫隙中運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)切(qie)割磁力(li)線(xian)(xian)產(chan)生較強(qiang)的(de)感應電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)勢。
可(ke)選地,沿支(zhi)撐軸(zhou)(zhou)1的(de)(de)軸(zhou)(zhou)向,第(di)一反(fan)(fan)饋(kui)(kui)(kui)導磁(ci)(ci)(ci)(ci)體(ti)6和第(di)二(er)反(fan)(fan)饋(kui)(kui)(kui)導磁(ci)(ci)(ci)(ci)體(ti)20靠近反(fan)(fan)饋(kui)(kui)(kui)線圈5的(de)(de)一端分(fen)別設置有反(fan)(fan)饋(kui)(kui)(kui)磁(ci)(ci)(ci)(ci)軛(e)(圖中(zhong)未標注),反(fan)(fan)饋(kui)(kui)(kui)磁(ci)(ci)(ci)(ci)軛(e)凸出于第(di)一反(fan)(fan)饋(kui)(kui)(kui)導磁(ci)(ci)(ci)(ci)體(ti)6或第(di)二(er)反(fan)(fan)饋(kui)(kui)(kui)導磁(ci)(ci)(ci)(ci)體(ti)20的(de)(de)表(biao)面;也(ye)即,反(fan)(fan)饋(kui)(kui)(kui)線圈5在第(di)一反(fan)(fan)饋(kui)(kui)(kui)導磁(ci)(ci)(ci)(ci)體(ti)6的(de)(de)反(fan)(fan)饋(kui)(kui)(kui)磁(ci)(ci)(ci)(ci)軛(e)和第(di)二(er)反(fan)(fan)饋(kui)(kui)(kui)導磁(ci)(ci)(ci)(ci)體(ti)20的(de)(de)反(fan)(fan)饋(kui)(kui)(kui)磁(ci)(ci)(ci)(ci)軛(e)之間(jian)(jian)形成的(de)(de)磁(ci)(ci)(ci)(ci)間(jian)(jian)隙中(zhong)繞支(zhi)撐軸(zhou)(zhou)1的(de)(de)軸(zhou)(zhou)線往復轉動(dong)。通過反(fan)(fan)饋(kui)(kui)(kui)磁(ci)(ci)(ci)(ci)軛(e),以增強反(fan)(fan)饋(kui)(kui)(kui)永磁(ci)(ci)(ci)(ci)體(ti)7在第(di)一反(fan)(fan)饋(kui)(kui)(kui)導磁(ci)(ci)(ci)(ci)體(ti)6和第(di)二(er)反(fan)(fan)饋(kui)(kui)(kui)導磁(ci)(ci)(ci)(ci)體(ti)20之間(jian)(jian)的(de)(de)磁(ci)(ci)(ci)(ci)間(jian)(jian)隙的(de)(de)磁(ci)(ci)(ci)(ci)力線,以使(shi)反(fan)(fan)饋(kui)(kui)(kui)線圈5在反(fan)(fan)饋(kui)(kui)(kui)磁(ci)(ci)(ci)(ci)路22的(de)(de)磁(ci)(ci)(ci)(ci)縫隙中(zhong)運(yun)動(dong)切(qie)割磁(ci)(ci)(ci)(ci)力線產生較強的(de)(de)感應(ying)電(dian)動(dong)勢。
可(ke)選地,第二驅(qu)(qu)動(dong)(dong)導(dao)(dao)磁體17通(tong)過驅(qu)(qu)動(dong)(dong)磁路(lu)(lu)座(zuo)(zuo)(zuo)15與(yu)基座(zuo)(zuo)(zuo)16固定連(lian)接;通(tong)過驅(qu)(qu)動(dong)(dong)磁路(lu)(lu)座(zuo)(zuo)(zuo)15,以(yi)將第二驅(qu)(qu)動(dong)(dong)導(dao)(dao)磁體17牢固的固定在(zai)基座(zuo)(zuo)(zuo)16上,進而將驅(qu)(qu)動(dong)(dong)磁路(lu)(lu)14牢固的固定在(zai)基座(zuo)(zuo)(zuo)16上;此外,通(tong)過調(diao)節驅(qu)(qu)動(dong)(dong)磁路(lu)(lu)座(zuo)(zuo)(zuo)15的高度,以(yi)使(shi)驅(qu)(qu)動(dong)(dong)磁路(lu)(lu)14更(geng)好地與(yu)驅(qu)(qu)動(dong)(dong)線圈8配(pei)合。
可選地,第二(er)反(fan)(fan)饋(kui)導(dao)磁(ci)(ci)體(ti)20通(tong)(tong)過反(fan)(fan)饋(kui)磁(ci)(ci)路座21與基(ji)(ji)座16固(gu)(gu)(gu)定(ding)連接(jie)。通(tong)(tong)過反(fan)(fan)饋(kui)磁(ci)(ci)路座21,以將(jiang)第二(er)反(fan)(fan)饋(kui)導(dao)磁(ci)(ci)體(ti)20牢(lao)(lao)固(gu)(gu)(gu)的(de)固(gu)(gu)(gu)定(ding)在基(ji)(ji)座16上,進而將(jiang)反(fan)(fan)饋(kui)磁(ci)(ci)路22牢(lao)(lao)固(gu)(gu)(gu)的(de)固(gu)(gu)(gu)定(ding)在基(ji)(ji)座16上;此外,通(tong)(tong)過調(diao)節反(fan)(fan)饋(kui)磁(ci)(ci)路座21的(de)高度,以使反(fan)(fan)饋(kui)磁(ci)(ci)路22更好地與反(fan)(fan)饋(kui)線圈5配合。
本實施(shi)例的(de)可選方案中,沿支(zhi)撐軸1的(de)軸向,驅(qu)動線(xian)(xian)圈(quan)8、第(di)一(yi)驅(qu)動導(dao)(dao)磁(ci)(ci)(ci)體(ti)9、第(di)二(er)(er)驅(qu)動導(dao)(dao)磁(ci)(ci)(ci)體(ti)17和驅(qu)動永(yong)磁(ci)(ci)(ci)體(ti)13分(fen)別呈(cheng)圓心在(zai)(zai)支(zhi)撐軸1的(de)軸線(xian)(xian)上的(de)扇環形;以(yi)增加驅(qu)動線(xian)(xian)圈(quan)8轉(zhuan)動的(de)測(ce)(ce)量(liang)量(liang)程(cheng),進(jin)而提高轉(zhuan)動振動臺(tai)測(ce)(ce)量(liang)角位移(yi)(yi)的(de)量(liang)程(cheng)。沿支(zhi)撐軸1的(de)軸向,反(fan)饋線(xian)(xian)圈(quan)5、第(di)一(yi)反(fan)饋導(dao)(dao)磁(ci)(ci)(ci)體(ti)6、第(di)二(er)(er)反(fan)饋導(dao)(dao)磁(ci)(ci)(ci)體(ti)20和反(fan)饋永(yong)磁(ci)(ci)(ci)體(ti)7分(fen)別呈(cheng)圓心在(zai)(zai)支(zhi)撐軸1的(de)軸線(xian)(xian)上的(de)扇環形;以(yi)增加反(fan)饋線(xian)(xian)圈(quan)5轉(zhuan)動的(de)測(ce)(ce)量(liang)量(liang)程(cheng),進(jin)而提高轉(zhuan)動振動臺(tai)測(ce)(ce)量(liang)角位移(yi)(yi)的(de)量(liang)程(cheng)。
可選地,第一(yi)(yi)驅(qu)動(dong)導(dao)(dao)磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)9、第二驅(qu)動(dong)導(dao)(dao)磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)17和驅(qu)動(dong)永磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)13的(de)圓心角(jiao)相(xiang)(xiang)同;第一(yi)(yi)反(fan)饋(kui)(kui)(kui)導(dao)(dao)磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)6、第二反(fan)饋(kui)(kui)(kui)導(dao)(dao)磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)20和反(fan)饋(kui)(kui)(kui)永磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)7的(de)圓心角(jiao)相(xiang)(xiang)同。沿支(zhi)撐軸1的(de)軸向,第一(yi)(yi)驅(qu)動(dong)導(dao)(dao)磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)9和第二驅(qu)動(dong)導(dao)(dao)磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)17的(de)截(jie)面(mian)面(mian)積相(xiang)(xiang)同,第一(yi)(yi)反(fan)饋(kui)(kui)(kui)導(dao)(dao)磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)6和第二反(fan)饋(kui)(kui)(kui)導(dao)(dao)磁(ci)(ci)(ci)(ci)體(ti)(ti)(ti)20的(de)截(jie)面(mian)面(mian)積相(xiang)(xiang)同。
本實施例(li)的(de)可(ke)選方案中,驅動(dong)(dong)線(xian)(xian)圈8和反饋線(xian)(xian)圈5對(dui)稱設置在支(zhi)撐(cheng)軸(zhou)(zhou)1的(de)兩側(ce)(ce),驅動(dong)(dong)磁路14與反饋磁路22對(dui)稱設置在支(zhi)撐(cheng)軸(zhou)(zhou)1的(de)兩側(ce)(ce),以簡化轉動(dong)(dong)振(zhen)動(dong)(dong)臺(tai)的(de)結構,便于計算轉動(dong)(dong)振(zhen)動(dong)(dong)臺(tai)的(de)測(ce)量(liang)角度(du),還可(ke)以提高(gao)轉動(dong)(dong)振(zhen)動(dong)(dong)臺(tai)的(de)測(ce)量(liang)精度(du)。
本實施例(li)的(de)(de)(de)可選方案中,支撐軸1與轉(zhuan)動(dong)臺(tai)(tai)3之間設(she)置有用于令轉(zhuan)動(dong)臺(tai)(tai)3復(fu)(fu)位(wei)的(de)(de)(de)復(fu)(fu)位(wei)裝置19;復(fu)(fu)位(wei)裝置19包括(kuo)彈(dan)(dan)性片或者彈(dan)(dan)簧。通過復(fu)(fu)位(wei)裝置19,以在完成對校準地震轉(zhuan)動(dong)傳感器(qi)、小比例(li)尺結構的(de)(de)(de)抗(kang)扭轉(zhuan)震動(dong)等(deng)試驗后,轉(zhuan)動(dong)振動(dong)臺(tai)(tai)的(de)(de)(de)轉(zhuan)動(dong)臺(tai)(tai)3能(neng)(neng)夠自動(dong)復(fu)(fu)位(wei),以提高轉(zhuan)動(dong)振動(dong)臺(tai)(tai)的(de)(de)(de)自動(dong)化性能(neng)(neng)。
本實施例的可選方案(an)中(zhong),轉動臺3包括臺體31和與臺體31固定連接的兩個線圈連接件32。
兩(liang)個線(xian)圈(quan)(quan)(quan)(quan)(quan)連(lian)接(jie)件32設置(zhi)在(zai)支(zhi)撐(cheng)軸1的兩(liang)側(ce),且分別(bie)與驅(qu)動(dong)(dong)線(xian)圈(quan)(quan)(quan)(quan)(quan)8和(he)(he)反饋線(xian)圈(quan)(quan)(quan)(quan)(quan)5固定連(lian)接(jie);可選地(di),兩(liang)個線(xian)圈(quan)(quan)(quan)(quan)(quan)連(lian)接(jie)件32對稱(cheng)設置(zhi)在(zai)支(zhi)撐(cheng)軸1的兩(liang)側(ce)。通過(guo)線(xian)圈(quan)(quan)(quan)(quan)(quan)連(lian)接(jie)件32以(yi)(yi)將驅(qu)動(dong)(dong)線(xian)圈(quan)(quan)(quan)(quan)(quan)8和(he)(he)反饋線(xian)圈(quan)(quan)(quan)(quan)(quan)5固定連(lian)接(jie)在(zai)臺(tai)體(ti)31上,以(yi)(yi)使(shi)驅(qu)動(dong)(dong)線(xian)圈(quan)(quan)(quan)(quan)(quan)8和(he)(he)反饋線(xian)圈(quan)(quan)(quan)(quan)(quan)5隨臺(tai)體(ti)31的轉(zhuan)動(dong)(dong)而(er)轉(zhuan)動(dong)(dong);此外,通過(guo)調節線(xian)圈(quan)(quan)(quan)(quan)(quan)連(lian)接(jie)件32的高(gao)度,以(yi)(yi)使(shi)驅(qu)動(dong)(dong)磁路14更好(hao)地(di)與驅(qu)動(dong)(dong)線(xian)圈(quan)(quan)(quan)(quan)(quan)8配合,反饋磁路22更好(hao)地(di)與反饋線(xian)圈(quan)(quan)(quan)(quan)(quan)5配合。
彈(dan)(dan)性(xing)片或者(zhe)(zhe)彈(dan)(dan)簧(huang)的一(yi)端(duan)(duan)固(gu)定連接(jie)線圈(quan)連接(jie)件32,另一(yi)端(duan)(duan)連接(jie)支(zhi)撐軸(zhou)1。可(ke)選地,彈(dan)(dan)性(xing)片或者(zhe)(zhe)彈(dan)(dan)簧(huang)的數量(liang)為兩(liang)組,兩(liang)組彈(dan)(dan)性(xing)片或者(zhe)(zhe)彈(dan)(dan)簧(huang)對稱(cheng)設置在(zai)支(zhi)撐軸(zhou)1的兩(liang)側;每(mei)(mei)組彈(dan)(dan)性(xing)片包括(kuo)一(yi)個(ge)(ge)或者(zhe)(zhe)多(duo)個(ge)(ge)彈(dan)(dan)性(xing)片,或者(zhe)(zhe)每(mei)(mei)組彈(dan)(dan)簧(huang)包括(kuo)一(yi)個(ge)(ge)或者(zhe)(zhe)多(duo)個(ge)(ge)彈(dan)(dan)簧(huang)。
本實施例的(de)可(ke)選方案中(zhong),轉(zhuan)(zhuan)動(dong)(dong)(dong)振動(dong)(dong)(dong)臺還包括外(wai)殼(ke)(圖(tu)中(zhong)未(wei)標注);外(wai)殼(ke)外(wai)套在基座16上,且與(yu)基座16形成殼(ke)腔;外(wai)殼(ke)設(she)置有與(yu)轉(zhuan)(zhuan)動(dong)(dong)(dong)臺3相應的(de)凹槽(cao)(圖(tu)中(zhong)未(wei)標注),轉(zhuan)(zhuan)動(dong)(dong)(dong)臺3的(de)臺面凸出于(yu)外(wai)殼(ke);支(zhi)撐(cheng)軸1、驅動(dong)(dong)(dong)線(xian)圈(quan)8、反饋線(xian)圈(quan)5、驅動(dong)(dong)(dong)磁路(lu)14和反饋磁路(lu)22均設(she)置在殼(ke)腔內。通過令轉(zhuan)(zhuan)動(dong)(dong)(dong)臺3的(de)臺面凸出于(yu)外(wai)殼(ke),以(yi)便(bian)地震轉(zhuan)(zhuan)動(dong)(dong)(dong)傳感器(qi)等需要檢測、校準的(de)儀器(qi)設(she)備(bei)與(yu)轉(zhuan)(zhuan)動(dong)(dong)(dong)臺3的(de)臺面固定,并隨(sui)轉(zhuan)(zhuan)動(dong)(dong)(dong)臺3相對(dui)于(yu)基座16繞支(zhi)撐(cheng)軸1的(de)軸線(xian)轉(zhuan)(zhuan)動(dong)(dong)(dong)。
進一步地,外殼(ke)包括蓋板10和側(ce)壁(bi)11;側(ce)壁(bi)11固定連接(jie)蓋板10和基(ji)座16,且蓋板10、側(ce)壁(bi)11和基(ji)座16形成殼(ke)腔;支撐軸1、驅(qu)動線(xian)圈8、反饋線(xian)圈5、驅(qu)動磁路14和反饋磁路22均設置在殼(ke)腔內;蓋板10設置有與轉動臺(tai)3相應(ying)的凹槽,轉動臺(tai)3的臺(tai)面(mian)凸出于蓋板10。
可選(xuan)地(di),側(ce)壁(bi)11的橫截面呈圓形(xing)。可選(xuan)地(di),蓋(gai)(gai)板10通過蓋(gai)(gai)板緊固螺釘12與側(ce)壁(bi)11固定連接。
可選(xuan)地,轉(zhuan)動臺(tai)3包括臺(tai)體31和與臺(tai)體31固定連(lian)(lian)接的兩(liang)個線圈連(lian)(lian)接件(jian)32。蓋板10的凹槽與臺(tai)體31相應,且臺(tai)體31的臺(tai)面(mian)凸出于蓋板10。
現有公式(shi)(shi):角(jiao)(jiao)加速度(du)(du)(du)式(shi)(shi)中θ為(wei)角(jiao)(jiao)位(wei)移(yi)(yi),f為(wei)頻(pin)(pin)率;由該公式(shi)(shi)可(ke)(ke)知,測量(liang)(liang)角(jiao)(jiao)位(wei)移(yi)(yi)的(de)量(liang)(liang)程較(jiao)(jiao)小時,在(zai)(zai)超(chao)低頻(pin)(pin)時角(jiao)(jiao)加速度(du)(du)(du)的(de)幅值更小,因此給地震轉動(dong)(dong)加速度(du)(du)(du)計等設備的(de)超(chao)低頻(pin)(pin)校準帶來較(jiao)(jiao)大誤(wu)差。本實施例所述的(de)轉動(dong)(dong)振動(dong)(dong)臺,通(tong)(tong)過(guo)驅動(dong)(dong)磁路14和(he)反(fan)饋磁路22以使測量(liang)(liang)角(jiao)(jiao)位(wei)移(yi)(yi)的(de)量(liang)(liang)程較(jiao)(jiao)大,可(ke)(ke)達(da)到±45°;通(tong)(tong)過(guo)支(zhi)撐軸1和(he)轉動(dong)(dong)臺3以提高承載(zai)力(li),可(ke)(ke)達(da)到60kg;通(tong)(tong)過(guo)驅動(dong)(dong)線(xian)圈8在(zai)(zai)驅動(dong)(dong)磁路14內繞支(zhi)撐軸1的(de)軸線(xian)往(wang)復轉動(dong)(dong),以及反(fan)饋線(xian)圈5在(zai)(zai)反(fan)饋磁路22內繞支(zhi)撐軸1的(de)軸線(xian)往(wang)復轉動(dong)(dong),以拓展轉動(dong)(dong)振動(dong)(dong)臺的(de)低頻(pin)(pin)特性,可(ke)(ke)達(da)到0.003Hz。
參見(jian)圖(tu)8所示,本(ben)實施例的可(ke)選方案(an)中,所述(shu)轉動(dong)(dong)振動(dong)(dong)臺包(bao)括信(xin)號源(yuan)101、加(jia)法器(qi)(qi)102、功率放大器(qi)(qi)103、反饋放大器(qi)(qi)104,積分器(qi)(qi)105和跟隨器(qi)(qi)106。
驅動(dong)線(xian)(xian)圈8依次(ci)通過功率放(fang)大器(qi)(qi)(qi)103、加法(fa)器(qi)(qi)(qi)102與信(xin)(xin)號源101電連接(jie),信(xin)(xin)號源101用于提供正弦電壓信(xin)(xin)號;反(fan)饋線(xian)(xian)圈5通過反(fan)饋放(fang)大器(qi)(qi)(qi)104與加法(fa)器(qi)(qi)(qi)102電連接(jie),反(fan)饋線(xian)(xian)圈5還(huan)分(fen)(fen)別(bie)與積分(fen)(fen)器(qi)(qi)(qi)105和跟隨器(qi)(qi)(qi)106連接(jie),以使(shi)跟隨器(qi)(qi)(qi)106輸出角振(zhen)動(dong)速度信(xin)(xin)號,積分(fen)(fen)器(qi)(qi)(qi)105輸出角振(zhen)動(dong)位移信(xin)(xin)號。
信號源101例如可以為信號發生器;當信號發生器輸出的正弦電壓信號,經加法器102、功率放大器103后輸入給呈扇形的驅動線圈8,驅動線圈8在呈扇形的驅動磁路14的磁縫隙中運動,帶動轉動臺3做角振動。與驅動線圈8同步運動的反饋線圈5在反饋磁路22的磁縫隙中運動產生感應電動勢,此感應電動勢經過反饋放大器104、加法器102和功率放大器103輸入給驅動線圈8,產生阻尼力,通過調整反饋放大器104的放大倍數,可大大提高轉動臺3的阻尼比,也即可大大提高轉動振動臺的阻尼比,從而拓展轉動振動臺的低頻特性。同時反饋線圈5感應電動勢也輸入給跟隨器106和積分器105,分別輸出與轉動振動角振動速度和角振動位移θ成正比的電壓Vθ′和Vθ,該電(dian)壓可(ke)用于轉動地震(zhen)傳感(gan)器等(deng)設備(bei)超低頻校準(zhun)時的(de)標準(zhun)信(xin)號(hao)電(dian)壓。
當忽(hu)略空氣(qi)阻尼時,轉動振動臺的微分方程(cheng)為:
式中:θ轉(zhuan)動(dong)臺(tai)3的(de)角位移,轉(zhuan)動(dong)臺(tai)3的(de)角速度(du);轉(zhuan)動(dong)臺(tai)3的(de)角加速度(du);
為轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)臺(tai)3的(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)慣(guan)量;r為轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)臺(tai)3的(de)(de)臺(tai)面(mian)的(de)(de)半徑,k為轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)臺(tai)3的(de)(de)扭(niu)轉(zhuan)(zhuan)(zhuan)(zhuan)剛度;m為轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)部分質量;
為電子阻尼力系數;G1為反饋線圈5的機電耦合系數,G2為驅動線圈(quan)8的機電(dian)耦合系數;
Tm=G2ir為驅動力(li)矩,i為流(liu)入驅動線圈8的(de)電流(liu),R為功率放大器103的(de)回路電阻。
由于轉動臺3是在低頻(pin)和超低頻(pin)段工作,線圈電感(gan)影響(xiang)可忽(hu)略。
方程(1)的解為:
可求得(de)轉動臺3的阻尼(ni)比為:
從方程(cheng)(3)可以看出,當轉動臺3的(de)機械參數(shu)、線圈的(de)匝數(shu)確定之后,僅需(xu)要提高(gao)反饋放(fang)大(da)(da)器(qi)104的(de)放(fang)大(da)(da)倍數(shu)K,即可增大(da)(da)阻尼比(bi)。
轉動臺3的(de)自振(zhen)頻(pin)率為(wei)
轉(zhuan)動(dong)臺(tai)3的低頻(pin)下限為
從(cong)方程(5)可以看出(chu),阻(zu)尼比越(yue)大(da),轉動振動臺的低頻下(xia)限越(yue)低。
本(ben)實施例中所述轉動振(zhen)動臺采用了(le)對稱的(de)平(ping)面式扇形(xing)磁路結構、扇形(xing)線圈結構和復位裝置(zhi)19,可實現大量程的(de)角振(zhen)動位移(yi)的(de)測量。
實施例二
實(shi)(shi)施(shi)例(li)(li)二(er)提供了(le)一種(zhong)轉(zhuan)動(dong)(dong)振(zhen)動(dong)(dong)系統,該實(shi)(shi)施(shi)例(li)(li)包括(kuo)實(shi)(shi)施(shi)例(li)(li)一所述的(de)轉(zhuan)動(dong)(dong)振(zhen)動(dong)(dong)臺,實(shi)(shi)施(shi)例(li)(li)一所公開(kai)的(de)轉(zhuan)動(dong)(dong)振(zhen)動(dong)(dong)臺的(de)技術特征也適用于該實(shi)(shi)施(shi)例(li)(li),實(shi)(shi)施(shi)例(li)(li)一已(yi)公開(kai)的(de)轉(zhuan)動(dong)(dong)振(zhen)動(dong)(dong)臺的(de)技術特征不再重復描述。
為節約篇幅,該實(shi)(shi)施(shi)例的改(gai)進特征同樣(yang)體現在圖(tu)1、圖(tu)2中,因此,結合圖(tu)1、圖(tu)2對該實(shi)(shi)施(shi)例的方案進行說明。
參(can)見圖1、圖2所(suo)示,本實施(shi)例(li)提供的(de)轉動(dong)(dong)振動(dong)(dong)系統,包(bao)括轉動(dong)(dong)振動(dong)(dong)臺。
轉(zhuan)(zhuan)動(dong)振動(dong)臺的(de)(de)轉(zhuan)(zhuan)動(dong)臺3的(de)(de)臺面上設置有限(xian)(xian)位(wei)(wei)槽(cao)33;外殼設置有與限(xian)(xian)位(wei)(wei)槽(cao)33相(xiang)(xiang)應的(de)(de)鎖緊(jin)限(xian)(xian)位(wei)(wei)裝(zhuang)置23,也即蓋板10設置有與限(xian)(xian)位(wei)(wei)槽(cao)33相(xiang)(xiang)應的(de)(de)鎖緊(jin)限(xian)(xian)位(wei)(wei)裝(zhuang)置23;鎖緊(jin)限(xian)(xian)位(wei)(wei)裝(zhuang)置23的(de)(de)鎖緊(jin)件能夠插(cha)入限(xian)(xian)位(wei)(wei)槽(cao)33內;通過限(xian)(xian)位(wei)(wei)槽(cao)33和鎖緊(jin)限(xian)(xian)位(wei)(wei)裝(zhuang)置23,以便能夠將轉(zhuan)(zhuan)動(dong)振動(dong)臺的(de)(de)轉(zhuan)(zhuan)動(dong)臺3鎖死,避免或者減少運輸途中(zhong)對(dui)轉(zhuan)(zhuan)動(dong)振動(dong)系統的(de)(de)損害。此外,限(xian)(xian)位(wei)(wei)槽(cao)33還可以用于(yu)固定轉(zhuan)(zhuan)動(dong)地震傳感器(qi)等(deng)設備(bei)。
可選地(di),限(xian)位槽33與鎖(suo)緊件采(cai)用(yong)燕尾(wei)的卯榫結(jie)構(gou)。
可選地(di),外殼(ke)設(she)置有與轉(zhuan)(zhuan)動(dong)臺(tai)3相(xiang)應(ying)的(de)刻度盤(pan)24,也(ye)即蓋板10設(she)置有與轉(zhuan)(zhuan)動(dong)臺(tai)3相(xiang)應(ying)的(de)刻度盤(pan)24。通過刻度盤(pan)24,便于讀取轉(zhuan)(zhuan)動(dong)振(zhen)動(dong)臺(tai)轉(zhuan)(zhuan)動(dong)的(de)角位移量程。
本(ben)實施(shi)例中所(suo)述轉(zhuan)動(dong)振動(dong)系統(tong)包(bao)括轉(zhuan)動(dong)振動(dong)臺,具(ju)有(you)結構簡單,便于生產加(jia)工且價格相對低廉,以(yi)及具(ju)有(you)承載力高、最低測量(liang)頻率較低等優(you)點。
本實(shi)施例(li)中(zhong)所述轉動振(zhen)動系統具有(you)實(shi)施例(li)一所述轉動振(zhen)動臺的優點,實(shi)施例(li)一所公開的所述轉動振(zhen)動臺的其他(ta)優點在此不再(zai)重復描述。
最后應(ying)說明(ming)(ming)的(de)(de)(de)是:以(yi)上各實施例(li)僅用(yong)以(yi)說明(ming)(ming)本(ben)(ben)發(fa)明(ming)(ming)的(de)(de)(de)技(ji)術(shu)(shu)方案,而非對(dui)其限制;盡管參照前述各實施例(li)對(dui)本(ben)(ben)發(fa)明(ming)(ming)進(jin)行(xing)了詳(xiang)細的(de)(de)(de)說明(ming)(ming),本(ben)(ben)領域的(de)(de)(de)普(pu)通技(ji)術(shu)(shu)人(ren)員應(ying)當(dang)理(li)解:其依然(ran)可以(yi)對(dui)前述各實施例(li)所記載的(de)(de)(de)技(ji)術(shu)(shu)方案進(jin)行(xing)修(xiu)(xiu)改,或者對(dui)其中部分或者全部技(ji)術(shu)(shu)特(te)征(zheng)進(jin)行(xing)等同替換;而這些修(xiu)(xiu)改或者替換,并不(bu)使相(xiang)應(ying)技(ji)術(shu)(shu)方案的(de)(de)(de)本(ben)(ben)質脫離本(ben)(ben)發(fa)明(ming)(ming)各實施例(li)技(ji)術(shu)(shu)方案的(de)(de)(de)范圍(wei)。