無線加速度傳感器簡介：

內裝集成電路傳感器，內部結構采用先進的隔離剪切結構，頻率范圍寬、技術性能穩定可靠。可做長期振動監測使用，輸出信號是隨振動狀態三向加速度傳感器變化的電壓信號，可直接接電壓表或采集器。
RC6100列(lie)加速(su)度(du)傳感器靈敏度(du)有10 mV/g, 50 mV/g 和 100 mV/g三(san)種選擇(ze)。其陶瓷剪(jian)切型結構的(de)(de)敏感元件，與JFET低噪聲電路芯(xin)片(pian)一并封裝(zhuang)于外殼內。該系列(lie)三(san)軸加速(su)度(du)傳感器輸出的(de)(de)信(xin)號接頭為一個工業標準的(de)(de)4針(zhen)徑向接頭，兼容大部分儀器的(de)(de)接頭。

產品特點
●三軸型，可同時測量X、Y、Z三個方向
●內置IEPE前置放大器
●低噪音JFET電路
●低頻動態好

主要應用
●傳感器適用于所有需要寬頻率振動檢測的用戶
●汽車測試和NVH
●模態結構分析
●常規三軸振動測試

技術參數及性能
●靈敏度：10mv/g、50mv/g、100mv/g（可定制）
●量程范圍：±50g
●頻率響應±3dB：0.2-5KHZ
●供電電壓：DC24V(恒流2~10mA)
●輸出信號：0~5V
●輸出方式;1/4-28四芯
●精度：0.05%
●橫向靈敏度：≤5%
●抗沖擊極限：2000g
●工作溫度：-20℃~120℃
●重量：130g
●敏感元件：壓電陶瓷
●結構：剪切式
●隔離：雙層屏蔽隔離
●密封方式：激光焊接
●外殼(ke)材料：不銹(xiu)鋼多塵環境下還能(neng)具有出色的(de)性能(neng)。

無線加速度傳感器

使(shi)(shi)用(yong)(yong)上限頻(pin)(pin)(pin)率(lv)(lv)(lv)取決于(yu)(yu)幅(fu)(fu)頻(pin)(pin)(pin)曲線(xian)中(zhong)(zhong)的(de)(de)(de)(de)共(gong)(gong)(gong)振頻(pin)(pin)(pin)率(lv)(lv)(lv)，一般小(xiao)阻(zu)尼(z<=0.1)的(de)(de)(de)(de)壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器，上限頻(pin)(pin)(pin)率(lv)(lv)(lv)若取為共(gong)(gong)(gong)振頻(pin)(pin)(pin)率(lv)(lv)(lv)的(de)(de)(de)(de)1/3，便(bian)(bian)可(ke)(ke)(ke)保(bao)證(zheng)幅(fu)(fu)值(zhi)誤(wu)差(cha)(cha)低(di)于(yu)(yu)1dB（即(ji)12%）；若取為共(gong)(gong)(gong)振頻(pin)(pin)(pin)率(lv)(lv)(lv)的(de)(de)(de)(de)1/5，則可(ke)(ke)(ke)保(bao)證(zheng)幅(fu)(fu)值(zhi)誤(wu)差(cha)(cha)小(xiao)于(yu)(yu)0.5dB（即(ji)6%），相移小(xiao)于(yu)(yu)30。但共(gong)(gong)(gong)振頻(pin)(pin)(pin)率(lv)(lv)(lv)與(yu)壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器的(de)(de)(de)(de)固(gu)(gu)(gu)定(ding)(ding)(ding)狀況有關，壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器出(chu)廠時(shi)給出(chu)的(de)(de)(de)(de)幅(fu)(fu)頻(pin)(pin)(pin)曲線(xian)是在剛性(xing)(xing)連接(jie)的(de)(de)(de)(de)固(gu)(gu)(gu)定(ding)(ding)(ding)情(qing)況下(xia)得(de)到(dao)的(de)(de)(de)(de)。實(shi)際使(shi)(shi)用(yong)(yong)的(de)(de)(de)(de)固(gu)(gu)(gu)定(ding)(ding)(ding)方(fang)(fang)法往往難于(yu)(yu)達(da)到(dao)剛性(xing)(xing)連接(jie)，因(yin)而共(gong)(gong)(gong)振頻(pin)(pin)(pin)率(lv)(lv)(lv)和使(shi)(shi)用(yong)(yong)上限頻(pin)(pin)(pin)率(lv)(lv)(lv)都會有所下(xia)降(jiang)。其中(zhong)(zhong)采用(yong)(yong)鋼螺(luo)(luo)栓(shuan)固(gu)(gu)(gu)定(ding)(ding)(ding)，是使(shi)(shi)共(gong)(gong)(gong)振頻(pin)(pin)(pin)率(lv)(lv)(lv)能(neng)達(da)到(dao)出(chu)廠共(gong)(gong)(gong)振頻(pin)(pin)(pin)率(lv)(lv)(lv)的(de)(de)(de)(de)好方(fang)(fang)法。螺(luo)(luo)栓(shuan)不得(de)全部擰入基座(zuo)螺(luo)(luo)孔(kong)，以(yi)免引起基座(zuo)變形，影(ying)響壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器的(de)(de)(de)(de)輸出(chu)。在安(an)裝面(mian)上涂一層(ceng)硅(gui)脂可(ke)(ke)(ke)增(zeng)加(jia)(jia)(jia)(jia)不平(ping)整安(an)裝表面(mian)的(de)(de)(de)(de)連接(jie)可(ke)(ke)(ke)靠性(xing)(xing)。需(xu)要絕(jue)緣時(shi)可(ke)(ke)(ke)用(yong)(yong)絕(jue)緣螺(luo)(luo)栓(shuan)和云母(mu)墊片來(lai)固(gu)(gu)(gu)定(ding)(ding)(ding)壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器，但墊圈應(ying)盡量(liang)簿(bu)(bu)。用(yong)(yong)一層(ceng)簿(bu)(bu)蠟把壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器粘在試件平(ping)整表面(mian)上，也可(ke)(ke)(ke)用(yong)(yong)于(yu)(yu)低(di)溫（40℃以(yi)下(xia)）的(de)(de)(de)(de)場合。手(shou)持探針測(ce)振方(fang)(fang)法,在多點測(ce)試時(shi)使(shi)(shi)用(yong)(yong)特別方(fang)(fang)便(bian)(bian)，但測(ce)量(liang)誤(wu)差(cha)(cha)較大，重復性(xing)(xing)差(cha)(cha)，使(shi)(shi)用(yong)(yong)上限頻(pin)(pin)(pin)率(lv)(lv)(lv)一般不高于(yu)(yu)1000Hz。用(yong)(yong)磁鐵固(gu)(gu)(gu)定(ding)(ding)(ding)壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器，使(shi)(shi)用(yong)(yong)方(fang)(fang)便(bian)(bian)，多在低(di)頻(pin)(pin)(pin)測(ce)量(liang)中(zhong)(zhong)使(shi)(shi)用(yong)(yong)。此法也可(ke)(ke)(ke)使(shi)(shi)壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器與(yu)試件絕(jue)緣。用(yong)(yong)硬性(xing)(xing)粘接(jie)螺(luo)(luo)栓(shuan)或粘接(jie)劑的(de)(de)(de)(de)固(gu)(gu)(gu)定(ding)(ding)(ding)方(fang)(fang)法也長使(shi)(shi)用(yong)(yong)。某種典型的(de)(de)(de)(de)壓(ya)電(dian)(dian)(dian)加(jia)(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)傳(chuan)感(gan)器采用(yong)(yong)上述各(ge)種固(gu)(gu)(gu)定(ding)(ding)(ding)方(fang)(fang)法的(de)(de)(de)(de)共(gong)(gong)(gong)振頻(pin)(pin)(pin)率(lv)(lv)(lv)分別約為：鋼螺(luo)(luo)栓(shuan)固(gu)(gu)(gu)定(ding)(ding)(ding)法31kHz，云母(mu)墊片28kHz，涂簿(bu)(bu)蠟層(ceng)29kHz，手(shou)持法2kHz，磁鐵固(gu)(gu)(gu)定(ding)(ding)(ding)法7kHz。