影響測力傳感器穩定性的幾大因素


今天我們來討論一下影響測力傳感器wendingxingdeyinsu,chuanganqibuwendingshuchudexinhaojiuhuiyouwu,geishiyongzhedailaibubian,yinci,yaotigaowendingxingjiuyaocongyuantoukaishikongzhi,zhangwoyingxiangwendingxingdejibenyinsu,jinlibimianyingxiang,raneryingxiangcelichuanganqiwendingxingdeyinsuyouhenduo,jutidouyounaxiene?zhejiushiwomenjintianyaojiangdezhongdianle,xiamianyiqilaikankan。


按鈕式測力傳感器


(1)測力傳感器的結構,這和結構有什麼緊密關聯呢?首先我們要知道傳感器的彈性元件、外殼、膜片以及上壓頭、下(xia)壓(ya)墊(dian)的(de)設(she)計(ji),要(yao)保(bao)證(zheng)受(shou)載(zai)後(hou)在(zai)結(jie)構(gou)上(shang)不(bu)產(chan)生(sheng)性(xing)能(neng)波(bo)動(dong),或(huo)性(xing)能(neng)波(bo)動(dong)很(hen)小(xiao),這(zhe)就(jiu)要(yao)在(zai)設(she)計(ji)的(de)時(shi)候(hou),盡(jin)量(liang)做(zuo)到(dao)應(ying)變(bian)區(qu)受(shou)力(li)單(dan)一(yi)了(le),應(ying)力(li)均(jun)勻(yun)一(yi)致(zhi),貼(tie)片(pian)部(bu)位(wei)最(zui)好(hao)是(shi)平(ping)麵(mian),因(yin)此(ci)在(zai)結(jie)構(gou)上(shang),就(jiu)要(yao)保(bao)證(zheng)一(yi)定(ding)抗(kang)偏(pian)心(xin)載(zai)荷(he)的(de)能(neng)力(li),安(an)裝(zhuang)遠(yuan)離(li)應(ying)變(bian)區(qu),測(ce)量(liang)時(shi)應(ying)避(bi)免(mian)載(zai)荷(he)支(zhi)承(cheng)點(dian)的(de)位(wei)移(yi)。盡(jin)管(guan)測(ce)力(li)傳(chuan)感(gan)器(qi)屬(shu)於(yu)裝(zhuang)配(pei)製(zhi)造(zao)產(chan)品(pin),但(dan)為(wei)了(le)保(bao)證(zheng)具(ju)有(you)最(zui)佳(jia)技(ji)術(shu)性(xing)能(neng)和(he)長(chang)期(qi)穩(wen)定(ding)性(xing),盡(jin)可(ke)能(neng)將(jiang)它(ta)設(she)計(ji)成(cheng)一(yi)個(ge)整(zheng)體(ti)結(jie)構(gou)。


(2)danxingyuanjiandejinshucailiao,kebuyaoxiaoqiaota,taduicelichuanganqidezonghexingnenghechangqiwendingxingqiguanjianzuoyong。suoyiyingxuanzeqiangdujixianhedanxingjixiangao,danxingmoliangdeshijian、溫度穩定性好,彈性滯後小,機械加工和熱處理產生的殘餘應力小的材料。有資料表明:隻zhi要yao材cai料liao淬cui火huo後hou的de塑su性xing好hao,它ta在zai機ji械xie加jia工gong和he熱re處chu理li後hou的de殘can餘yu應ying力li就jiu小xiao。還hai要yao特te別bie重zhong視shi彈dan性xing模mo量liang隨sui時shi間jian的de穩wen定ding性xing,要yao求qiu在zai測ce力li傳chuan感gan器qi使shi用yong壽shou命ming期qi間jian內nei材cai料liao的de彈dan性xing模mo具ju不bu發fa生sheng變bian化hua。


(3)彈dan性xing元yuan件jian在zai機ji械xie加jia工gong過guo程cheng中zhong,由you於yu表biao麵mian變bian形xing的de不bu均jun勻yun產chan生sheng較jiao大da的de殘can餘yu應ying力li,切qie削xue用yong量liang越yue大da,殘can餘yu應ying力li就jiu越yue大da,磨mo削xue加jia工gong產chan生sheng的de殘can餘yu應ying力li最zui大da。因yin此ci應ying製zhi訂ding合he理li的de加jia工gong工gong藝yi和he規gui定ding適shi當dang的de切qie削xue用yong量liang。彈dan性xing元yuan件jian在zai熱re處chu理li過guo程cheng中zhong,由you於yu冷leng卻que溫wen度du不bu均jun勻yun和he金jin屬shu材cai料liao相xiang變bian等deng原yuan因yin,在zai芯xin部bu和he表biao層ceng產chan生sheng方fang向xiang不bu同tong的de殘can餘yu應ying力li,其qi芯xin部bu為wei拉la應ying力li,表biao層ceng為wei壓ya應ying力li。必bi須xu通tong過guo回hui火huo處chu理li工gong藝yi,在zai其qi內nei部bu產chan生sheng方fang向xiang相xiang反fan的de應ying力li,與yu殘can餘yu應ying力li相xiang互hu抵di消xiao,減jian少shao殘can餘yu應ying力li的de影ying響xiang。


(4)電阻應變計應具有最佳性能,要求靈敏係數穩定性好,熱輸出小,機械滯後和蠕變小,應變量為1000×10-6時疲勞壽命可達108,電阻值偏差小,批次質量均一性好等。應變粘結劑應具有粘結強度大,抗剪強度高;彈性模量較大且穩定;電絕緣性能好;具有與彈性元件相同或相近的熱膨脹係數;蠕變和滯後小;固化時膠層體積收縮小等。粘貼電阻應變計時一定要嚴格控製膠層厚度,因為粘結強度隨膠層厚度的增加而降低。


這(zhe)是(shi)由(you)於(yu)薄(bo)的(de)膠(jiao)層(ceng)需(xu)要(yao)更(geng)大(da)的(de)應(ying)力(li)才(cai)能(neng)變(bian)形(xing),不(bu)易(yi)產(chan)生(sheng)流(liu)動(dong)和(he)蠕(ru)變(bian),界(jie)麵(mian)上(shang)的(de)內(nei)應(ying)力(li)很(hen)小(xiao),產(chan)生(sheng)氣(qi)泡(pao)和(he)缺(que)陷(xian)的(de)幾(ji)率(lv)也(ye)比(bi)較(jiao)小(xiao),應(ying)變(bian)傳(chuan)遞(di)性(xing)能(neng)好(hao),隻(zhi)要(yao)防(fang)護(hu)密(mi)封(feng)合(he)理(li)就(jiu)可(ke)達(da)到(dao)較(jiao)高(gao)的(de)穩(wen)定(ding)性(xing)水(shui)平(ping)。

(5)應ying變bian式shi測ce力li傳chuan感gan器qi的de工gong作zuo原yuan理li和he總zong體ti結jie構gou決jue定ding了le,在zai生sheng產chan工gong藝yi流liu程cheng中zhong有you些xie工gong序xu必bi須xu手shou工gong操cao作zuo,人ren為wei的de因yin素su對dui測ce力li傳chuan感gan器qi的de質zhi量liang影ying響xiang較jiao大da。因yin此ci必bi須xu製zhi訂ding科ke學xue合he理li並bing可ke重zhong複fu的de製zhi造zao工gong藝yi流liu程cheng,並bing在zai其qi中zhong增zeng加jia電dian子zi計ji算suan機ji控kong製zhi的de自zi動dong化hua或huo半ban自zi動dong化hua工gong序xu,盡jin量liang減jian少shao人ren為wei因yin素su對dui產chan品pin質zhi量liang的de影ying響xiang。


(6)應ying變bian式shi測ce力li傳chuan感gan器qi屬shu於yu裝zhuang配pei製zhi造zao,貼tie片pian組zu橋qiao後hou就jiu形xing成cheng了le產chan品pin,由you於yu內nei部bu不bu可ke避bi免mian的de產chan生sheng一yi些xie缺que陷xian和he外wai界jie環huan境jing條tiao件jian的de影ying響xiang,測ce力li傳chuan感gan器qi的de某mou些xie性xing能neng指zhi標biao達da不bu到dao設she計ji要yao求qiu,因yin此ci必bi須xu進jin行xing各ge項xiang電dian路lu補bu償chang與yu調tiao整zheng,提ti高gao測ce力li傳chuan感gan器qi本ben身shen的de穩wen定ding性xing和he對dui外wai部bu環huan境jing條tiao件jian的de穩wen定ding性xing。完wan善shan而er精jing細xi的de電dian路lu補bu償chang工gong藝yi,是shi提ti高gao測ce力li傳chuan感gan器qi穩wen定ding性xing的de重zhong要yao環huan節jie。


(7)fanghuyumifengshicelichuanganqizhizaogongyiliuchengzhongdeyaohaigongxu,shicelichuanganqinaishoukeguanhuanjingheganyinghuanjingyingxiangernengwendingkekaogongzuodegenbenbaozhang。ruguofanghumifengbuliang,zhantiezaidanxingyuanjianshangdedianzuyingbianjijiyingbianzhanjiejijiaoceng,douhuixishoukongqizhongdeshuifenerchanshengzengsu,zaochengzhanjieqiangduhegangduxiajiang,yinqilingdianpiaoyiheshuchuwuguilvbianhua,zhizhicelichuanganqishixiao。yinciyouxiaodefanghumifengshicelichuanganqichangqiwendinggongzuodegenbenbaozheng,fouzejiangshigexianggongyichengguoqiangongjinqi。


測力傳感器


(8)提(ti)高(gao)測(ce)力(li)傳(chuan)感(gan)器(qi)的(de)穩(wen)定(ding)性(xing)除(chu)處(chu)理(li)好(hao)上(shang)述(shu)各(ge)種(zhong)因(yin)素(su)的(de)影(ying)響(xiang)外(wai),最(zui)重(zhong)要(yao)的(de)途(tu)徑(jing)就(jiu)是(shi)采(cai)取(qu)各(ge)種(zhong)技(ji)術(shu)措(cuo)施(shi)和(he)工(gong)藝(yi)手(shou)段(duan),模(mo)擬(ni)使(shi)用(yong)條(tiao)件(jian)進(jin)行(xing)有(you)效(xiao)的(de)人(ren)工(gong)老(lao)練(lian)試(shi)驗(yan),盡(jin)量(liang)多(duo)的(de)釋(shi)放(fang)殘(can)餘(yu)應(ying)力(li)使(shi)其(qi)性(xing)能(neng)波(bo)動(dong)減(jian)至(zhi)最(zui)小(xiao)。


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2018-03-13 748
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