午夜福利理论片在线观看播放_欧美熟妇XXXXX老少配_99久久免费精品国产72精品九九_成人丝袜激情一区二区

推薦PTS11壓(ya)(ya)力(li)(li)變(bian)送器(qi)大量銷售(shou) 采用(yong)(yong)擴散硅(gui)壓(ya)(ya)力(li)(li)芯(xin)體(ti)作為測量單(dan)元。擴散硅(gui)傳(chuan)感器(qi)的原理是硅(gui)材(cai)料受壓(ya)(ya)力(li)(li)作用(yong)(yong)時電阻(zu)發(fa)生變(bian)化的特性。精巧實用(yong)(yong)，功(gong)能齊(qi)全，體(ti)積小巧，安裝方(fang)便，使用(yong)(yong)靈活(huo)，經濟(ji)適用(yong)(yong)。還可(ke)以選(xuan)擇是否帶(dai)LED表(biao)頭顯(xian)示。

PTS21壓力變(bian)送器(qi) 則是采用干式(shi)陶瓷(ci)(ci)電(dian)(dian)容(rong)(rong)傳感器(qi)作為測量單元。精密(mi)型壓力變(bian)送器(qi)在測量時(shi)，過(guo)程壓力直接作用于堅固(gu)耐腐蝕(shi)的(de)陶瓷(ci)(ci)膜(mo)片上，使膜(mo)片產生彈(dan)性位移，根據電(dian)(dian)容(rong)(rong)值(zhi)的(de)大(da)小與兩(liang)極間的(de)距離成反(fan)比的(de)原(yuan)理，就可以從襯(chen)底電(dian)(dian)極和(he)膜(mo)片電(dian)(dian)極之間檢測到電(dian)(dian)容(rong)(rong)的(de)變(bian)化，檢測到的(de)變(bian)化電(dian)(dian)容(rong)(rong)經微調(diao)電(dian)(dian)路放大(da)后，可輸(shu)(shu)出(chu)一個準確的(de)電(dian)(dian)壓信號，輸(shu)(shu)出(chu)的(de)電(dian)(dian)壓信號通過(guo)變(bian)送器(qi)轉換成4~20mA的(de)電(dian)(dian)流(liu)信號輸(shu)(shu)出(chu)