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推薦PTS11壓力變送器(qi)大量銷售(shou) 采用(yong)擴散(san)硅壓力芯體(ti)作(zuo)為測量單元。擴散(san)硅傳感器(qi)的(de)原理(li)是(shi)硅材料受壓力作(zuo)用(yong)時電阻發生變化的(de)特(te)性。精巧實用(yong)，功能齊全，體(ti)積小(xiao)巧，安裝方便，使用(yong)靈活(huo)，經濟適用(yong)。還可以選擇是(shi)否帶LED表頭顯示。

PTS21壓力(li)(li)變(bian)(bian)送器 則是(shi)采用(yong)(yong)干式(shi)陶(tao)瓷電(dian)(dian)(dian)容傳感(gan)器作為(wei)測量單(dan)元。精(jing)密型壓力(li)(li)變(bian)(bian)送器在測量時(shi)，過程壓力(li)(li)直接作用(yong)(yong)于堅固(gu)耐腐蝕的(de)陶(tao)瓷膜片上，使(shi)膜片產生彈性位(wei)移(yi)，根(gen)據電(dian)(dian)(dian)容值的(de)大(da)(da)小與兩(liang)極間(jian)的(de)距離(li)成反(fan)比(bi)的(de)原理，就(jiu)可(ke)以從襯底電(dian)(dian)(dian)極和膜片電(dian)(dian)(dian)極之(zhi)間(jian)檢測到(dao)電(dian)(dian)(dian)容的(de)變(bian)(bian)化，檢測到(dao)的(de)變(bian)(bian)化電(dian)(dian)(dian)容經(jing)微調電(dian)(dian)(dian)路放大(da)(da)后，可(ke)輸出(chu)一(yi)個準確(que)的(de)電(dian)(dian)(dian)壓信(xin)號，輸出(chu)的(de)電(dian)(dian)(dian)壓信(xin)號通過變(bian)(bian)送器轉換成4~20mA的(de)電(dian)(dian)(dian)流信(xin)號輸出(chu)