簡要描述:橫河差壓變送器(qi)采(cai)用熱電(dian)(dian)偶(ou)、熱電(dian)(dian)阻(zu)作為(wei)測溫(wen)元(yuan)(yuan)件,從測溫(wen)元(yuan)(yuan)件輸出(chu)信(xin)號送到變送器(qi)模(mo)塊,經過(guo)穩壓濾波、運算放大、非線性校正、V/I轉換(huan)、恒(heng)流及反向保護等電(dian)(dian)路處理后,轉換(huan)成(cheng)(cheng)與溫(wen)度成(cheng)(cheng)線性關(guan)系(xi)的4~20mA電(dian)(dian)流信(xin)號輸出(chu)。