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产品展示 Products变送器 > 压力变送器  > 压力变送器工作原理

产品名称:压力变(bian)送器工(gong)作原理

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产品特点:压力(li)变(bian)(bian)送(song)器(qi)工作原理,压力(li)变(bian)(bian)送(song)器(qi)用于测(ce)量液体、气体或蒸汽的液位、密度和(he)压力(li),然后(hou)将压力(li)信(xin)号转(zhuan)变(bian)(bian)成4-20mADC信(xin)号输出。主要有电容式(shi)压力(li)变(bian)(bian)送(song)器(qi)和(he)扩散(san)硅压力(li)变(bian)(bian)送(song)器(qi),陶(tao)瓷压力(li)变(bian)(bian)送(song)器(qi),应变(bian)(bian)式(shi)压力(li)变(bian)(bian)送(song)器(qi)等。

压力变送器工作原理的详细资料:

压力变送器工作原理

压(ya)(ya)力变(bian)送(song)(song)器用于(yu)测(ce)量液体、气体或(huo)蒸汽的液位、密度和(he)压(ya)(ya)力,然后将压(ya)(ya)力信(xin)号转变(bian)成(cheng)4-20mADC信(xin)号输出。主要有电(dian)容(rong)式压(ya)(ya)力变(bian)送(song)(song)器和(he)扩散(san)硅(gui)压(ya)(ya)力变(bian)送(song)(song)器,陶瓷(ci)压(ya)(ya)力变(bian)送(song)(song)器,应变(bian)式压(ya)(ya)力变(bian)送(song)(song)器等(deng)。

介质压力直接作用于敏(min)感(gan)膜片上(shang),分布于敏(min)感(gan)膜片上(shang)的电(dian)阻(zu)组(zu)成的惠斯通电(dian)桥,利用压阻(zu)效应实(shi)现(xian)了(le)压力量向电(dian)信(xin)号的转换,通过电(dian)子线路将敏(min)感(gan)元件产生的毫(hao)伏信(xin)号放大为工业标准信(xin)号。

当压(ya)(ya)力直(zhi)接作用(yong)(yong)在测量膜片的表面,使膜片产生微小(xiao)的形变,测量膜片上的高精度(du)电(dian)路将(jiang)这(zhei)个微小(xiao)的形变变换成(cheng)为与压(ya)(ya)力成(cheng)正(zheng)(zheng)比(bi)的高度(du)线(xian)性(xing)、与激励电(dian)压(ya)(ya)也成(cheng)正(zheng)(zheng)比(bi)的电(dian)压(ya)(ya)信(xin)号(hao)(hao),然后采(cai)用(yong)(yong)芯(xin)片将(jiang)这(zhei)个电(dian)压(ya)(ya)信(xin)号(hao)(hao)转换为工业标(biao)准(zhun)的4-2OmA电(dian)流信(xin)号(hao)(hao)或者1-5V电(dian)压(ya)(ya)信(xin)号(hao)(hao)。
  由于测量膜(mo)片(pian)采用标准(zhun)化(hua)集成(cheng)电路,内(nei)部包含线(xian)性(xing)及温度(du)补偿电路,所以可以做到高(gao)精度(du)和高(gao)稳定性(xing),变(bian)送电路采用的(de)两线(xian)制(zhi)芯片(pian),可以保证输出两线(xian)制(zhi)4-2OmA电流信号(hao),方便(bian)现(xian)场(chang)接线(xian)。

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