化工自动化及仪表
化工自動化及儀錶
화공자동화급의표
CONTROL AND INSTRUMENTS IN CHEMICAL INDUSTRY
2015年
1期
20-25
,共6页
双法兰差压液位变送器%浮筒液位计%零点与量程计算%精度%测量原理
雙法蘭差壓液位變送器%浮筒液位計%零點與量程計算%精度%測量原理
쌍법란차압액위변송기%부통액위계%영점여량정계산%정도%측량원리
double-flange differential pressure transmitter%float level transmitter%zero point and range calcu-lation%accuracy%measurement principle
从测量原理、零点与量程的计算方法、测量精度、测量稳定性、价格及维护成本等方面对双法兰差压液位变送器与浮筒液位计进行了比较。结果表明:除了双法兰差压液位变送器的适用介质温度范围小于浮筒液位计外,在测量精度、测量范围、稳定性、调校方法及价格等方面均优于浮筒液位计。而且,在一定的测量范围内,可以用双法兰差压液位变送器替代浮筒液位计获得被测容器的真实液位。
從測量原理、零點與量程的計算方法、測量精度、測量穩定性、價格及維護成本等方麵對雙法蘭差壓液位變送器與浮筒液位計進行瞭比較。結果錶明:除瞭雙法蘭差壓液位變送器的適用介質溫度範圍小于浮筒液位計外,在測量精度、測量範圍、穩定性、調校方法及價格等方麵均優于浮筒液位計。而且,在一定的測量範圍內,可以用雙法蘭差壓液位變送器替代浮筒液位計穫得被測容器的真實液位。
종측량원리、영점여량정적계산방법、측량정도、측량은정성、개격급유호성본등방면대쌍법란차압액위변송기여부통액위계진행료비교。결과표명:제료쌍법란차압액위변송기적괄용개질온도범위소우부통액위계외,재측량정도、측량범위、은정성、조교방법급개격등방면균우우부통액위계。이차,재일정적측량범위내,가이용쌍법란차압액위변송기체대부통액위계획득피측용기적진실액위。
The double-flange differential pressure level transmitter was compared with the the float level trans-mitter in the level measurement principle,zero point and range calculation method,measurement accuracy, measurement stability,price and their maintenance costs.The results show that the double-flange differential pressure level transmitter outperforms the float level transmitter in the measurement accuracy and range,stabil-ity and adjustment method as well as the price with the exception of medium temperature range.It can replace the float level transmitter in a certain measurement range.