The sensing membrane is a strained elastic component , which displacement changing as differential pressure for gp gauge transmitter , atmospheric pressure may be brought to bear as well as low - pressure side on the sensing membrane 传感膜片是一个张紧的弹性元件,其位移随所受差压而变化对于gp表压变送器,大气压力如同施加在传感膜片的低压侧一样。