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压力变送器

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压力变送器与液位传感器区别如何接线

压力变送器与液位传感器区别如何接线

产品说明:  压力变送器与液位传感器是各类设备中或项目中经常遇到的两类传感器,下面来了解压力变送器与液位传感器两者的区别。  1,压力传感器和液位传感器的测量原理,都是将传感器

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  1,压力传感器和液位传感器的测量原理,都是将传感器投入被测液体设定深度,传感器测量点直接接触液面受到的压力公式为:Ρ=ρ.g.H+Po式中:P表示液位传感器测量点直接接触液面所受压力,ρ表示被测液体的密度值,g表示重力加速度(调试时按照9.8015)Po是液面上大气压H是传感器投入液体的深度同时,压力变送器狗万官网通过导气不锈钢将液体的压力引入到传感器的正压腔,再将液面上的大气压Po与传感器的负压腔相连,以抵消传感器背面的Po,使传感器测得压力为:ρ.g.H,显然,通过测取压力P,可以得到液位深,只是压力传感器输出是是压力P,而液位传感器输出的是深度H。

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