The principle and application of the input type liquid level sensor

Input type liquid level sensor is a kind of commonly used liquid level measuring instrument, based on the measured liquid static pressure and the liquid height is proportional to the principle of measurement, is widely used in petroleum, chemical industry, metallurgy, electric power, water supply and drainage, environmental protection and other fields. Engineering today is to introduce the specific investment type liquid level sensor, the hope can help to you.

the inputting type liquid level sensor working principle of

when the liquid level transmitter into the liquid to be tested in a certain depth, the sensor to meet the pressure on liquid level formula is: Ρ = rho gH + Po

type:

P: transmitter into liquid level pressure

rho: the measured liquid density

g: local acceleration of gravity

Po: liquid surface atmosphere

H: transmitter into the depth of the liquid

at the same time, through the gas leading stainless steel will be introduced to the liquid pressure sensor of positive pressure cavity, and the atmospheric pressure on the surface of the liquid Po and sensors connected to the negative pressure cavity, to offset the Po on the reverse of the sensor, the sensor measured pressure is: rho gH, obviously, through the acquisition of pressure P, you can get the depth of the liquid level.

type liquid level sensor application

input type liquid level sensor ( Static pressure liquid level meter liquid level transmitter liquid level sensor water level sensor) Is a kind of measuring the pressure of liquid level sensor.

input type liquid level sensor ( Level gauge) Is based on the measured hydrostatic principle of proportional to the height of the liquid, USES the overseas advanced isolation diffusion silicon sensing element or sensitive ceramic capacitance pressure sensor, the static pressure is converted to electrical signals, after temperature compensation and the linear correction, converted into a standard electrical signals ( Is commonly 4 ~ 20 ma1 ~ 5 VDC) 。

input type liquid level sensor ( Level gauge) Applicable to petrochemical industry, metallurgy, electric power, pharmaceutical, water supply and drainage, environmental protection system and industry such as all kinds of medium level measurement. Exquisite structure, simple adjustment and flexible installation convenience is provided for the user to easily use. The user can choose according to need 4 ~ 20 ma, 0 ~ 5 v, 0 ~ 10 ma, such as standard signal output.