The principle of double flanged liquid level sensor

Liquid level sensor is a kind of measuring the pressure of liquid level sensor, it is divided into two categories, contact and non-contact, contact including single flange static pressure double flange differential pressure transmitter, liquid level ball float liquid level transmitter, magnetic liquid level transmitter, the inputting type liquid level transmitter, electric ball float liquid level transmitter, electric float liquid level transmitter, capacitive liquid level transmitter, magnetostrictive liquid level transmitter, server liquid level transmitter, etc. Including non-contact ultrasonic liquid level transmitter, radar liquid level transmitter, etc.

there is a sensor in liquid level measurement, double flanged liquid level sensor. Double flanged liquid level sensor is by measuring diaphragm and on both sides of the insulation on the electrodes of a capacitor. When we have different pressure on both sides, making measuring displacement of the diaphragm, the superposition of line detection in the 4 - 20 ma signal of digital signal, and through the loop transfer information needed. The displacement and stress is directly proportional to the difference, so both sides capacitance range, through the link of oscillation and demodulation, is converted into is proportional to the pressure signal. Simply double flanged liquid level sensor is two ordinary differential pressure sensor die box using silicone oil as the extension and the terminal and the mold box. Double flanged liquid level sensor measurement of liquid column static head, the pressure is equal to take pressure of liquid column height above the lu multiplied by the specific weight of the liquid, has nothing to do with the volume and shape of the container. Measurement depends largely on the quality of the transducer and guide the installation of pressure pipe is correct.

double flange dowel joint consists of flange loose tube expansion joint and short of pipe flange and dowel screw components, can reduce the piping installation error by fitting thrust and pressure compensation, double flanged liquid level sensor dowel joint can't absorb the axial displacement. Double flange dowel joint is mainly used for loose tube connection of pumps, valves and other accessories. Double flange loose set of dowel joint is a loose set of expansion joint and short of pipe flange and dowel screw components, it can deliver the fittings of thrust and pressure compensation line error, can't absorb the axial displacement. Mainly used in pumps, valves, piping accessories such as loose tube connection.

double flanged liquid level sensor measurement of liquid level can be used in harsh environment. Need to be aware of is in selecting the installation site, carefully to reduce the sensor of temperature gradient, temperature fluctuation, the impact of vibration.