Low energy response fast automotive engine sensor

Product description

The detection principle of CNG/LPG High Pressure Sensor is roughly divided into catalytic combustion type and electrochemical type, and a few instruments will use semiconductor and infrared principle sensors. Working principle of electrochemical sensor: external gas into the gas detector, gas through the PTFE film into the sensor to reach the electrode, according to different phosphine detection gas occurs different electrochemical reaction, when the gas reaches the electrode will be oxidized, oxidation reaction makes the electron through the external circuit from the working electrode to the plate, forming a current, and the gas is proportional to each other. Then the current is detected and amplified inside the gas detector and measured after output. Finally, the gas concentration is displayed on the screen. Working principle of catalytic combustion sensor: The natural gas detector consists of two fixed resistance Wheatstone detection Bridges. When the gas mixture containing natural gas diffuses to the detection element, it quickly carries out flameless combustion, and produces reaction heat, so that the resistance value of the hot wire increases, and the voltage signal of the bridge output changes, and the size of the voltage signal is proportional to the concentration of the combustible gas. Specializing in the manufacture of common rail Pressure Transmitter, Hydraulic High Pressure Sensor, Water Pressure Transmitter, CNG/LPG high Pressure Sensor, water purifier pressure transmitter, Urea Pressure Sensor, etc.