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Differential Pressure Sensor

Basic Principle
 
The silicon strain gauge based on MEMS technology is composed of Wheatstone bridge, which is amplified and compensated by ASIC to convert the measured pressure into the corresponding voltage or SENT signal.
 
 
 
Main Function
 
The differential pressure sensor is used in the particle catcher of automobile exhaust aftertreatment system,  to measure the differential pressure between the front and rear channels of DPF & GPF, so that ECU can select reasonable regeneration trigger time and additional fuel injection amount.
 
 
 
Technical Parameter
 
 
Technological Advantage 
 
Using single chip MEMS technology, direct measurement of differential pressure, more responsive
The chip is protected by a special gel, ceramic substrate and gold wire that isolates carbon, water vapor and acid 
The ASIC has real-time temperature compensation to ensure high accuracy output in different temperature