Differential pressure sensor

  • 08-Apr-2013 03:45 EDT

Suitable for assisting diesel automotive customers with accuracy and durability in controlling emissions, Sensata Technologies Inc.’s generation-2 differential pressure sensor (DPS) controls regeneration of a diesel vehicle’s exhaust particle filter. Regeneration destroys unhealthy microscopic particles the filter captured, and DPS’ accurate signal helps minimize the effect of regeneration on fuel economy. The sensor’s signal is also used to determine if the particle filter continues to meet emissions requirements. The DPS can control the engine’s low-pressure exhaust gas recirculation (EGR) system to reduce emissions of nitrogen oxide. Sensata measures differential pressure using only one sense element instead of two, which enables very high accuracy, the company claims. Sensata’s MEMS technology and single edge nibble transmission (SENT) digital signal deliver high accuracy throughout the sensor’s life. 

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