Labs Idea #1: Measure Adblue/Urea Concentration in Liquids with Sensirion’s Differential Pressure Sensor
AdBlue is the brand name for a diesel exhaust fluid used by modern diesel engines to reduce the amount of NOx in a selective catalytic reduction.process during combustion. An Adblue concentration sensor supports monitoring of the Adblue tank in order to avoid refuelling with water, diesel or incorrect Adblue concentration. Sensirion's differential pressure sensor is a semiconductor MEMS version of the traditional hot wire anemometer and allows precise measurement of variations in thermal conductivity subject to variations of urea concentration. Thus, the differential pressure sensor operates as concentration sensor in this application.
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