Article | REF: R401 V1

Sensors - Design principles

Authors: Yves PARMANTIER, Frédéric KRATZ

Publication date: September 10, 2009, Review date: March 15, 2022

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11. Gas sensors

The different types of sensor are as follows.

  • Solid electrolyte probes (figure 44 )

    • oxygen sensor, air reference (figure 44 a): the gas flows through an electrolyte tube; two electrodes measure the emf between the platinum wire of the thermocouple and the platinum wire connected to the reference electrode. Figure 44 b shows the model used for internal combustion engines;

    • sensor for chlorine measurement (figure 44...

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Gas sensors