B7.2 Influence of the Gas Velocity on the Temperature Homogeneity of Transducers for Gas Sensors
- SMSI 2021
2021-05-03 - 2021-05-06
- SMSI 2021 - Sensors and Instrumentation
- B7 Sensor Materials I
- J. Herrmann, T. Kern, G. Hagen, R. Moos - University of Bayreuth, Bayreuth (Germany)
- 147 - 148
High-temperature gas sensors need homogeneous heating in the functional sensing area. Varying gas flow characteristics lead to cross-effects and signal instability. Utilizing a special sensor transducer, these effects can be proven experimentally. FEM modelling further supports the understanding. Proper protection caps solve cross-sensitivity problems but also cause decreasing sensor response.