P2.13 Design of Planar Capacitive Transducers for the Detection of Road Surface Wetness
- SMSI 2020
(did not take place because of Covid-19 virus pandemic)
- SMSI 2020 - Sensors and Instrumentation
- P2 Sensors and Measurement Systems for Physical Quantities
- J. Döring, D. Lepke, K. Krieger - University of Bremen, Bremen (Germany)
- 250 - 251
The increasing level of automation in today’s motor vehicles causes road surface wetness detection to steadily gain in importance. One suitable approach is the detection with planar capacitive sensors on a motor vehicle’s wheel arch liner. In order to design transducers for the detection of road surface wetness, different figures of merit are analyzed by means of the finite element method (FEM) and set in relation to specific design parameters in this paper. Furthermore, we propose three complementary design domains enabling the distinction of a wide range of wetness levels.