Highly sensitive AlGaAs/GaAs position sensors formeasurement of tyre tread deformation

Abstract

The authors propose, and have realised, highly sensitive 2DEG Hall crosses for the measurement of tyre tread deformation in automotive research. Monolithically integrated three-dimensional position sensors with a sensitivity of SI = 699 V/AT have been fabricated and used for the measurement and analysis of tyre parameters. A complete telemetry system for the wireless transmission of sensor signals has been realised. The passive transponder concept is discussed.