An incremental capacitive sensor for harsh environment

Author

Brandsttter, B. ; Brasseur, G. ; Cermak, S. ; Zang, Hubert ; Fulmek, P.L.

Author_Institution

Inst. of Electr. Meas. & Meas. Signal Process., Graz Univ. of Technol., Austria

Volume

2

fYear

2002

fDate

2002

Firstpage

841

Abstract

This paper presents a new approach for the design of incremental angular position and angular speed sensors, using a capacitive technology. Transmitter and receiver segments are integrated with the sensor electronics on a single PCB. As the sensor measures the change of capacitance in dependence of the rotor position, any conductive or dielectric material can be used for the gear-tooth rotor. The carrier frequency excitation and the differential sensor output assure a high level of EMC.

Keywords

angular measurement; angular velocity measurement; capacitive sensors; electromagnetic compatibility; position measurement; EMC; PCB; angular position sensors; angular speed sensors; carrier frequency excitation; contactless position sensor; differential sensor output; gear-tooth rotor; harsh environment; incremental capacitive sensor; receiver segment; rotor position; sensor electronics; transmitter segment; Capacitive sensors; Dielectrics; Electromagnetic compatibility; Frequency; Magnetic materials; Magnetic sensors; Optical sensors; Optical transmitters; Position measurement; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2002. Proceedings of IEEE

Print_ISBN

0-7803-7454-1

Type

conf

DOI

10.1109/ICSENS.2002.1037216

Filename

1037216