Title :
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
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;
Conference_Titel :
Sensors, 2002. Proceedings of IEEE
Print_ISBN :
0-7803-7454-1
DOI :
10.1109/ICSENS.2002.1037216
