Title :
A capacitive finger-type angular-position and angular-speed sensor
Author_Institution :
Inst. fur Allgemeine Elektrotech. und Elektron., Univ. of Technol. Vienna, Austria
Abstract :
A robust capacitive finger-type angular-position and angular-speed sensor for automotive and metrology applications is presented. The main advantages of this low-cost system are easy mounting and replacement, its simplicity, speed and high resolution (±0.02°) over the absolute measurement range of 180°, compact sensor outlines, and insensitivity to dirt or condensation. The paper describes the working principle, the design and layout of a prototype sensor, if derives the required relationships for computing the angular rotor position, and discusses measurement results obtained from a prototype sensor
Keywords :
angular velocity measurement; automotive electronics; electric sensing devices; position measurement; absolute measurement range; angular-position sensor; angular-speed sensor; automotive applications; capacitive finger-type sensor; layout; metrology applications; resolution; rotor position; Assembly; Axles; Capacitive sensors; Electrodes; Magnetic field measurement; Position measurement; Prototypes; Robustness; Rotation measurement; Stators;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1998. IMTC/98. Conference Proceedings. IEEE
Conference_Location :
St. Paul, MN
Print_ISBN :
0-7803-4797-8
DOI :
10.1109/IMTC.1998.676867
