ISSN:
1432-1858
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Technology
Notes:
Abstract An inductive ABS speed and position sensor has been realized, based on an arrangement of batch-fabricated microcoils in a differential transformer configuration. The position of a metallic toothed wheel is measured with a precision of ±2 μm in a 0 to 3.2 kHz bandwidth and at a distance of 0 to 2 mm, with a transformer power consumption of less than 50 mW. Both the differential sensor approach and the ratiometric analysis allow for position detection that is insensitive to target speed, target distance and sensor temperature. The AC excitation allows the frequency to be adapted to the target material and to measure down to zero speed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s005420050056
