Sensorless position detection of a linear actuator using the resonance frequency

This paper presents a method to detect the position of a linear actuator without any position sensor. The actuator winding has a resonance frequency that is very related to the position of the linear actuator Pmoving part. A sinusoidal scan voltage is superposed to the main voltage. Its frequency is close to the resonance frequency and therefore it is possible to measure the resulting scan current amplitude that allows position detection.


Published in:
Proceedings of the 12th International Conference on Electrical Machines and Systems (ICEMS 2009)
Presented at:
12th International Conference on Electrical Machines and Systems (ICEMS 2009), Tokyo, Japan, November 15-18, 2009
Year:
2009
Publisher:
Tokyo, Japan
Keywords:
Laboratories:




 Record created 2009-09-30, last modified 2018-03-17


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