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An accurate contactless position sensor with planar resonators | IEEE Conference Publication | IEEE Xplore

An accurate contactless position sensor with planar resonators


Abstract:

In this paper, we report the development of a contactless position sensor with thin and planar structures for both sensor and target. The target is designed to be a compa...Show More

Abstract:

In this paper, we report the development of a contactless position sensor with thin and planar structures for both sensor and target. The target is designed to be a compact resonator with resonance near the operating frequency, which improves the signal strength and increases the sensing range. The sensor is composed of a source coil and a pair of symmetrically arranged detecting coils. With differential measurement technique, highly accurate edge detection can be realized. Experiment results show that the sensor operates at varying gap size between the target and the sensor, even when the target is at 30 mm away, and the achieved accuracy is within 2% of the size of the sensing coil.
Published in: 2016 IEEE SENSORS
Date of Conference: 30 October 2016 - 03 November 2016
Date Added to IEEE Xplore: 09 January 2017
ISBN Information:
Conference Location: Orlando, FL, USA

References

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