A Difference SAW Rotation Sensor

Yi-qun, Wei; Li, Wei; Zhu, Jia‐Lin

doi:10.1109/icia.2006.305847

2006 IEEE International Conference on Information Acquisition 2006

DOI: 10.1109/icia.2006.305847

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A Difference SAW Rotation Sensor

Wei Yi-qun

Wei Li

Jia‐Lin Zhu

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2018

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“…Most of the available rotation sensors are wired and/or composed of active elements such as microwave gyroscopes [1], fiber-optic sensors [2], chirped fiber grating rotation sensor [3], coupled lasers rotation sensor (CLARS) [4], optical fiber rotation sensors [5], and surface acoustic wave (SAW) rotation sensors [6], [7]. In [8], a MEMS high-speed angular sensor has been reported, which can be considered as a semi-active design and is capable of wirelessly measuring the angular movement.…”

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A Wireless Metamaterial-Inspired Passive Rotation Sensor With Submilliradian Resolution

et al. 2018

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A novel passive wireless rotation sensing system with high levels of sensitivity and resolution is proposed and demonstrated for measuring elastic-region bending in materials such as steel. This system is composed of a transceiver antenna and a double-plate sensor in the form of an inter-digital configuration, which does not incorporate any active component. The sensor exhibits a large rotation resolution of 20 µ-rad, an excellent sensitivity of 28 MHz/°in average, and a large linear dynamic range of approximately 40°. In operation, as a result of the relative rotation between the plates of the sensor, the operating resonance frequency of the system is shifted. This is read out and tracked in the S 11 response of the transceiver antenna from which the rotation angle is determined. The prototype is designed for microwave regime and it is suitable for measuring very small angles (10 −4 ∼ 10 −5 rad). Critical figuresof-merit of the sensor including sensitivity, dynamic range, and resolution are assessed via systematic measurements, and the validity of resolution experiment is verified by employing digital image correlation method for 2-D measurements.

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A Wireless Metamaterial-Inspired Passive Rotation Sensor With Submilliradian Resolution

et al. 2018

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A Difference SAW Rotation Sensor

Cited by 1 publication

References 11 publications

A Wireless Metamaterial-Inspired Passive Rotation Sensor With Submilliradian Resolution

A Wireless Metamaterial-Inspired Passive Rotation Sensor With Submilliradian Resolution

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