Wireless and Passive Gyroscope based on Surface Acoustic Wave Gyroscopic Effect
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概要
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The design and performance of a novel wireless and passive gyroscope based on the surface acoustic wave (SAW) gyroscopic effect on a 128° YX LiNbO<sub>3</sub> substrate utilizing two parallel reflective delay lines with opposite directions is described. A theoretical model dealing with the gyroscopic effect using the surface effective permittivity method was established. A coupling of modes (COM) model was used to determine the optimal design parameters of the SAW devices prior to fabrication. The sensor performance towards external applied rotation was evaluated by the precise rate table referring to the network analyzer and antenna as the wireless reader unit. Good phase sensitivity and excellent linearity were observed in the measured results.
- 2011-08-25
著者
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Wang Wen
Institute Of Acoustics Chinese Academy Of Sciences
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Liu Minghua
Institute Of Acoustics Chinese Academy Of Sciences
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Wang Wen
Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100-190, China
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Yang Sangsik
Division of Electronics Engineering, Ajou University, Suwon 443-749, Korea
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Wang Wu
Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, 730000, China
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Liu Jiuling
Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100-190, China
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WANG Wu
Cold and Arid Regions Environment and Engineering
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LIU Jiuling
Institute of Acoustics, Chinese Academy of Sciences
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YANG Sangsik
Division of Electronics Engineering, Ajou University
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Yang Sangsik
Division of Electronics Engineering, Ajou University, Suwon, 443-749, South Korea
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Liu Minghua
Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100-190, China
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