Presentation | 2001/9/21 An Ultrasonic Displacement Measurement Method Using a Piezoelectric Device Morimasa NISHIHIRA, Kazuki YUZE, Kazuhiko IMANO, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | A novel measurement method of displacement using ultrasonic waves having a pair of frequencies(ƒ_0andƒ_1) generated by a piezoelectric device is described. The displacement is estimated from the detected phases of ultrasonic received signals and the detectable displacement range is extended by neighboring the frequency interval(ƒ_0-ƒ_1). The displacement measurements based on our method were carried out using ultrasonic waves of 5 MHz in water. Although a measurement range using the single frequency measurements is limited to a half of wavelength or less, the extension of the measurement range by 500 times of wavelength is accomplished by our method. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | a pair of frequencies / displacement measurement / phase detection / frequency interval / piezoelectric device |
Paper # | EMD2001-61 |
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Committee | EMD |
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Conference Date | 2001/9/21(1days) |
Place (in Japanese) | (See Japanese page) |
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Registration To | Electromechanical Devices (EMD) |
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Language | ENG |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | An Ultrasonic Displacement Measurement Method Using a Piezoelectric Device |
Sub Title (in English) | |
Keyword(1) | a pair of frequencies |
Keyword(2) | displacement measurement |
Keyword(3) | phase detection |
Keyword(4) | frequency interval |
Keyword(5) | piezoelectric device |
1st Author's Name | Morimasa NISHIHIRA |
1st Author's Affiliation | Department of Electrical and Electronic Engineering, Faculty of Engineering and Resource Science, Akita University() |
2nd Author's Name | Kazuki YUZE |
2nd Author's Affiliation | Department of Electrical and Electronic Engineering, Faculty of Engineering and Resource Science, Akita University |
3rd Author's Name | Kazuhiko IMANO |
3rd Author's Affiliation | Department of Electrical and Electronic Engineering, Faculty of Engineering and Resource Science, Akita University |
Date | 2001/9/21 |
Paper # | EMD2001-61 |
Volume (vol) | vol.101 |
Number (no) | 327 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |