Absolute and Noncontact Type Displacement Sensor using Transmission Line for Detecting Multiple Targets
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- Okubo Yoshihiro
- Dept. of Electrical and Electric Engineering, Faculty of Engineering, The University of Tokushima
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- Uebo Tetsuji
- Technological Dev. Dept., Saika Technological Institute Foundation
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- Iritani Tadamitsu
- Dept. of Electrical and Electric Engineering, Faculty of Engineering, The University of Tokushima
Bibliographic Information
- Other Title
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- 伝送線路を利用した非接触式かつ複数ターゲットを検出可能なアブソリュート型変位センサ
- デンソウ センロ オ リヨウ シタ ヒセッショクシキ カツ フクスウ ターゲット オ ケンシュツ カノウ ナ アブソリュートガタ ヘンイ センサ
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Description
In this paper, we propose a noncontact and absolute type displacement sensor detecting multiple targets using standing wave on a transmission line. The standing wave is generated, when driving the transmission line by a high-frequency signal toward the targets, due to additive-synthesis from the drive-signal and the reflected signals induced by the targets. The level of the synthetic signal observed at a certain point on the transmission line, periodically changes with the frequency of the drive-signal. Namely, the observable signal level is a sinusoidal function of the frequency. Besides, the period is inverse proportional to the displacement of each target with reference to the observation point. Thereby, we propose a method to find the period by Fourier Transforming.<br>We have confirmed experimentally that each target can be detected individually in the displacement from 0.2m to 3.6m and the resolution of 0.5mm is feasible.
Journal
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- IEEJ Transactions on Sensors and Micromachines
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IEEJ Transactions on Sensors and Micromachines 124 (12), 464-469, 2004
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679439588224
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- NII Article ID
- 10014162875
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- NII Book ID
- AN1052634X
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- ISSN
- 13475525
- 13418939
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- NDL BIB ID
- 7168229
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed