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| Presentation | 2009-01-30 11:00 Improved system for in-plane mode shape measurement based on two-laser speckle interferometer Yasuaki Watanabe, Kentaro Tachibana, Tomoyuki Ishii, Noriyuki Imaeda, Shigeyoshi Goka, Takayuki Sato, Hitoshi Sekimoto (Tokyo Metropolitan Univ.)  US2008-83 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Two-light-source laser speckle system for visualizing the in-plane mode shapes of high frequency piezoelectric resonators has been improved. Based on our previous reports, the measurement range of the vibration displacement was expanded by increasing the order of the polynomial approximation in the optical interference relations. A transformation from the 2D correlations between two laser-speckle images of the resonator-driving and -resting states to the vibration displacement distributions was also developed. The performance gain of our new method, based on a combination of these two improvements and an optical hardware refinement, is demonstrated through the experimental results. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | laser speckle / correlation image / vibration displacement / piezoelectric device / mode shape / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 410, US2008-83, pp. 63-67, Jan. 2009. | |
| Paper # | US2008-83 | |
| Date of Issue | 2009-01-22 (US) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | US2008-83 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2009-01-29 - 2009-01-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2009-01-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improved system for in-plane mode shape measurement based on two-laser speckle interferometer |
| Sub Title (in English) | |
| Keyword(1) | laser speckle |
| Keyword(2) | correlation image |
| Keyword(3) | vibration displacement |
| Keyword(4) | piezoelectric device |
| Keyword(5) | mode shape |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yasuaki Watanabe |
| 1st Author's Affiliation | Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
| 2nd Author's Name | Kentaro Tachibana |
| 2nd Author's Affiliation | Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
| 3rd Author's Name | Tomoyuki Ishii |
| 3rd Author's Affiliation | Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
| 4th Author's Name | Noriyuki Imaeda |
| 4th Author's Affiliation | Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
| 5th Author's Name | Shigeyoshi Goka |
| 5th Author's Affiliation | Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
| 6th Author's Name | Takayuki Sato |
| 6th Author's Affiliation | Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
| 7th Author's Name | Hitoshi Sekimoto |
| 7th Author's Affiliation | Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
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| Speaker | Author-1 |
| Date Time | 2009-01-30 11:00:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2008-83 |
| Volume (vol) | vol.108 |
| Number (no) | no.410 |
| Page | pp.63-67 |
| #Pages | 5 |
| Date of Issue | 2009-01-22 (US) |
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