| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2008-12-19 13:30 Practical configuration and design of liquid level meter using the flexural vibrations in a rod Kentaro Nakamura, Daisuke Koyama, Sadayuki Ueha (Tokyo Tec), Kazumitsu Nukui (JAF), Kenzo Ikeda (Taiyo Nissan)  US2008-67 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Resonance frequency of a flexural vibrating rod is lowered by immersing the rod into fluid because of the mass effect of the fluid acting on the rod. The authors have previously proposed to utilize the phenomena for liquid level meter. This report presents the development of electronic circuits for extracting the motional current and tracking the resonance frequency using the PLL (phase-locked-loop) scheme. The working principle of measuring liquid level, practical configuration of the vibrating rod, PLL circuit and the performance test as a level meter are described in this report. The rod is mounted in a screw to install into a shielded liquid gas cylinder. Two rectangular piezoelectric elements are bonded at the one end of the rod, which is located outside the cylinder and excite the flexural vibration in the rod via the screw. The phase of the motional current detected by a bridge circuit using an operation amplifier is compared with the driving voltage so that the frequency of a voltage-controlled oscillator may track the resonance of the rod. The measurement characteristics of the stainless steel rods of 475 mm in length and 6 mm in diameter are evaluated. Error was 1-2% from the linear line. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Level meter / Water level meter / Flexural vibration / Resonance frequency / Phase locked loop / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 364, US2008-67, pp. 1-6, Dec. 2008. | |
| Paper # | US2008-67 | |
| Date of Issue | 2008-12-12 (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 | US2008-67 |
|
| Conference Information | |
| Committee | US |
| Conference Date | 2008-12-19 - 2008-12-19 |
| 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 | 2008-12-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Practical configuration and design of liquid level meter using the flexural vibrations in a rod |
| Sub Title (in English) | |
| Keyword(1) | Level meter |
| Keyword(2) | Water level meter |
| Keyword(3) | Flexural vibration |
| Keyword(4) | Resonance frequency |
| Keyword(5) | Phase locked loop |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kentaro Nakamura |
| 1st Author's Affiliation | Tokyo Institute of Technology (Tokyo Tec) |
| 2nd Author's Name | Daisuke Koyama |
| 2nd Author's Affiliation | Tokyo Institute of Technology (Tokyo Tec) |
| 3rd Author's Name | Sadayuki Ueha |
| 3rd Author's Affiliation | Tokyo Institute of Technology (Tokyo Tec) |
| 4th Author's Name | Kazumitsu Nukui |
| 4th Author's Affiliation | Japan Applied Flow (JAF) |
| 5th Author's Name | Kenzo Ikeda |
| 5th Author's Affiliation | Taiyo Nippon Sanso Co (Taiyo Nissan) |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2008-12-19 13:30:00 |
| Presentation Time | 30 minutes |
| Registration for | US |
| Paper # | US2008-67 |
| Volume (vol) | vol.108 |
| Number (no) | no.364 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2008-12-12 (US) |
[Return to Top Page]