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Paper Abstract and Keywords
Presentation 2013-07-29 00:20
High accuracy measurement of low viscosity using Electromagnetically Revolving System
Yuhei Ohta, Yusuke Matsuura, Taichi Hirano, Keiji Sakai (Univ. of Tokyo) US2013-23
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, We developed new method to measure viscosity, ElectroMagnetically Spinning (EMS) viscometer. In this method, a metal sphere is used as a probe and driving torque is applied by electromagnetical interaction. Though the EMS viscometer achieved high accuracy in low viscosity measurement by reducing mechanical friction compared with rotational viscometer, the rotational friction between spinning sphere and test tube can be the cause of error. In order to attain further improvement in accuracy, we developed new apparatus of viscosity measurement, called Electromagnetically Revolving (EMR) viscometer. In this system, a metal sphere, used as a probe, rolls and revolves around a circular orbit under a rotating magnetic field, and the revolution period of the sphere gives the viscosity. We succeeded to improve accuracy by reducing mechanical friction because the rolling friction shows lower value than the rotational friction. To get the optimal condition for measurement, examined the form of schale and magnet, radius and height from the magnet of circular orbit. In addition, the application to viscosity measurement of ethanol solutions is also shown.
Keyword (in Japanese) (See Japanese page) 
(in English) Low viscosity measurement / Non-contact viscosity measurement / EMS Viscometer / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 167, US2013-23, pp. 5-8, July 2013.
Paper # US2013-23 
Date of Issue 2013-07-22 (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 US2013-23

Conference Information
Committee US  
Conference Date 2013-07-29 - 2013-07-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Chikushi Campus, Kyushu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Material Proparty, General 
Paper Information
Registration To US 
Conference Code 2013-07-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) High accuracy measurement of low viscosity using Electromagnetically Revolving System 
Sub Title (in English)  
Keyword(1) Low viscosity measurement  
Keyword(2) Non-contact viscosity measurement  
Keyword(3) EMS Viscometer  
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1st Author's Name Yuhei Ohta  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
2nd Author's Name Yusuke Matsuura  
2nd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
3rd Author's Name Taichi Hirano  
3rd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
4th Author's Name Keiji Sakai  
4th Author's Affiliation The University of Tokyo (Univ. of Tokyo)
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Speaker Author-1 
Date Time 2013-07-29 00:20:00 
Presentation Time 20 minutes 
Registration for US 
Paper # US2013-23 
Volume (vol) vol.113 
Number (no) no.167 
Page pp.5-8 
#Pages 4 
Date of Issue 2013-07-22 (US) 

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