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Paper Abstract and Keywords
Presentation 2023-07-27 15:05
Development of viscosity measurement method under extreme low-shear rate
Mika Iga, Satoshi Ishida (Nippon Paint CS), Keiji Sakai (IIS, The Univ. of Tokyo) US2023-20
Abstract (in Japanese) (See Japanese page) 
(in English) We have developed a measurement technique using the EMS (Electro Magnetically Spinning) method to measure the viscosity of highly viscous fluids at very low shear rates.
The EMS method uses electromagnetic interaction to generate a driving torque, which enables control at low shear rates that could not be achieved with a conventional rheometer, and viscosity can be precisely measured by detecting the motion of the probe. In this study, based on the floating EMS method, which can measure low viscosity liquids at low shear rates with high accuracy, we designed a device that can apply higher torque accurately and can detect minute rotations. As a result, we were able to measure the viscosity of 100 Pa・s liquid at a shear rate of 10-8sec-1.
Keyword (in Japanese) (See Japanese page) 
(in English) Viscosity / Shear rate / EMS method / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 135, US2023-20, pp. 15-18, July 2023.
Paper # US2023-20 
Date of Issue 2023-07-20 (US) 
ISSN Online edition: ISSN 2432-6380
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 US2023-20

Conference Information
Committee US  
Conference Date 2023-07-27 - 2023-07-28 
Place (in Japanese) (See Japanese page) 
Place (in English) West Japan General Exhibition Center Annex 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Material characterization, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2023-07-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of viscosity measurement method under extreme low-shear rate 
Sub Title (in English)  
Keyword(1) Viscosity  
Keyword(2) Shear rate  
Keyword(3) EMS method  
1st Author's Name Mika Iga  
1st Author's Affiliation Nippon paint corporate solutions Co., Ltd.; (Nippon Paint CS)
2nd Author's Name Satoshi Ishida  
2nd Author's Affiliation Nippon paint corporate solutions Co., Ltd.; (Nippon Paint CS)
3rd Author's Name Keiji Sakai  
3rd Author's Affiliation Institute of Industrial Science, The University of Tokyo (IIS, The Univ. of Tokyo)
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Speaker Author-1 
Date Time 2023-07-27 15:05:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2023-20 
Volume (vol) vol.123 
Number (no) no.135 
Page pp.15-18 
Date of Issue 2023-07-20 (US) 

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