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Paper Abstract and Keywords
Presentation 2012-05-25 15:50
An experimental study on an optical measurement system for damages on contact surfaces (II)
Keisuke Takahashi, Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2012-6
Abstract (in Japanese) (See Japanese page) 
(in English) For the purpose of realizing, during switching operations, observation and evaluation of growth processes of a crater and/or a pip to be formed on contact surfaces, an optical measurement system of contact surface damages conducting observation from two different points of view and employing evaluation by way of an optical cross-section method is being constructed. It has become possible to observe changes of a crater shape on a cathode surface as well as changes in a mating anode surface profile (growth of a pip) during switching operations. However, satisfactory reliabilities including preciseness of numerical measurement data have not yet been confirmed. In this paper, Ag contacts were operated to conduct the 50,000 break operations of an inductive DC14V-2A load current, and changes of the mating contact surfaces were observed and evaluated with the system. After the 50,000 operations, damages formed on the contact surfaces were evaluated with a scanning laser microscope, and the results were compared with those obtained by the system.
Keyword (in Japanese) (See Japanese page) 
(in English) optical cross-section method / electrical contacts / arc / crater / material transfer / erosion / laser microscope /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 61, EMD2012-6, pp. 27-30, May 2012.
Paper # EMD2012-6 
Date of Issue 2012-05-18 (EMD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee EMD  
Conference Date 2012-05-25 - 2012-05-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Bunka Gakuen Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2012-05-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An experimental study on an optical measurement system for damages on contact surfaces (II) 
Sub Title (in English)  
Keyword(1) optical cross-section method  
Keyword(2) electrical contacts  
Keyword(3) arc  
Keyword(4) crater  
Keyword(5) material transfer  
Keyword(6) erosion  
Keyword(7) laser microscope  
Keyword(8)  
1st Author's Name Keisuke Takahashi  
1st Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Science and Technology)
2nd Author's Name Makoto Hasegawa  
2nd Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Science and Technology)
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Speaker Author-1 
Date Time 2012-05-25 15:50:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2012-6 
Volume (vol) vol.112 
Number (no) no.61 
Page pp.27-30 
#Pages 4 
Date of Issue 2012-05-18 (EMD) 

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