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Paper Abstract and Keywords
Presentation 2014-12-11 14:25
Electrical Resonance by the Actuator's Insufficient Grounding and the Resonance Noise Invasion onto Read Signal Path by the Noise Pick-up Sensitivity of the Read Head
Nobumasa Nishiyama, Kazuhiro Nagaoka (HGST), Tatemi Ido (Hitachi), Yuji Soga (HGST) MR2014-31
Abstract (in Japanese) (See Japanese page) 
(in English) Actuator’s insufficient grounding was verified on phenomenon and interference. Results show capacitance was generated between comb and pivot of the actuator. The capacitance and the inductance of the Flex trace generate the resonance on the ground. On the other hand, the noise overrides on the Preamp signal or power. It vibrates the ground resonance through Preamp ground. As the interference, the bias of the read head is vibrated by the noise. If the read head had high noise sensitivity, then common mode noise would change to differential mode noise, and invade into read path, and interfere with the read signal.
Keyword (in Japanese) (See Japanese page) 
(in English) Actuator-grounding / Slider-grounding / Common Mode Noise / Noise Sensitivity / Electrical Resonance / / /  
Reference Info. IEICE Tech. Rep., vol. 114, Dec. 2014.
Paper #  
Date of Issue 2014-12-04 (MR) 
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 MR2014-31

Conference Information
Committee MRIS ITE-MMS  
Conference Date 2014-12-11 - 2014-12-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing, etc. 
Paper Information
Registration To MRIS 
Conference Code 2014-12-MR-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Electrical Resonance by the Actuator's Insufficient Grounding and the Resonance Noise Invasion onto Read Signal Path by the Noise Pick-up Sensitivity of the Read Head 
Sub Title (in English)  
Keyword(1) Actuator-grounding  
Keyword(2) Slider-grounding  
Keyword(3) Common Mode Noise  
Keyword(4) Noise Sensitivity  
Keyword(5) Electrical Resonance  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Nobumasa Nishiyama  
1st Author's Affiliation HGST Japan, Ltd. (HGST)
2nd Author's Name Kazuhiro Nagaoka  
2nd Author's Affiliation HGST Japan, Ltd. (HGST)
3rd Author's Name Tatemi Ido  
3rd Author's Affiliation Hitachi Ltd. (Hitachi)
4th Author's Name Yuji Soga  
4th Author's Affiliation HGST Japan, Ltd. (HGST)
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Speaker Author-1 
Date Time 2014-12-11 14:25:00 
Presentation Time 25 minutes 
Registration for MRIS 
Paper # MR2014-31 
Volume (vol) vol.114 
Number (no) no.355 
Page pp.17-21 
#Pages 5 
Date of Issue 2014-12-04 (MR) 

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