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Paper Abstract and Keywords
Presentation 2012-07-19 14:25
Multiplexing Techniques for Read-Out Superconductive Sensor System Based on Single Flux Quantum Circuits
Kazuki Aoki, Yuki Yamanashi, Nobuyuki Yoshikawa (YNU) SCE2012-16
Abstract (in Japanese) (See Japanese page) 
(in English) Time division multiplexing (TDM) and code division multiplexing (CDM) have been investigated for a superconductive sensor system using single flux quantum (SFQ) read-out circuits. By using SFQ binary counters, which counts the number of output SFQ signals from each sensor, the data can be multiplexed and transferred using a few connection wires from the low-temperature environment to room-temperature equipments. We have evaluated performances of the multi-channel superconductive sensor system on the basis of analog circuit simulation. Assuming a 32-channel digital SQUID magnetometer and the TDM, the number of connections and the slew rate of the input magnetic flux are estimated to be 11 and 4.0×10^9 $\phi$_{0}/s, respectively. If we employ the CDM, the slew rate can be improved up to 1.0×10^11 $\phi$_{0}/s though the number of connection is increased to 26. We have tested 2-channel digital SQUID system, which can perform the TDM by SFQ 4-bit up/down binary counters, and confirmed its correct operation.
Keyword (in Japanese) (See Japanese page) 
(in English) Superconductive Sensor / Time Division Multiplexing / Code Division Multiplexing / Digtal SQUID / SFQ / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 138, SCE2012-16, pp. 43-48, July 2012.
Paper # SCE2012-16 
Date of Issue 2012-07-12 (SCE) 
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 SCE  
Conference Date 2012-07-19 - 2012-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal processing technologies and their applications, etc. 
Paper Information
Registration To SCE 
Conference Code 2012-07-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multiplexing Techniques for Read-Out Superconductive Sensor System Based on Single Flux Quantum Circuits 
Sub Title (in English)  
Keyword(1) Superconductive Sensor  
Keyword(2) Time Division Multiplexing  
Keyword(3) Code Division Multiplexing  
Keyword(4) Digtal SQUID  
Keyword(5) SFQ  
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Keyword(7)  
Keyword(8)  
1st Author's Name Kazuki Aoki  
1st Author's Affiliation Yokohama National University (YNU)
2nd Author's Name Yuki Yamanashi  
2nd Author's Affiliation Yokohama National University (YNU)
3rd Author's Name Nobuyuki Yoshikawa  
3rd Author's Affiliation Yokohama National University (YNU)
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Speaker Author-1 
Date Time 2012-07-19 14:25:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2012-16 
Volume (vol) vol.112 
Number (no) no.138 
Page pp.43-48 
#Pages 6 
Date of Issue 2012-07-12 (SCE) 

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