DocumentCode
2947909
Title
Development of Digital FLL System for SQUID Using Double Counter Method
Author
Oyama, D. ; Kobayashi, K. ; Yoshizawa, M. ; Yoshinori, U.
Author_Institution
Iwate Univ., Iwate
fYear
2006
fDate
8-12 May 2006
Firstpage
814
Lastpage
814
Abstract
Digitally controlled flux-locked loop (FLL) system using two counters (double-counter method) is proposed. In conclusion, the double-counter method increases the dynamic range and slew rate of the very low cost D-FLL system. It was also showed the characteristic of the D-FLL system by measuring magnetocardiogram waveform in a large magnetic noise condition.
Keywords
SQUIDs; magnetocardiography; SQUID; digital FLL system; double counter method; flux-locked loop system; magnetic noise; magnetocardiogram waveform; Counting circuits; Digital signal processors; Dynamic range; Feedback loop; Frequency locked loops; Magnetic flux; Magnetic noise; Microcontrollers; Noise measurement; SQUIDs;
fLanguage
English
Publisher
ieee
Conference_Titel
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location
San Diego, CA
Print_ISBN
1-4244-1479-2
Type
conf
DOI
10.1109/INTMAG.2006.374845
Filename
4262247
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