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On Flux Reversal in Amorphous-Core Multivibrator Bridge Circuits for Sensors

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3 Author(s)
Mohri, K. ; Kyushu Institute of Technology. ; Shigematsu, S. ; Yoshino, K.

Amorphous-core multivibrator bridge circuit systems were studied in single-core and in double-core systems. When the length of the amorphous wire is varied in the range 80 mm to 10 mm, the one-core system detection sensitivity showed small variation in the range 8.5 mV/Oe to 7 mV/Oe, while in the two-core case the sensitivity was high and the variation was 110 mV/Oe to 22 mV/Oe. Zero drift at amorphous wire length of 10 mm is very marked in the one-core system, but magnetic annealing results in stability being reached within 80 min after the power is turned on. In the two-core case stability is reached with 10 min after power is supplied.

Published in:

Magnetics in Japan, IEEE Translation Journal on  (Volume:2 ,  Issue: 6 )