Electricity: measuring and testing – Magnetic – Magnetometers
Reexamination Certificate
2006-04-11
2006-04-11
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Magnetic
Magnetometers
C324S253000, C073S861110
Reexamination Certificate
active
07026812
ABSTRACT:
A magnetic sensor includes a magnetic sensitive member11including an amorphous wire, a detection coil12wound around the magnetic sensitive member11, and a sample-and-hold circuit for detecting a voltage induced in the amorphous wire11when a pulse current is interrupted. The sample-and-hold circuit has a sample-and-hold unit B31and a delay circuit. The sample-and-hold unit B31includes an electronic switch S31, a capacitor C32, a resistor R32, a resistor R33, and a high-input amplifier A31. The delay circuit includes a resistor R31connected to a control terminal of the electronic switch S31and a capacitor C31.
REFERENCES:
patent: 2000-258517 (2000-09-01), None
patent: 2001-133529 (2001-05-01), None
patent: 2003-121517 (2003-04-01), None
Honkura Yoshinobu
Koutani Yoshiaki
Mori Masaki
Sumi Kazumasa
Yamamoto Michiharu
Aichi Steel Corporation
LeDynh Bot
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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