Title:
DEVICE FOR MEASURING PHYSICAL QUANTITY, AND DEVICE FOR MEASURING MAGNETISM
Document Type and Number:
Japanese Patent JP3548757
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To sufficiently enlarge both a passing area gain and a band width and to provide signal components in plural different bands at the same time, so as to enhance a dynamic range and measuring sensitivity of a measured signal and to output the signal component of a desirable band concurrently from an integrator in each stage.
SOLUTION: This magnetism measuring device 100 is provided with a magnetic sensor 1 having a detection characteristic nonlinear with respect to magnetism, integrators 3-1, 3-2, 3-3 for conducting multiple-integration of amplified signals of magnetism detection currents Isensor output from the sensor 1, in order, to output magnetism-measured signals Out 1, Out 2, Out 3, feedback resistances R1, R2, R3 and feedback coil 4.
Inventors:
Yoshiaki Adachi
Application Number:
JP31733999A
Publication Date:
July 28, 2004
Filing Date:
November 08, 1999
Export Citation:
Assignee:
Kanazawa Institute of Technology
International Classes:
G01R33/02; (IPC1-7): G01R33/02
Domestic Patent References:
| JP10107588A | ||||
| JP7312555A | ||||
| JP784018A |
Attorney, Agent or Firm:
Ari Chika Genshiro
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