Arrangement for compensating thermal characteristics of sensor

Details Arrangement for compensating thermal characteristics of sensor Arrangement for compensating thermal characteristics of sensor

1995-06-01

1996-05-14

Chilcot, Richard

Measuring and testing

Dynamometers

Responsive to torque

73862333, G01L 302

Patent

active

055157360

ABSTRACT:
An arrangement for compensating the thermal characteristics of a sensor including a core movable from a neutral position in two directions along a line and two detecting coils symmetrically disposed along the line with the neutral position placed at the center of symmetry, in which sensor a change in the inductance of the two detecting coils due to the movement thereof is electrically detected, the arrangement being adapted so that the numbers of wire turns in the two detecting coils are set different to compensate a mechanically produced change in the thermal characteristics of the sensor. The arrangement allows a mechanical positional difference between the detecting coils and the core due to a temperature change to be compensated and an output voltage drift due to a temperature change to be reduced, thus increasing sensor accuracy.

REFERENCES:
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patent: 4876899 (1989-10-01), Strott et al.
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patent: 4954776 (1990-09-01), Husher
patent: 4972728 (1990-11-01), Yoshimura et al.
patent: 4979399 (1990-12-01), Klauber et al.
patent: 5307690 (1994-05-01), Hanazawa
patent: 5394760 (1995-03-01), Persson et al.
patent: 5431063 (1995-07-01), Yasui

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