Method and apparatus for detection of physical quantities, servomotor system utilizing the method and apparatus and power steering apparatus using the servomotor system
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United States of America Patent
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Jun 8, 1993
Grant Date -
N/A
app pub date -
Jan 7, 1991
filing date -
Jan 8, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an apparatus of detecting an environmental physical quantity such as magnetism and temperature by utilizing a sensitive element having an internal, electrical physical quantity which changes as the environmental physical quantity changes, an external operator element is provided which acts, when the environmental physical quantity acting on the sensitive element changes, a physical quantity corresponding to the change on the sensitive element, an electrical quantity supplied to generate in the external operator a physical quantity corresponding to the change is detected, and the environmental physical quantity is detected from the electrical quantity to provide a detection signal devoid of hysteresis and 'depression'.
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