Method and apparatus for detection of physical quantities, servo

Details Method and apparatus for detection of physical quantities, servo Method and apparatus for detection of physical quantities, servo

1991-01-07

1993-06-08

Ip, Paul

Electricity: motive power systems

Positional servo systems

318439, 318432, 324174, 324117H, 338 32H, 307309, 307491, G01D 500

Patent

active

052182797

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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