Electricity: measuring and testing – Magnetic – Displacement
Patent
1978-07-17
1980-02-19
Rolinec, Rudolph V.
Electricity: measuring and testing
Magnetic
Displacement
336134, 336135, G01R 3300
Patent
active
041896742
ABSTRACT:
A signal transducing means for receiving input signals and delivering output signals comprising a bistable magnetic device which alters its magnetic state when the density of magnetic flux to which it is subject passes through a predetermined value, and detecting means providing an output signal responsive to a change in magnetic state of the bistable device. A conducting means for magnetic flux subjects the bistable magnetic device to conducted magnetic flux and comprises a first portion providing a path of high permeability and a second portion providing a path having a permeance which is alterable in response to input signals for varying the reluctance of the conducting means and the density of magnetic flux to which said bistable device is subject. An energizing means provides an alternating magnetic field which induces magnetic flux in the conducting means and provides a flux density which varies through the predetermined value for altering the state of the bistable device to provide an output signal by the detecting means which is controlled by the variation of reluctance of the conducting means. A signal processing means which receives signals from the energizing means and from the detecting means provides output signals responsive to the received input signals.
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Rolinec Rudolph V.
Snow Walter E.
Trachtman Jacob
TRW Inc.
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