Capacitor measuring and detecting device
First Claim
1. A MEASURING DEVICE COMPRISING A SOURCE OF HIGH FREQUENCY ELECTRICAL ENERGY, A TRANSFORMER HAVING A PRIMARY WINDING AND A CENTER-TAPPED SECONDARY WINDING, SAID PRIMARY WINDING BEING CONNECTED TO SAID SOURCE TO RECEIVE HIGH FREQUENCY CURRENT THEREFROM, A CAPACITOR DEVICE HAVING TWO PLATES AND A GROUNDED FOIL DISPOSED BETWEEN SAID PLATES AND SUBJECT TO DEFLECTION IN RESPONSE TO A FORCE BEING MEASURED, SAID SECONDARY WINDING AND SAID CAPACITOR DEVICE CONNECTED TOGETHER TO FORM LEGS OF A BRIDGE CIRCUIT, AMPLIFIER MEANS CONNECTED BETWEEN SAID SECONDARY CENTER-TAP AND GROUND OPERABLE TO SUPPLY A VOLTAGE INDICATIVE OF THE MAGNITUDE OF SAID FORCE, A POTENTIOMETER CONNECTED ACROSS THE PRIMARY OF SAID TRANSFORMER, AND MEANS CONNECTING THE MOVABLE TAP OF SAID POTENTIOMETER TO THE CENTER-TAP OF SAID SECONDARY WINDING.
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Citations
1 Claim
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1. A MEASURING DEVICE COMPRISING A SOURCE OF HIGH FREQUENCY ELECTRICAL ENERGY, A TRANSFORMER HAVING A PRIMARY WINDING AND A CENTER-TAPPED SECONDARY WINDING, SAID PRIMARY WINDING BEING CONNECTED TO SAID SOURCE TO RECEIVE HIGH FREQUENCY CURRENT THEREFROM, A CAPACITOR DEVICE HAVING TWO PLATES AND A GROUNDED FOIL DISPOSED BETWEEN SAID PLATES AND SUBJECT TO DEFLECTION IN RESPONSE TO A FORCE BEING MEASURED, SAID SECONDARY WINDING AND SAID CAPACITOR DEVICE CONNECTED TOGETHER TO FORM LEGS OF A BRIDGE CIRCUIT, AMPLIFIER MEANS CONNECTED BETWEEN SAID SECONDARY CENTER-TAP AND GROUND OPERABLE TO SUPPLY A VOLTAGE INDICATIVE OF THE MAGNITUDE OF SAID FORCE, A POTENTIOMETER CONNECTED ACROSS THE PRIMARY OF SAID TRANSFORMER, AND MEANS CONNECTING THE MOVABLE TAP OF SAID POTENTIOMETER TO THE CENTER-TAP OF SAID SECONDARY WINDING.
Specification
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Current AssigneeRobert E. Vosteen
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Original AssigneeRobert E. Vosteen
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InventorsVosteen, Robert E.
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Application NumberUS04/414,938Time in Patent Office504 DaysField of SearchUS Class Current73/862.381CPC Class CodesG01L 19/04 Means for compensating for ...G01L 9/0072 using variations in capacit...G01L 9/12 by making use of variations...
