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    Acceleration sensing apparatus
    3.
    发明授权
    Acceleration sensing apparatus 失效
    加速感应装置

    公开(公告)号：US3587326A

    公开(公告)日：1971-06-28

    申请号：US3587326D

    申请日：1968-04-24

    Applicant: SINGER GENERAL PRECISION

    Inventor： RIORDAN HUGH E ,  PARKER BERNARD ,  WEISBORD LEON

    IPC: G01P15/04 ,  G01P15/12 ,  G01P15/08

    CPC classification number: G01P15/04 ,  G01P15/121

    Abstract: AN APPARATUS FOR DETECTING MAXIMUM ACCELERATIONS AND INCLUDING A PAIR OF ADJACENT CHAMBERS AND A TUBE IN COMMUNICATION WITH ONE OF THE CHAMBERS WHICH IS INITIALLY FILLED WITH A SUBSTANTIALLY INCOMPRESSIBLE FLUID. A PROOF MASS IS DISPOSED IN THE OTHER OF THE CHAMBERS AND MAY BE LATCHED THERE. IN THE UNLATCHED CONDITION, THE PROOF MASS RESPONDS TO ACCELERATIONS TO PROJECT INTO THE ONE CHAMBER. SUCH PROJECTION FORCES DISPLACED LIQUID FROM THE ONE CHAMBER INTO THE TUBE PAST A CHECK VALVE ALLOWING SUCH FLOW. THE TUBE CONTAINS A METALLIC BEAD WHICH IS PUSHED BY THE FLUID FLOWING IN THE TUBE AND THUS, THE POSITION OF THE BEAD ALONG THE TUBE DEPENDS ON THE AMOUNT OF FLUID DISPLACED. THE CHECK VALVE PREVENTS REVERSE FLOW OF FLUID AND THE BEAD IS HELD IN ITS MAXIMUM DISPLACEMENT POSITION. FOR DETECTING THE POSITION OF THE BEAD ALONG THE TUBE, THE TUBE INTERIOR HAS A RESISTIVE ELEMENT AND A CONDUCTIVE ELEMENT, EACH EXTENDING AXIALLY ALONG THE TUBE AND BEING INSULATED FROM EACH OTHER EXCEPT BY THE MOVABLE BEAD. AN EFFECTIVE POTENTIOMETER IS THUS FORMED WHICH, WITH EXTERNAL CONNECTIONS, ENERGIZATION AND DETECTING MEANS CAN DETERMINE THE POSITION OF THE BAD AND, THEREFORE, ALSO THE ACCELERATION. TO HOLD THE BEAD FIRMLY AGAINST THE LIQUID, THE END OF THE TUBE REMOTE FROM THE CHECK VALVE, COMMUNICATES WITH A CLOSED CHAMBER CONTAINING A GAS UNDER SUFFICIENT PRESSURE TO FORCE THE BEAD ALONG THE TUBE.

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