Light weight, precision linear accelerometer

Claim 1

A LINEAR ACCELEROMETER COMPRISED OF ANNULARLY SHAPED FUNCTIONING PARTS THAT ARE COAXIALLY ASSEMBLED COMPRISING: A CYLINDRICALLY SHAPED HOLLOW HOUSING, AN ANNULAR PERMANENT MAGNET WITHIN THE HOUSING, THE PERMANENT MAGNET BEING SO MAGNETIZED THAT THE MAGNETIC LINES OF FORCE THROUGH THE INTERIOR OF SAID MAGNET ARE LOCATED IN PLANES SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE PERMANENT MAGNET, AN ANNULAR PROOF MASS STRUCTURE CONCENTRIC WITHIN THE CENTRAL OPENING OF THE ANNULAR PERMANENT MAGNET, SAID PROOF MASS BEING FLEXIBLY SUPPORTED FOR DISPLACEMENT ONLY ALONG THE CONCENTRIC AXIS, SAID PROOF MASS SUPPORTING AN ANNULAR FORCE WINDING CONCENTRIC WITH SAID CONCENTRIC AXIS FOR INTERACTION WITH SAID PERMANENT MAGNET, AND SUPPORTING AN ANNULAR DISPLACEMENT TRANSDUCER COIL CONCENTRIC WITH SAID FORCE WINDING AND DISPOSED INSIDE THEREOF, A PAIR OF ANNULAR STATOR PICKOFF COILS SPACED ON OPPOSITE SIDES OF SAID ANNULAR DISPLACEMENT TRANSDUCER COIL AND AFFIXED WITHIN SAID HOUSING, SAID STATOR PICKOFF COILS BEING COAXIAL WITH SAID ANNULAR DISPLACEMENT TRANSDUCER COIL, AND MAGNETIC SHIELDING MEANS FOR PREVENTING FLUX INTERACTION BETWEEN THE TORQUE COILS AND THE PERMANENT MAGNET AND THE ANNULAR DISPLACEMENT TRANSDUCER COIL AND FIXED PICKOFF COILS, SAID FLEXIBLE SUPPORTING MEANS FOR SAID PROOF MASS INCLUDING A PAIR OF ANNULAR FLAT SPRINGS SANDWICHING SAID PROOF MASS AND BEING SUPPORTED BY SAID HOLLOW HOUSING AT THE PERIPHERAL EDGES OF THE FLAT SPRINGS, A TRANSFORMER CORE MOUNTED WITHIN THE ANNULAR DISPLACEMENT PICKOFF COIL AND THE ANNULAR STATOR PICKOFF COILS, COAXIALLY THEREWITH, AND MEANS LONGITUDINALLY ADJUSTABLY SUPPORTING SAID TRANSFORMER CORE, SAID TRANSFORMER CORE BEING OPERATIVE TO IMPROVE THE ELECTRICAL COUPLING BETWEEN THE ANNULAR DISPLACEMENT PICKOFF COIL, AND THE STATOR PICKOFF COILS.