Electromechanical transducer apparatus
阅读：565发布：2021-11-14
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1. ELECTROMECHANICAL TRANSDUCER APPARATUS, PARTICULARLY ADAPTED FOR OPERATION AT ELEVATED TEMPERATURES AND PRESSURES, COMPRISING A HERMETICALLY SEALABLE RIGID HOUSING OF MAGNETICALLY PERMEABLE MATERIAL HAVING ONLY FIRST AND SECOND PARTS DETACHABLY CONNECTED TOGETHER, SAID FIRST PART INCLUDING AN INTEGRAL DIAPHRAGM PORTION FORMING ONE END WALL OF SAID HOUSING, AN ELONGATED MAGNETOSTRICTIVE TRANSDUCER ELEMENT MADE OF A MATERIAL WHICH IS OPERABLE IN THE TEMPERATURE RANGE OF 1000*F. MOUNTED AT ONE END ON THE INTERIOR SIDE OF SAID DIAPHRAGM AND HAVING ITS OTHER END FREE AND EXTENDING THEREFROM INTO THE SPACE IN SAID HOUSING, A TUBULAR MAGNETIC SHIELDING ELEMENT MOUNTED AT ONE END ON THE INNER SURFACE OF A WALL OF SAID SECOND HOUSING PART OPPOSITE SAID DIAPHRAGM AND HAVING ITS OTHER END FREE AND EXTENDING THEREFROM TOWARD SAID DIAPHRAGM A DISTANCE SUFFICIENT TO SURROUND THE MAJOR PORTION OF SAID TRANSDUCER ELEMENT, THE INNER DIAMETER DIMENSIONS OF SAID SHIELDING ELMENT BEING GREATER THAN THE OUTER DIMENSIONS OF SAID TRANSDUCER ELEMENT, AND A COIL OF WIRE HAVING AN INTERNAL DIAMETER LARGER THAN SAID OUTER DIMENSIONS SUPPORTED WITHIN SAID SHIELDING ELEMENT AND EXTENDING ALONG THE MAJOR PORTION OF THE LENGTH OF SAID TRANSDUCER ELEMENT IN COOPERATIVE RELATION WITH SAID TRANSDUCER ELEMENT FOR THE INTERCHANGE THEREWITH OF ELECTRICAL OSCILLATIONS AND MECHANICAL VIBRATIONS, WHEREBY THE MATING OF SAID FIRST AND SECOND PARTS PROVIDES A COMPLETE HOUSING FOR SAID APPARATUS AND LOCATES SAID TRANSDUCER ELEMENT WITHIN BUT OUT OF CONTACT WITH SAID COIL AND SAID SHIELDING ELEMENT.
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