PIEZOELECTRIC ACCELERATION TRANSDUCER Russian patent published in 2003 - IPC

FIELD: measurement technology, design of electric, mechanical and electromechanical transmitter and methods of their attachment to examined objects. SUBSTANCE: invention refers predominantly to acceleration transducers produced on base of piezoceramic bimorphs of cantilever type, it can be employed to measure parameters of detonations in electron system controlling automobile engine and vibrations in various spheres of technology. Piezoelectric acceleration transmitter has bimorph sensitive element made fast to solid base with current leads. Key structural feature of transducer lies in fabrication of solid base from two parts interjoined rigidly. Main part carries bimorph sensitive element with current leads. Peripheral part has section half as large as area of section of main part in point of their joining, end sections of peripheral part are points of attachment of transducer. Peripheral part of base can be manufactured in the form of bar that can be S-shaped. Main part can be produced in the form of cylinder. Peripheral and main parts of base can be made monolithic as single unit. Base can be made of brass. EFFECT: reduced effect of mechanical deformations on conversion factor of transducer. 6 cl, 3 dwg, 3 tbl