STRESS GAUGE HAVING AN ACOUSTIC RESONANT STRUCTURE AND SENSOR FOR AT LEAST ONE PHYSICAL PARAMETER USING SUCH STRESS GAUGE

STRESS GAUGE HAVING AN ACOUSTIC RESONANT STRUCTURE AND SENSOR FOR AT LEAST ONE PHYSICAL PARAMETER USING SUCH STRESS GAUGE

The invention relates to a stress gauge of the type having an acoustic resonant structure, including a piezoelectric transducer (10) connected to a holder (20), the holder (20) including opposite the piezoelectric transducer (10) an imbedded reflecting portion (40). The imbedded reflecting portion (...

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Hauptverfasser: BALLANDRAS, SYLVAIN JEAN, MASSON, JÉRÉMY
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRICITY
INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
PHYSICS
TESTING
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creator BALLANDRAS, SYLVAIN JEAN
MASSON, JÉRÉMY
description The invention relates to a stress gauge of the type having an acoustic resonant structure, including a piezoelectric transducer (10) connected to a holder (20), the holder (20) including opposite the piezoelectric transducer (10) an imbedded reflecting portion (40). The imbedded reflecting portion (40) reflects the volume acoustic waves generated by the piezoelectric transducer (10) when it is excited according to a harmonic mode of the structure and propagating into said holder (20), the reflecting portion (40) being arranged at a distance from the piezoelectric transducer (10) such that the integral of the stress on the propagation distance of the volume acoustic waves up to their reflection is different from zero.
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language eng ; fre ; ger
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subjects ELECTRICITY
INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
PHYSICS
TESTING
title STRESS GAUGE HAVING AN ACOUSTIC RESONANT STRUCTURE AND SENSOR FOR AT LEAST ONE PHYSICAL PARAMETER USING SUCH STRESS GAUGE
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