Method for manufacturing a sound transducer for a field device of automation technology
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United States of America Patent
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Aug 13, 2019
Grant Date -
Jan 4, 2018
app pub date -
Dec 7, 2015
filing date -
Jan 19, 2015
priority date (Note) -
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Abstract
The present disclosure relates to a method for manufacturing an ultrasonic transducer by exciting the sound wave via an electromechanical transducer disposed on a sensor body, determining a current propagation velocity of the sound wave on an exit surface of the sensor body, determining the difference between the current propagation velocity and the desired propagation velocity of the sound wave on the exit surface, determining difference between speed of sound in the sensor body and a desired speed of sound, removing material in the region of the exit surface of the sensor body, wherein the remaining material is dimensioned such that the current propagation speed of the sound wave on the exit surface of the sensor body, and/or the delay caused by the speed of sound in the sensor body, at least approximately agrees with the desired propagation speed of the sound wave on the exit surface.
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