Arrangement for testing the material of formed parts
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United States of America Patent
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Mar 17, 1998
Grant Date -
N/A
app pub date -
Sep 11, 1996
filing date -
Sep 15, 1995
priority date (Note) -
Expired
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Abstract
For a comparative material testing of similar formed parts based on their dynamic behaviour under acoustic excitation vibrations, in order to obtain clear-cut information about the material properties it is necessary to assure constant excitations of the vibration generator and a constant pressing force when coupling this to the object being tested. This is accomplished by using a piezoelectric actuator in an assembly unit with an electromechanical sensor and a coupling element, whereby the excitation voltages of the actuator are monitored and its vibrations passing into the formed part are registered by the sensor.
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