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BSI 21/30419754 DC:2021 Edition

BSI 21/30419754 DC:2021 Edition

$13.70

BS ISO 24543. Non-destructive testing. Acoustic emission testing. Verification of the receiving sensitivity spectra of piezoelectric acoustic emission sensors

Published By Publication Date Number of Pages
BSI 2021 61
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This document specifies a method for the determination of the receiving sensitivity spectra of a piezoelectric acoustic emission sensor, in absolute units of volts output per motion input, whereby the motion can be particle displacement (e.g. in nanometres) or particle velocity (e.g. in millimetres per second) over a frequency range used for acoustic emission testing, from 20 kHz to about 1,5 MHz, whereby the sensor is stimulated by a motion pulse in normal direction to the sensor’s face from a directly coupled piezoelectric transmitter.

This document also specifies a method for the determination of the transmitting sensitivity spectrum of a piezoelectric transmitter in absolute units, e.g. in nanometres output per volt input, by measuring both, the particle displacement pulse over the transmitter’s active face and the transmitter’s input voltage spectrum, using a scanning laser vibrometer.

This document does not include the known cancellation effects on a sensor’s response, when the angle of incidence differs from normal (90°) or when the length of the wave passing across the sensor’s sensitive face is shorter than about 10 times the dimension of the sensor’s sensitive face.

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BSI 21/30419754 DC
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