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ASTM-E1781:2013 Edition

ASTM-E1781:2013 Edition

$40.63

E1781/E1781M-13 Standard Practice for Secondary Calibration of Acoustic Emission Sensors

Published By Publication Date Number of Pages
ASTM 2013 7
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ASTM E1781/E1781M-13

Historical Standard: Standard Practice for Secondary Calibration of Acoustic Emission Sensors

ASTM E1781/E1781M

Scope

1.1 This practice covers requirements for the secondary calibration of acoustic emission (AE) sensors. The secondary calibration yields the frequency response of a sensor to waves of the type normally encountered in acoustic emission work. The source producing the signal used for the calibration is mounted on the same surface of the test block as the sensor under testing (SUT). Rayleigh waves are dominant under these conditions; the calibration results represent primarily the sensor’s sensitivity to Rayleigh waves. The sensitivity of the sensor is determined for excitation within the range of 100 kHz to 1 MHz. Sensitivity values are usually determined at frequencies approximately 10 kHz apart. The units of the calibration are volts per unit of mechanical input (displacement, velocity, or acceleration).

1.2 Units—The values stated in either SI units or inch-pound units are to be regarded as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standards.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

acoustic emission; acoustic emission sensor calibration; acoustic emission sensor secondary calibration; sensor calibration

ICS Code

ICS Number Code 17.140.01 (Acoustic measurements and noise abatement in general)

DOI: 10.1520/E1781_E1781M-13

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