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ASTM E1781

2008 Edition, December 15, 2008

Complete Document

Standard Practice for Secondary Calibration of Acoustic Emission Sensors

Includes all amendments and changes through Change/Amendment , December 15, 2008


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Superseded By: ASTM E1781/E1781M

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Additional Comments:
W/D S/S BY ASTM E1781/E1781M
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Product Details:

  • Revision: 2008 Edition, December 15, 2008
  • Published Date: December 15, 2008
  • Status: Superseded By:
  • Superseded By: ASTM E1781/E1781M
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 7
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

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).

The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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.