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ASTM E1781/E1781M-20
Standard Practice for Secondary Calibration of Acoustic Emission Sensors- 발행일 : 2020-04-01
- 발행기관 : ASTM
상세정보
| 분야 | 03.03 : 비 파괴검사 (Ⅰ) |
|---|---|
| 적용범위 | 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 separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| 국제분류(ICS)코드 | 17.140.01 : 음향 측정 및 소음 감소 일반 |
| 페이지수 | 8 |
| Edition | 20 |
이력정보
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM E1781/E1781M-20상세보기 | Standard Practice for Secondary Calibration of Acoustic Emission Sensors | 2020-04-01 | 표준 |
| 2 | ASTM E1781/E1781M-20 REDLINE상세보기 | Standard Practice for Secondary Calibration of Acoustic Emission Sensors | 2020-04-01 | 표준 |
| 3 | ASTM E1781/E1781M-19상세보기 | Standard Practice for Secondary Calibration of Acoustic Emission Sensors | 2019-07-01 | 구판 |
| 4 | ASTM E1781/E1781M-19 REDLINE상세보기 | Standard Practice for Secondary Calibration of Acoustic Emission Sensors | 2019-07-01 | 구판 |
| 5 | ASTM E1781/E1781M-13 REDLINE상세보기 | Standard Practice for Secondary Calibration of Acoustic Emission Sensors | 2013-06-01 | 구판 |
| 6 | ASTM E1781/E1781M-13상세보기 | Standard Practice for Secondary Calibration of Acoustic Emission Sensors | 2013-06-01 | 구판 |
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