1.1 系统性能验证方法将应力波发射到安装传感器的检查物品中。产生的应力波在检查物品中传播，并由传感器以类似于声发射的方式检测。 1.2 本指南描述了可用于验证声发射系统响应的方法，包括传感器、耦合剂、传感器安装装置、电缆和系统电子部件。 1.3 可使用本文件评估的声发射系统性能特征包括一些波形参数和源位置精度。 1.4 性能验证通常在开始检查之前进行。 1.5 如果怀疑系统性能可能发生了变化，可以在检查期间进行性能验证。 1.6 性能验证可在检查完成后进行。 1.7 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.8 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.9 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 声发射数据采集可能受到与电子仪器、电缆、传感器、传感器支架、耦合剂、安装传感器的检查物品、背景噪声和用户采集参数设置（例如，阈值）相关的许多因素的影响。 4.2 本指南无意取代每年（或半年）一次的仪器校准（见实践 E750 )或传感器重新认证（见实践 E1781 ). 4.3 本指南无意取代声发射仪器的常规电子评估或声发射传感器的常规再现性验证（见指南 E976 ). 4.4 本指南无意验证AE系统的最大处理能力或速度。 4.5 本指南并非旨在解决与其使用相关的所有安全问题（如有）。本指南的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 System performance verification methods launch stress waves into the examination article on which the sensor is mounted. The resulting stress wave travels in the examination article and is detected by the sensor(s) in a manner similar to acoustic emission. 1.2 This guide describes methods which can be used to verify the response of an Acoustic Emission system including sensors, couplant, sensor mounting devices, cables and system electronic components. 1.3 Acoustic emission system performance characteristics, which may be evaluated using this document, include some waveform parameters, and source location accuracy. 1.4 Performance verification is usually conducted prior to beginning the examination. 1.5 Performance verification can be conducted during the examination if there is any suspicion that the system performance may have changed. 1.6 Performance verification may be conducted after the examination has been completed. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 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. 1.9 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. ====== Significance And Use ====== 4.1 Acoustic Emission data acquisition can be affected by numerous factors associated with the electronic instrumentation, cables, sensors, sensor holders, couplant, the examination article on which the sensor is mounted, background noise, and the user's settings of the acquisition parameters (for example, threshold). 4.2 This guide is not intended to replace annual (or semi-annual) instrumentation calibration (see Practice E750 ) or sensor recertification (see Practice E1781 ). 4.3 This guide is not intended to replace routine electronic evaluation of AE instrumentation or routine reproducibility verification of AE sensors (see Guide E976 ). 4.4 This guide is not intended to verify the maximum processing capacity or speed of an AE system. 4.5 This guide 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 guide to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.