1.1 本规程推荐用于测试和测量声发射电子元件或装置的工作特性。（参见 附录X1 有关组件和单元的说明。）本规程不用于声发射仪器的常规检查，而是用于定期评估或发生故障时。当传感器存在时，除了建议标准化系统增益（使它们在通道间均衡）的方法外，本文件中未讨论传感器。 1.2 如果制造商在操作和维护手册中提供了测试和测量细节，则制造商的方法应与本实践中描述的方法结合使用。 1.3 应记录用于测试和测量声发射仪器组件或单元的方法（技术）以及此类测试和测量的结果。 文件应包括照片、截图、图表、计算和表格（如适用）。 1.4 使用计算机控制采集、存储、显示和数据分析的声发射系统可能包括波形采集以及与声发射信号相关的广泛测量参数（特征）选择。制造商为每个系统提供了规范，规定了系统的工作范围和条件。基于计算机的声发射系统的所有校准和验收测试必须使用制造商的规范作为指南。本规程不包括计算机或计算机外围设备的测试。 1.5 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。 1.6 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。 1.7 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====== 5.1 本规程提供了记录声发射系统精度和性能所需的信息。 该信息有助于参考目的，以确保仪器性能与时间和使用保持一致，并提供调整系统以保持其一致性所需的信息。 5.2 本实施规程中规定的方法既不是排他性的，也不是详尽无遗的。 5.3 困难或有疑问的仪器测量应咨询电子工程人员。 5.4 建议负责使用本规程进行仪器测量的人员应具有仪器测量方面的经验，以及进行测量所需的所有测试设备。

1.1 This practice is recommended for use in testing and measuring operating characteristics of acoustic emission electronic components or units. (See Appendix X1 for a description of components and units.) It is not intended that this practice be used for routine checks of acoustic emission instrumentation, but rather for periodic evaluation or in the event of a malfunction. The sensor is not addressed in this document other than suggesting methods for standardizing system gains (equalizing them channel to channel) when sensors are present. 1.2 Where the manufacturer provides testing and measuring details in an operating and maintenance manual, the manufacturer's methods should be used in conjunction with the methods described in this practice. 1.3 The methods (techniques) used for testing and measuring the components or units of acoustic emission instrumentation, and the results of such testing and measuring should be documented. Documentation should consist of photographs, screenshots, charts or graphs, calculations, and tabulations where applicable. 1.4 AE systems that use computers to control the collection, storage, display, and data analysis, might include waveform collection as well as a wide selection of measurement parameters (features) relating to the AE signal. The manufacturer provides a specification for each system that specifies the operating range and conditions for the system. All calibration and acceptance testing of computer-based AE systems must use the manufacturer's specification as a guide. This practice does not cover testing of the computer or computer peripherals. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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. 1.7 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 ====== 5.1 This practice provides information necessary to document the accuracy and performance of an Acoustic Emission system. This information is useful for reference purposes to assure that the instrumentation performance remains consistent with time and use, and provides the information needed to adjust the system to maintain its consistency. 5.2 The methods set forth in this practice are not intended to be either exclusive or exhaustive. 5.3 Difficult or questionable instrumentation measurements should be referred to electronics engineering personnel. 5.4 It is recommended that personnel responsible for carrying out instrument measurements using this practice should be experienced in instrumentation measurements, as well as all the required test equipment being used to make the measurements.