1.1 本规程描述了校准装置的构造和使用，用于证明干涉式激光成像无损轮胎检测系统的异常检测能力。行业内的常见做法是将这些系统称为剪切/全息（S/H）系统。 1.2 本标准实践适用于用于评估充气轮胎结构完整性（例如，轮胎内是否存在异常）的S/H系统。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《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 所有S/H系统都会随着时间和使用而变化。因此，需要一种用于评估S/H系统操作的校准程序。该校准过程提供了一种获得与给定尺寸异常相关联的优化干涉图像图案的方法。 5.2 使用应变块作为校准装置提供了确保S/H系统持续最佳性能的方法。应变块也可用于比较不同设施中S/H系统的性能。 5.3 每隔不超过三（3）个月，应按照本规程所述程序校准S/H系统。必要时，应对S/H系统进行调整、修理或修改，直到其能够在同一图像中观察到应变块所包含的感兴趣范围内的所有尺寸异常。

1.1 This practice describes the construction and use of a calibration device for demonstrating the anomaly detection capability of interferometric laser imaging nondestructive tire inspection system. A common practice within the industry is to refer to these systems as shearographic/holographic (S/H) systems. 1.2 This standard practice applies to S/H systems that are used for evaluating the structural integrity of pneumatic tires, (for example, presence or absence of anomalies within the tire). 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. ====== Significance And Use ====== 5.1 All S/H systems change with time and use. Therefore, a calibration procedure for evaluating the operation of an S/H system is desirable. This calibration procedure provides a method of obtaining an optimized interferometric image pattern associated with a given size anomaly. 5.2 The use of straining blocks as calibration devices provides a means for ensuring the continued optimal performance of the S/H system. Straining blocks can also be used to compare performance of S/H systems in different facilities. 5.3 At not greater than a three (3) month interval the S/H system shall be calibrated following the procedures described in this practice. When necessary, adjustments, repairs, or modifications shall be made to the S/H system until it is able to observe, in the same image, all anomalies of size within the range of interest contained in the straining blocks.