1.1 本标准为确定光纤应变计（FOSG）性能特征提供了统一的实践。 1.2 这些实践适用于各种类型的FOSG询问技术。用于询问的技术包括但不限于分布式询问技术(例如，光频域反射计)和单点技术(例如，光纤布拉格光栅、非本征法布里-珀罗干涉仪)。 1.3 这些实践规定了确定连续FOSG和离散FOSG的测量不确定度和验证空间测量分辨率的程序。编写它们是为了允许适当的信号调节器与正在验证的FOSG技术一起使用。 1.4 这些实践仅适用于静态测试条件下FOSG的校准和验证。这些实践不得应用于动态或高速应变应用中，也不得假定根据这些测试实践进行的校准或验证结果对动态或高速应变测量有效。 1.5 这些实践包括FOSG的拉伸和压缩测试技术。如果系统能够在可验证范围之外运行，则系统仅在测试范围内符合本标准。 1.6 这些实践没有定义或排名FOSG的性能水平，而是验证制造商声明的性能水平。 1.7 关于这些实践的执行的某些细节留给用户（例如，数据采样率、停留时间、热沉降时间、样本批量大小）。用户有责任确定和报告这些细节，以便可以复制结果。 1.8 单位- 以SI单位表示的值将被视为标准值。SI单位后括号中给出的值仅供参考，不被视为标准值。 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》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 5.1 FOSG用于测量应用，其中衬底的应变或两个基准之间的位移是感兴趣的测量对象。FOSG的性能参数受FOSG的材料和光学性质以及用于询问FOSG的相应光信号调节器两者的影响。这些做法详细说明了应报告的最低限度信息。

1.1 This standard provides uniform practices for the determination of Fiber Optic Strain Gage (FOSG) performance characteristics. 1.2 These practices apply to various types of FOSG interrogation technologies. Technologies used for interrogation include but are not limited to distributed interrogation techniques (for example, optical frequency domain reflectometry) and single-point techniques (for example, fiber Bragg gratings, extrinsic Fabry-Perot interferometers). 1.3 These practices specify procedures for determining the measurement uncertainty and verification of the spatial measurement resolution of both continuous FOSGs and discrete FOSGs. They are written to allow for the appropriate signal conditioner to be used with the FOSG technology being verified. 1.4 These practices only apply to the calibration and verification of FOSGs in static test conditions. These practices shall not be applied as written in dynamic or high-speed strain applications, nor shall the results of calibrations or verifications performed in accordance with these test practices be assumed valid for dynamic or high-speed strain measurements. 1.5 These practices include techniques for tension and compression testing of the FOSG. In cases where the system is capable of operating outside of the range that can be verified, the system only complies with this standard inside the range over which it was tested. 1.6 These practices do not define or rank the performance level of the FOSG but instead verify the performance level stated by the manufacturer. 1.7 Certain details regarding the execution of these practices are left to the user (for example, data sampling rate, dwell time, thermal settling time, specimen batch size). It is the responsibility of the user to determine and report these details such that the results could be replicated. 1.8 Units— The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 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 ====== 5.1 FOSGs are used for measurement applications where the strain of a substrate or displacement between two datums is the measurand of interest. The performance parameters of the FOSG are affected by both the material and optical properties of the FOSG and the respective optical signal conditioner used to interrogate the FOSG. These practices detail the minimum information that shall be reported.