1.1用于进行气象测量的传感器系统可在环境室或风洞中进行实验室精度测试，但无法完全模拟自然暴露。大气量在时间和空间上是连续变化的；因此，不可能重复测量实施规程E177要求的相同数量以确定精度。本规程提供了两个测量系统在确定其操作可比性时使用的暴露、数据采样和处理的标准程序 (1, 2). 1.2提供的程序产生可用于统计分析的测量样本。可比性是根据指定的统计参数定义的。其他统计参数可通过其他ASTM标准或统计手册中描述的方法计算 (3) . 1.3如果两个测量系统相同，即相同品牌、型号和制造商，则操作可比性称为功能精度。 1.4气象测定通常需要同时测量以确定大气量的空间分布，或定期重复测量以确定时间分布，或两者兼而有之。在某些情况下，可以使用许多相同的系统，但在其他情况下，可以使用混合的仪表系统。本文描述的程序用于确定进行相同测量的相似或不同系统的可变性。 1.5 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和健康实践，并确定监管限制的适用性。 （有关更具体的安全预防信息，请参阅8.1。）

1.1 Sensor systems used for making meteorological measurements may be tested for laboratory accuracy in environmental chambers or wind tunnels, but natural exposure cannot be fully simulated. Atmospheric quantities are continuously variable in time and space; therefore, repeated measurements of the same quantities as required by Practice E177 to determine precision are not possible. This practice provides standard procedures for exposure, data sampling, and processing to be used with two measuring systems in determining their operational comparability (1, 2). 1.2 The procedures provided produce measurement samples that can be used for statistical analysis. Comparability is defined in terms of specified statistical parameters. Other statistical parameters may be computed by methods described in other ASTM standards or statistics handbooks (3) . 1.3 Where the two measuring systems are identical, that is, same make, model, and manufacturer, the operational comparability is called functional precision. 1.4 Meteorological determinations frequently require simultaneous measurements to establish the spatial distribution of atmospheric quantities or periodically repeated measurement to determine the time distribution, or both. In some cases, a number of identical systems may be used, but in others a mixture of instrument systems may be employed. The procedures described herein are used to determine the variability of like or unlike systems for making the same measurement. 1.5 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 and health practices and determine the applicability of regulatory limitations prior to use. (See 8.1 for more specific safety precautionary information.)