首页> 外文期刊>Measurement Techniques >MECHANICA MEASUREMENTS: DEVELOPMENT AND INVESTIGATION OF BASIC SPECIAL STANDARD OF THE UNIT OF HIGH SUBSONIC AND SUPERSONIC AIRFLOW SPEEDS. A DISCUSSION
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MECHANICA MEASUREMENTS: DEVELOPMENT AND INVESTIGATION OF BASIC SPECIAL STANDARD OF THE UNIT OF HIGH SUBSONIC AND SUPERSONIC AIRFLOW SPEEDS. A DISCUSSION

机译:机械测量:高亚音速和超音速气流单位基本特殊标准的开发和调查。讨论

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摘要

A Basic Special Standard for the unit of high subsonic and supersonic airflow speeds is developed and investigated. The standard was developed at the T-114 supersonic wind tunnel for Mach number M=0.3...4.0 (flow rates w=100..670 m/s) and two total and static pressure probes of the Zhukovsii Central Aelrohydrodynamic Institute. Computed values of the flow rates in the standard wind tunnel as well as the error of the velocity coefficients of the PD68 and PD75 pressure problems, which are transfer standards for the Basic Standard with certified veloci8ty measurement instruments are presented.
机译:制定并研究了高亚音速和超音速气流速度单位的基本特殊标准。该标准是在T-114超音速风洞中开发的,马赫数M = 0.3 ... 4.0(流速w = 100..670 m / s),并由朱可夫西中央水动力研究所设计了两个总压和静压探头。介绍了标准风洞中的流速的计算值以及PD68和PD75压力问题的速度系数的误差,它们是带有认证的速度测量仪器的基本标准的转移标准。

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