Pavlenko A V, Mokrushin S S, Tyaktev A A, Anikin N B
Federal State Unitary Enterprise "Russian Federal Nuclear Center-Zababakhin All-Russia Research Institute of Technical Physics", Vasilyev Street 13, Chelyabinsk Region, Snezhinsk 456770, Russia.
Rev Sci Instrum. 2021 Jan 1;92(1):015104. doi: 10.1063/5.0029815.
This paper presents a hybrid interferometric system designed to measure the surface velocity of tested specimens in shock-wave experiments. The system integrates the All-Fiber Velocity Interferometer System for Any Reflector (AFVISAR) and the Photonic Doppler Velocimeter (PDV) interferometric channels using a single probing system to measure the velocity of one surface point of specimens under study. This design allows the same optical signal containing the Doppler frequency shift to be processed by the AFVISAR and PDV independent interferometric devices. The interferometric system has been tested in dynamic experiments and provides the velocity measurement accuracy of at least 1.5 m/s with a nanosecond time resolution.
本文介绍了一种混合干涉测量系统，该系统旨在测量冲击波实验中测试样本的表面速度。该系统将全光纤任意反射体速度干涉仪系统（AFVISAR）和光子多普勒测速仪（PDV）干涉通道集成在一起，使用单个探测系统来测量所研究样本一个表面点的速度。这种设计允许包含多普勒频移的同一光信号由AFVISAR和PDV独立干涉装置进行处理。该干涉测量系统已在动态实验中进行了测试，提供了至少1.5 m/s的速度测量精度和纳秒级的时间分辨率。
