Laser interferometer for measuring high velocities of any reflecting surface

作者：L. M. Barker, R. E. Hollenbach · 发表于：Journal of Applied Physics · 年份：1972 · DOI：10.1063/1.1660986 · 被引用次数：1696 · 研究领域：Advanced Measurement and Metrology Techniques、Scientific Measurement and Uncertainty Evaluation、Electromagnetic Launch and Propulsion Technology

A laser velocity interferometer instrumentation system has been developed which can measure the velocity history of either spectrally or diffusely reflecting surfaces. The system provides two interferometer fringe signals in quadrature to improve resolution and to distinguish between acceleration and deceleration. Accuracies of 2% or better are attainable for peak surface velocities of 0.2 mm/μsec or more. The system has been applied to the measurement of free surface motion in plate-impact experiments, and to the measurement of the velocity history of a projectile during its acceleration down a long gun barrel.