The measurement of Velocity-per-Fringe Constants of VISAR

Four experimental approaches had been developed to measure the velocity-per-fringe constants of VISAR. In particular, owing to the high accuratity and the wide applicable range, the integrated VISAR and DISAR approach should be a versatile method to measure arbitrary velocity-per-fringe constants of VISAR. In the absence of the integrated VISAR and DISAR system, the velocity-per-fringe constants of VISAR can also be measured through the measurement of the VISAR's delay time, the relatively standard velocity source produced by the fused silica symmetric impacting with a window, or the calibrated VISAR.