Nanosecond Hydrodynamic Diagnostics Using Fiber Optic Probes and a Streaking Camera

摘要

A new method for measuring the shape and position of high-velocity surfaces and shock fronts is described. The method involves the use of an optical pin quite similar in appearance to the coaxial, self-shorting, electrical pin commonly used. The ionization of xenon gas in the pin tip produces a light signal that is transmitted by a fiberoptic bundle and recorded using a streak camera. Preliminary data from impact tests that indicate a pin signal response of 1 to 2 ns are discussed. (ERA citation 02:018110)