Fiber-Based Laser Doppler Velocimeter State of the Technology for Verification and Validation of Surface Velocity Measurements

This effort provides the ability to characterize curved surface velocity range and maxima. It also affords the opportunity to place the probe inside clay or gel backing material to measure backface deformation. The fiber sensor probe can be used in a sacrificial manner in explosive events to characterize surface velocity up to the time the probe is destroyed, providing a low-cost alternative to x-ray and high-speed camera systems for measuring material velocities.