PULSE STRETCHING TECHNOLOGY FOR LASER BOND INSPECTION, LASER ULTRASONIC INSPECTION AND LASER PEENING

摘要

PROBLEM TO BE SOLVED: To provide a pulse stretching technology for a laser bond inspection, laser ultrasonic inspection and laser peening.;SOLUTION: A laser system includes: a laser; a plurality of pulse stretchers 204 that are mutually coupled in series; a feedback module 206; and a lens assembly 208. The feedback module includes a pulse delay comparator 210 that is configured to compare a first laser pulse with a stretched laser pulse. The feedback module 206 also includes a computing device that is configured to determine an adjustment with respect to one pulse stretcher of the plurality of pulse stretchers on the basis of a result of the comparison by the pulse delay comparator 210, and apply the adjustment to the pulse stretcher so as to modify a shape of a second stretched laser pulse of the stretched laser pulses.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2020,JPO&INPIT