Method and system for locating a laser vibrometer during non-contact scanning

摘要

A method and system are provided for inspecting a surface of an object (14) with an optical scanner (16) and a laser vibrometer (18). The method includes the steps of: (a) mapping at least a portion of the object surface (12) using the optical scanner (16); (b) projecting abeam of light (32) from the laser vibrometer (18) onto the object surface (12) at a measurement point (68); (c) locating the measurement point (68) relative to the object surface (12) using the optical scanner (16); and (d) measuring a position of the object surface (12) using the laser vibrometer (18) to determine, for example, a deflection of the object surface (12).