Optical Vibration Measuring System Which Uses the Image of the Object

Abstract

In many cases in practice there is a necessity in vibration measurements of objects, which are hardly measurable by traditional means (both contact and contactless). In such cases a new method can be used, which requires primarily optical visibility of the object. In this paper method and optical-electronic vibration measurin sys,tem is described, principle of operation of which is % a A on measurements of specially formed optical image of either the object itself, or the contrast part or element on the object's surface. Given are the results of mathematical and computer simulation of the system's measurink sections. Described are results of investigation of hindrance influence upon the result of measurements, and resulting errors are estimated. Described are methods and devices, designed for compensation of errors. Prasnted are the main technical characteristics of constructed model and the results of testing of some objects.