MODE OF MEASURING AMPLITUDES OF VIBRATIONS OF RADIATING SURFACE OF ULTRASONIC OSCILLATING SYSTEM

摘要

FIELD: the invention refers to measuring technique namely to the means of measuring amplitudes of ultrasonic variations. ^ SUBSTANCE: the oscillating system is installed in such a manner that its acoustic axle is transversely to the optical axle of light sources forming impulse light radiation of various lengths (colors) into a cylindrical beam. Duration of impulses is set as equal to thousandth of the period of working variations of the oscillating system. The frequency of impulse sequence is set so that moments of forming impulses of light radiation of waves (colors) of one and the same length coincides with the moment of maximum displacement in other direction. The amplitude of vibrations is defined according to relative displacement of images of radiating surface in the moments of forming impulses of light radiation of different lengths of waves(colors)carrying out visual observation through a microscope provided with an ocular scale or a net. ^ EFFECT: increases accuracy and speed of fulfillment of measuring without preliminary calibration. ^ 6 dwg