FIELD: measurement technology.
SUBSTANCE: claimed method of indicating the resonance frequencies comprises the following steps: fix the test object on the movable part shaker, which is driven to oscillate at a variable rate, and fed to it from the light source, wherein the object of control is directed radiation from the three sources of light: red, blue and green, to form when mixed white light that illuminates the object of control, with one light source, such as green, is connected to a DC power source, and the remaining light sources serves strobe pulses, then, changing the frequency of vibration of the movable part of the shaker, a visual record the resonance point of the emergence of on-site monitoring of multi-colored stripes.
EFFECT: technical result is to increase the accuracy of determination of the resonant frequencies of the structure.
2 cl, 4 dwg
