FIELD: measurement technology. SUBSTANCE: optical three- coordinate device to test vibration displacements has light source, reflector anchored in tested point, photodetector, amplifier, computer and indicator. Reflector is manufactured in the form of rectangular mirror trihedron whose center is fixed in tested point Coordinate grid is marked on reflecting surfaces of mirror trihedron. EFFECT: simplified design of device, increased accuracy of test of angular inclinations and measurement of value of vibration displacements. 2 dwg
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