RU94015796A - DEVICE FOR MEASURING VIBRATING - Google Patents

Claims (1)

The invention relates to vibro-measuring technique and can be used to measure vibration displacements both in vibratory calibrators and when testing structures and parts for monoharmonic vibrations in mechanical engineering and aircraft construction. The device allows to increase the reliability and accuracy of measurements. For this purpose, the converter is made in the form of a tripod 2 with an opaque shutter 9 mounted on the movable part of the vibrostand 4, and the sensor includes a housing 19, a measuring rod 8, to the end of which a console with a slot 9 and photosensors 11 on its surfaces is attached, a rack and pinion mechanism 6 , used to convert the angular displacement of the axis of the stepper motor 19 in the linear displacement of the measuring rod. The sensor body is mounted on the fixed part of the shaker. The transducer and the sensor are located relative to each other so that the light-tight curtain can freely move in the slot of the console between the LEDs and the photodiodes of the photosensors, thereby blocking the light flux. The operation of the stepper motor and the calculation of the steps of moving its shaft through the code-pulse converter 17 and the power supply unit 18 performs microcomputer 16, receiving signals through the threshold element 15 and integrator 14, and the OR element 13 from the pulse shaper 12, whose inputs are connected to the outputs of the photosensors. 1 p. F-ly, 2 ill.