SU832339A1 - Arrangement for measuring parameters of vibrodrive - Google Patents

Description

(54) DEVICE FOR MEASURING VIBRIC DRIVE PARAMETERS

The invention relates to a measurement technique, in particular, to devices for measuring parameters of vibration drives. A device for measuring the parameters of the vibrodrive is known, which contains a voltage depot connected to the rotor and the oscillating concentrator i acting on it. The known device has a relatively simple design, however, it does not allow to ensure a sufficiently simple process of measuring the parameters of the vibrodrive. It is also known a device for measuring vibro-drive parameters, comprising a switch connected to the input of a matching element and connected between the output of an electric power source and a piezo-ceramic converter mounted on an oscillator concentrator connected to a signal-connected resistor voltage divider connected to the first output bus , and mounted on the housing with the possible impact on the rotor, sotsinetstsy with a common bus resistor voltage divider, the input bus is connected to phase shifter L2. This device allows for a relatively high measurement speed of the vibration drive parameters. The disadvantage of such a device is the considerable error in the result of measuring the parameters of the vibrodrive. The circuit of the invention is the reduction of the measurement error of the vibration drive parameters. The goal is achieved due to the fact that an amplitude detector, an interface between the output of the matching element and a second output spin amplifier, a frequency detector connected to the third output voltage and an amplitude limiter whose output is connected to the phase shifter input are inserted into the device for measuring the parameters of the vibrodrive. At the same time, the output of the matching element is connected to the input of the amplitude limiter, the output is k383

Secondly, connected to the input of the frequency detector.

The drawing shows one of the possible variants of the proposed device for measuring vibration parameters.

The preconfigured device contains a switch 1 connected to the input of the element 2 and connected between the output of the electric power source 3 and the piezoceramic converter 4. The piezoceramic converter 4 is mounted on the oscillation concentrator 5 mounted on the housing with the possibility of acting on the rotor 6 connected to the common bus a resistor voltage divider 7 consisting of a constant resistor 8 and a variable resistor 9. The oscillation center 5 is connected to the signal busbar of the igniter divider voltage connected to the first output bus 1O. In the resistor voltage divider, the constant resistor 8 is connected to the input bus connected to the phase shifter 11, also connected to its common bus,

The preconfigured device also contains an amplitude detector 12 connected between the output of the matching element 2 and the second output bus 13, a frequency detector 14 connected to the third output bus 15, and an amplitude limiter 16 whose output is connected to the input of the phase shifter 11, the output of the matching element 2 connected to the input of the amplitude limiter 16, the output of which is connected to the input of the frequency detector 14,

Amplitude detector 12 generates a signal carrying information about the law of variation of the amplitude of the voltage on the piezoceramic converter 4 or the current through it. Frequency detector 14 generates a signal carrying information about the law of voltage frequency variation on piezoceramic transducer 4.

9-4

The use of the invention significantly reduces the measurement error of vibrodrive parameters.

Formula I.3 gain

A device for measuring vibration drive parameters, containing a switch connected to the input of a matching element and connected between the output of an electrical energy source and a piezoceramic transducer fixed to an oscillation concentrator connected to a signal bus of a resistor voltage divider connected to the first output bus and mounted on the housing with the possibility of acting on a rotor connected to a common bus of a resistor voltage divider whose input busbar is connected to a phase shifter , characterized in that, in order to reduce the measurement error, an amplitude detector is inserted in it, Е1 connected between the output of the matching element and the second output bus, a frequency detector connected to the third output bus, and an amplitude limiter, the output of which is connected to the input of the phase shifter, and the output A matching element is connected to the input of the amplitude limiter, the output of which is connected to the input of the frequency detector.

f

Sources of information taken into account when executing

1. Arkhangelsky M. Ye. ° On the transformation of ultrasonic oscillations of a surface into rotational and translational motion of a body. - Acoustic Journal, 1963, no. 3, s. 277.

2. Authors soy certificate of the USSR, according to application number 2603574 / 18-25,

K l, N 04 L 41 / OO ,. 1978 (prototype).

Claims (1)

Claim A device for measuring the parameters of a vibrodrive, comprising a switch connected to the input of the matching element and connected between the output of the electric energy source and a piezoceramic transducer mounted on a vibration concentrator connected to the signal bus of the resistor voltage healer connected to the first of the output buses and mounted on the housing with the possibility of impact on the rotor connected to the common bus of the resistor voltage divider, the input bus of which is connected to the phase shifter, about characterized in that, with a circuit for reducing the measurement error, an amplitude detector is inserted into it, connected between the output of the matching element and the second output bus, a frequency detector connected to the third output bus, and an amplitude limiter, the output of which is connected to the input of the phase shifter, the output of the matching element is connected to the input of the amplitude limiter, the output of which is connected to the input of the frequency detector. "