SU1310739A2 - Transducer of pulsing voltage - Google Patents

Abstract

The invention can be used in devices for monitoring deviations of the shape of parts from cylindrical and is additional to the author. St. USSR No. 1116503. The purpose of the invention is to increase the speed of the sensor. The sensor comprises an integrator 1, a high-frequency interference suppression unit 3, a switch 4, a memory unit 5, a differentiation unit 6, and a driver 7 for control pulses. The introduction of the signal conditioning unit 8 changes the integration time constant in accordance with the frequency variation of the input signal in the frequency range. 2 Il. 00 with

Description

one

The invention relates to an electrical measurement technique and can be used in devices to control the deviation of the shape of parts from cylindrical.

The purpose of the invention is to increase the speed of the sensor by changing the constant integration time in accordance with the frequency change of the input signal in the frequency range

FIG. 1 shows the functional scheme of the sensor; in fig. 2 - time diagrams of his work.

The pulse voltage sensor contains an integrator 1, the input of which is connected to the input buses 2 and the input of the high-frequency interference suppression unit 3. The output of the integrator 1 through the switch 4 is connected to the memory block 5. The output of unit 3 through the differentiating unit 6 is connected to the driver of control pulses 7, the outputs of which are connected to the inputs of the switch 4.

To one of the outputs of the imaging unit 7, the input of block 8 is connected, a signal is formed that is proportional to the period of the input signal, the output of which is connected to the control input of the integrator 1. The integrator 1 is made with an adjustable time constant. Switch 4 contains two controllable keys: a signal transfer key and a reset key. The integrator 1 can be made in accordance with known technical solutions, for example, with adjustable resistance determining the time constant, and as the unit 8, known devices can be used, for example, converting a time interval to a voltage.

The sensor works as follows. The integrator 1 integrates the input signal, and the differentiating unit 6 (FIG. 2B) and the imaging unit 7 provide for the formation of control (FIG. 2–8) pulses at the end of each period of the variable component (figure 2og) of the input signal. The high-frequency interference suppression unit 3 eliminates the formation of pulses under the influence of the specified interference. Control pulses are sent to switch 4 keys. A signal transfer key connects, at the end of each period, a variable component of the input signal, integrator 1 (FIG. 2 g) to memory block 5, in which the integrated value for the period of the input signal is stored (fig . 29). The time constant of integrator 1 is set by the signal of block 8. As the frequency (period) of the input signal changes, the output signal changes proportionally (for example, voltage)

block 8. Under the influence of this signal, the time constant of the integrator 1 is changed, for example, by changing its resistance. .

thirty

Claims (1)

Invention Formula Pulse Voltage Sensor on Aut. St. No. 1116503, characterized in that, in order to improve speed in the frequency range of the input signal, a signal generating unit is added to it proportional to the period of the input signal, the input of which is connected to the output of the driver control for 40 pulses, and the output to the control input integrator, made with adjustable time constant. H- vy FIG. 2 Editor A. Ogar Compiled by A. Puchkovsky Tehred N.Glushchenko Proofreader O. Tigor Order 1886/41 Circulation 731 Subscription VNIIPI State Committee of the USSR Inventions and discoveries 113035, Moscow, 3-35, Raushsk nab., d, 4/5 Production and printing company, Uzhgorod, st. Project, 4