SU1029090A1 - Stroboscopic oscilloscope scanning device - Google Patents

Abstract

A SCAN DEVICE FOR THE STROBOSCOPIC OSCILLOGRAPH containing a synchronizer whose input is connected to the device input and the output to the first generator input of a fast sawtooth voltage, the output connected to the first input to the terminal whose second input is connected to the output of the voltage divider, and the output with the output of the device and the input of the generator of the slow pnoobraznogo voltage, I differ | e e / c there, that, with a chain higher than 1 ln, lt is a circuit of a sweep of the constancy of the time constant. 1x intervals between the output of the pulses, it is equipped with a gateway, a pulse detector, a gatekeeper, and a delay unit, whose input is connected to the output of the comparator, and the gateway - With: the gate generator, a pulse generator, connected to the second input of the scanner, and the sampler, which is connected to the second input of the scanner and the sampler, the input of which is connected with the output of the generals ") and a 5-fast sawtooth voltage, the output with the input of the expander ipulses and the third u input with the output of the impulse expander, the input of the voltage divider and f / 1 V 01ZH1M entrance ramp generator quick nap j) wives.

Description

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 l tiHduKomop The invention relates to electrical measurement technology and can be used in an iroband stroboscopic oscilloscopes. A sweep device comprising a synchronizer, fast and slow sawtooth voltage generators and a comparator Cll is known. A disadvantage of this device is low linear sweep. The closest to the invention to the technical essence is a sweep device for a stroboscopic oscilloscope, containing a synchronizer, the input of which is connected to the input

devices ,. and the output is connected to the first input 5 to the first inputs of a comparative generator of a fast sawtooth voltage connected to the first input of the comparator whose second input is connected to the output of the voltage divider and the output of the device to the second sawtooth voltage and the input of the slow sawtooth generator, the first output of which is connected to the input of the divider, voltage G23. A disadvantage of the known device is the low linearity of the sweep due to the change in the time intervals between the output pulses depending on the distortion of the working section of the fast sawtooth pulse. The aim of the invention is to increase the linearity of the sweep by ensuring that the time intervals between the output pulses are equal to 1 to 1. The goal is achieved in that a sweep device for a stroboscopic oscilloscope containing a synchronizer, whose input is connected to the device's input, and an output to the first input of a fast sawtooth generator, an output connected to the first input of the comparator, the second input of which is connected to the output of the divider. the output, with the output of the device and the input of the slow sawtooth generator, is equipped with a stroboscopic mixer with a puller and pulses, a generator of strobe pulses and a backward unit The holders, whose input is connected to the output of the comparator, and the output are connected to the input of the gating pulse generator, the output connected to the second input of the stroboscopic mixer, the first input of which is connected to the output of the fast sawtooth generator, the output to the input of the pulse attenuator, and the third input with the output of a πpulitel igulus, the input of a voltage divider and the second input of a fast sawtooth generator,

torus 3 and mixer 4. At the initial moment of time, the voltage at the output of the expander 5 and divider 6 is zero. The signal at the output of the comparator 3, the processed electrical circuit of the device is shown in the drawing. The device consists of synchronizer 1, generator 2 fast sawtooth voltage (BPN), comparator 3, stroboscopic mixer 4, expander 5 pulses, voltage divider b, generator 7 gating pulses, block 8 delay and generator 9 slow sawtooth voltage (MPN) The device works as follows. The synchronization pulse triggers the BPN generator 2, the voltage from which is due to the comparison of the BPN and the zero level of the divider b, starts the generator 7 of the strobe pulses through the delay block 8. Having spent some time under the action of the pulses produced by the strobe pulse generator 7, the GIT is strobing, acting on the input of the mixer 4. From the output of the mixer 4, the extended pulse, in amplitude corresponding to the value of the BOS at the time of gating, is fed to the rasi-nitrite 5 and converted to voltage with a constant level (equal to the amplitude of the extended pulse). The voltage obtained after passing through the divider b is fed to comparator 3 for the following comparison with BPN. After the arrival of the next pulse from synchronizer 1, everything repeats, with the only difference that on the comparator 3 the EPN is compared not with the zero level from the divider b, but with the value obtained by gating the BPN at this point. The device uses a time-transformed fast saw-tooth value as a slow sawtooth voltage controlling the autoshift process. The required number of gating points is obtained by changing the delay of block 8. The 2-VPN generator returns to its initial state after the appearance of a predetermined voltage at the output of the expander 5. The sweep duration is determined by the ratio of the block number 6. For the sweep of the indicator beam from the output of the generator 9, a slow sawtooth device allows to ensure a constant reading regardless of the distortions of the working area of the pulse fast sawtooth

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voltage, which allows to increase When using the device, the flight distance of the stroboscopic predominance of time measurements is reduced

The wavelength of the signal under investigation is in the picosecond range of particle numbers up to a few percent.

Claims (1)

DEVELOPMENT DEVICE FOR A STROBOSCOPIC Oscilloscope, comprising a synchronizer, the input of which is connected to the input of the device, and the Output - to the first input of the fast sawtooth generator, the output connected to the first input of the comparator, the second input of which is connected to the output of the voltage divider, and the output - to the output of the device and the input of the generator of a slow sawtooth voltage, characterized in that, with a circuit to increase the linearity of the sweep by ensuring the constancy of the time intervals between the output pulses and, it is equipped with a stroboscopic mixer, a pulse expander, a gating pulse generator and a delay unit, the input of which is connected to the output of the comparator, and the output is connected to the input of the gating pulse generator, the output connected to the second input of the stroboscopic mixer, the first input of which is connected to the output of the fast sawtooth generator voltage output * with the input of the pulse expander, and the third input with the output of the pulse expander, the input of the voltage divider and the second input of the fast sawtooth generator oh voltage. 060620