SU641347A1 - Stroboscopic oscilloscope scanning device - Google Patents

Description

I

The invention relates to electrical measurements and can be used in the study of electrical pulses.

A device for scanning a stroboscopic oscilloscope is known that consists of a synchronizer whose input serves as the input of the device, an auto-shift unit whose outputs are connected to a step voltage generator and an output stage, the step voltage generator serves as an output of the device, and its other output is connected to the block input Autodvng, the output stage serves as another output device.

The disadvantage of such a device is that the time it takes to study a signal is long, since the time it was built on the oscilloscope screen is equal to the step voltage period.

The aim of the invention is to reduce the signal acquisition time.

This goal is achieved by the fact that a sweep oscilloscope sweep device, consisting of a synchronizer, whose input serves as the device input, an auto-shift unit, the outputs of which are connected to the step voltage generator and the output stage, the output of the step voltage generator and the other efo the output is connected to the input of the aat shift unit; the output of the output stage serves as another output of the device; it is equipped with a second synchronizer, whose inputs are connected to the outputs of the first synchronizer and the unit and auto-shift, and the output is to another input of the auto-dvd unit. The drawing shows a block diagram of the device.

The device comprises the first synchronizer 1, the second synchronizer 2, the automatic shift unit 3, the output stage 4, and the generator 5 of the staggered voltage. The input of the first synchronizer is the input of the device, the signal from the output of the output stage serves to start the strobe generator and the output of the step voltage generator serves to excite an amplifier of the x axis of the oscilloscope.

The device works as follows.

The second synchronizer 2 receives pulses from the automatic shift unit 3, which correspond in time to the full cycle of operation of this unit: the formation of a sawtooth voltage and a delayed output pulse. When the trigger signal is fed to the input of the device, the first synchronizer I sends a pulse to the second synchronizer 2. The second synchronizer passes this pulse to the automatic shift unit 3 only if it receives rie pulses corresponding to the operation of the automatic shift unit 3. Therefore, the time between the output pulses of the second synchronizer or the clock frequency will be determined by the amount of delay of the output pulse of the automatic shift unit 3 at the given time.

The output pulse of the auto-shift unit 3 triggers the output stage 4 and the step voltage generator 5, the output voltage of which rises one step. This increases the delay of the output pulse of the automatic shift unit 3 upon its next launch.

The clock sampling frequency varies from the maximum with the minimum delay of the output impulse of the automatic shift unit 3 to the minimum corresponding to the clock frequency of the known scanner of the stroboscopic oscilloscope at the maximum value of the delay.

An increase in the clock frequency at low delays of the output impulse of the auto-shift block 3 FROM long sweeps gives the baptism of the signal investigation time. The magnitude of this reduction depends on the number of impediments of the first siliconizer during one cycle of signal gating.

As a result of the application of the Invention, the time for studying signals on long scans is shortened several times. This allows you to increase the speed of information processing and increase the performance of stroboscopic oscilloscopes, especially automated test systems.

Claims (1)

Invention Formula A sweep oscilloscope sweep device consisting of a synchronizer whose input serves as the device input, an auto-shift unit, the outputs of which are connected to a step voltage generator and an output stage, the output of a step voltage generator serves as an output of the device, and its other output is connected to the input of the automatic shift unit, the output of the output stage serves as another output of the device, characterized in that, in order to shorten the signal acquisition time, the device is equipped with a second sonarizer, the inputs of which It is connected to the outputs of the first synchronizer and the automatic shift unit, and the output to the other input of the automatic shift unit. Sources of information taken into account in the examination: I. Binine Yu. A. Stroboscopic oscillography, M., “Owls. radio, 972, s. 116, fig. 4.13.