SU1164611A1 - Device for generating,controlling and checking sweep operation of cathode-ray oscilloscope - Google Patents

Abstract

DEVICE FOR FORMATION, AND CONTROL MODE SCANNER cathode ray OSTSSHSHOGRAFA comprising a clock source, whose output is connected to a first input of determining the presence of sync pulses and the input trigger oscillator sweep, the output of which is connected to the bus outputs a switch type of work the sweep generator and the indicator , characterized in that, in order to increase the reliability of information on the establishment of a synchronized sweep mode, it is equipped with an indicator control unit The output of the indicator is connected to the indicator input, the signal input is connected to the second output of the sweep generator, and the control input is connected to the control input of the sweep generator and the output of the sync pulse detection unit, the second input of which is connected to the output of the switch of the sweep generator.

Description

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The invention relates to an electrical measuring technique and can be used in electron-beam oscilloscopes. A device for forming, controlling and controlling the scanning mode of an electron-beam oscilloscope is known, which contains a block for determining the presence of sync pulses, an indicator, a switch of the type of operation of the generator-scan, a key, and a generator of the scan Cl. The disadvantage of this device is the synchronized mode. sweep. The closest to the proposed technical entity is a device for generating, controlling and controlling the scanning mode of an electron-beam oscilloscope, which contains a source of clock pulses, the output of which is connected to the first input of the clock detection unit and the start output of the scan generator, which output (Pogo connected to pin output signals, a switch for operation of a geyrator scanner and an indicator. A disadvantage of the known device is the low reliability of information on the establishment of a mode. A synchronized sweep, the purpose of the invention is to increase the reliability of information about setting the synchronized sweep mode. The goal is achieved by the device for generating control and monitoring of the sweep mode of the electron-beam oscilloscope, containing a source of synchronous pulses, the output of which is connected to the first the input of the sync pulse detection unit and the sweep generator start input, the output of which is connected to the output signal bus, the switch of the scan generator operation and the indicator stabmented by the indicator control unit, the output of which is connected to the indicator input, the signal input with the second sweep generator code, and the control input with the control input of the sweep generator and the progress of the sync pulse detection unit, the second input of which connected to the switch output of the kind of operation of the sweep generator. The drawing shows a structural electrical circuit of the device. The device consists of a source of 1 clock pulses, a switch 2 of the type of operation of the sweep generator, a block 3 for detecting the presence of clock pulses, an indicator control unit 4, a sweep generator 5 and an indicator 6. The proposed device operates as follows. In Auto mode, switch 2 sets a high potential enabling command at the second input of block 3 for detecting the presence of clock pulses. In the absence of sync pulses at the first input of the unit 3, a high potential is established at its output, which translates the sweep generator 5 into a self-oscillating mode. The same high potential applied to the control input of the indicator control unit 4 prevents the signal from the second output of the generator 5 of the discharge to the input of the indicator 6 from passing. Thus, in the mode. Auto in the absence of sync pulses indication is missing. At the occurrence of clock pulses at the output of source 1 at the output of block 3 for detecting the presence of clock pulses, a low potential is established, which takes the sweep generator .5 into the standby mode, preparing it for launch by the next clock pulse. When a sawtooth voltage is formed, a pulse signal appears at the second output of generator 5, synchronous with the saw voltage. When the potential at the control input of the indicator control unit 4 is low, a signal arriving at its signal input passes to the input of indicator 6, which springs during the forward sweep stroke. To eliminate the indicator flicker, the integrator contained in block 4 can be used. Thus, if the arrival of the sync pulses puts the generator 5 into standby mode and it forms a synchronized ramp voltage, then the flashing or constant indication is performed.

3

in standby mode the switch 2 sets a low potential at the second input of the block 3 for detecting the presence of clock pulses. In block 3 code, a low pot is set both in the presence of clock pulses and in their absence. In the absence of sync pulses, the sweep generator 5 does not start, the signal at the signal input of block 4 does not receive a signal and the indicator 6 does not light up. In the presence of sync pulses and a pulse signal from the second output of the generator 5 sweep is fed to the signal input unit 4 and its

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In the event of a signal, causing the indicator 6 to glow.

So in mode. indication is carried out only when

 5 availability of synchronized ramp voltage sweep.

The device allows you to indicate the operation of the sweep generator in a synchronized mode, which is especially important when the sweep generator operates in the low frequency region, when it is difficult to obtain information on the establishment of a synchronized mode.

Claims (1)

DEVICE FOR FORMING, CONTROL AND MONITORING THE SCAN MODE OF THE ELECTRON BEAM Oscillograph containing a clock source, the output of which is connected to the first input of the block for detecting the presence of clock pulses of a scan generator, the output of which is connected to the work signal bus, a kind switch. sweep and indicator, characterized in that, in order to increase the reliability of the information on establishing a synchronized sweep mode, it is equipped with an indicator control unit, the output of which is connected to the indicator input, the signal input - with the second output of the sweep generator, and the control input - with the control input generator scan and the output of the unit for determining the presence of clock pulses, the second input of which is connected to the output of the switch. rod work generator scan. and input launch re 4 * O *