SU853559A1 - Stroboscopic converter of repeating pulse signals - Google Patents

Description

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It relates to electrical measuring equipment and can be used in stroboscopic oscilloscopes and gauges.

Known stroboscopic converter of pulse signals, containing a mixer, a generator of shock pulses, fast generators ;; slow sawtooth stresses and a unit of comparison of these stresses r.

A disadvantage of this device is the low accuracy of setting the delay of the strobe pulses, due to the non-reality of the shape of the pilot phase voltages and the instability of the comparison unit.

The closest to this invention in its technical essence is a stroboscopic converter of repetitive pulse signals, which contains a mixer, the input of which is connected to the signal bus of the signal being converted, and the second input is connected to the output of the strobe pulse generator, the start input of which is connected to the third input of the switch.

dou unit of the codec and matching unit of the first pulse counter, the counting input of which is connected with the key output, and the code outputs with the first code pulse

The inputs of the code matching unit, the second code inputs of which are connected to code exits, are the second pulse counter, the counting input of the key connected to the second input, the output of the selected period of the signal to be imaged, and

- the input of the pulse frequency multiplier, the output of which is connected to the first input of the key 2 J.

The disadvantage of this device is the functional limitations; possible gay: szho does not provide accurate gfeof-

.zank of non-periodic pulsed segals.

In order to expand the functionalities of the POSSIBLE SURFACE, the stroboscopic spheofazovatel of bursting pulse signals, containing a mixer, the first input of which is connected to the bus of the signal being converted, and the second input -. with the output of the generator strobe pulses, the start input of which is connected to the third key input, the output of the code match block and the reset input of the first pulse counter, the count input of which is connected to the key output, and the code outputs with the first code inputs of the code match block, the second code inputs which is connected to the code outputs of the second pulse counter, the counting input of the key connected to the second input and the clock bus, is supplied with a pulse generator and a trigger pulse output unit, the first input coupled to the output of the pulse generator and the first input key, the second input - to a bus vyhodnk impuasov run.

The stroboscopic converter of repetitive pulse signals can be equipped with a frequency divider of the following pulses, the input of which is connected to the key of the key, and the output to the counting input of the first pulse counter.

FIG. 1 shows the structural electrical circuit of the device; in fig. 2 the same. With a frequency divider: following impulses.

The device consists of a mixer 1, a generator 2 strobe pulses, a generator 3 pulses, a key 4, the first counter

5 pulses, a block 6 of coincidence codes, a second counter 7 pulses, a block 8 for selecting a trigger pulse, and a separator O of the pulse frequency.

The device works as follows.

The synchronization pulses of the converted signal arrive at the second input of the key 4 and the counting input of the counter 7. Each of these pulses opens the key 4, through which the generator 3 pulses arrive at the counting input of the counter. At the moment of equality of the numbers in the counters 5.7 block

6 coincidence of the codes impulses the triggering generator of 2 strobe pulses, resetting the counter 5, the key

4 and arriving at the output of the device. With each new synchronization pulse, the moment of equality of numbers, and consequently, the pulse also shifts in time by an amount equal to the pulse following at the input of the counters 5. Mixer 1 memorizes the magnitude of the signal being converted at the moment of the appearance of the pulse. If it is possible to launch the object under test externally, then its launch input is connected to the SUSHE trigger output pulse. In this case, block 8 after entering

the second input of the trigger enable signal entered one pulse from the pulse train of generator 3, which from the output of block B is fed to the trigger input of the object under study. In the second embodiment of the device, the pulse frequency arriving at the counting input of the counter 5 is divided by a predetermined number of times, which allows the device to further expand its functionality. The device eliminates the dependence of the counting rate of the counter 5 on the repetition period of the signal being converted, as a result of which it allows you to convert non-periodic signals with high accuracy, and the conversion error is minimal with the possibility of external triggering of the object under study.

Claims (2)

1.Stroboscopic transducer repeating pulse signals containing a mixer, the first input of which is connected to the bus of the signal being converted, and the second input to the output of the pulse generation generator, the start input of which is connected to the third input of the key, the output of the code matching unit and the reset input of the first pulse counter whose counting input is connected to the key output, and the code Bbt inputs to the first code inputs of the code match block, the second code inputs of which are connected to the code inputs of the second counter pulse c, counting the input of the key connected to the second input and the clock pulse bus, which is due to the fact that, in order to expand its functionality, it is equipped with a pulse generator and a start pulse pusher unit, the first input of the KOTqDoro is connected with the first pulse generator the key input, the second input with the trigger expansion signal bus, and the output with the output pulse bus. 2. The converter according to claim 1, in connection with the fact that it is equipped with a pulse frequency divider, the input of which is connected to the output of the key, and the output to the counting input of the first pulse counter. Sources of information taken into account in the examination 1.R Binin Yu, A. Stroboscopic Oscilography. A1., Soviet Radio, 1972. 2. USSR author's certificate number 469О89, cl. Q O1 R 13/34, 1973 (prototype).