SU1182640A1 - Pulse process generator for electrodynamic impact testbed control - Google Patents

Abstract

PULSE PROCESS GENERATOR FOR CONTROLLING ELECTRODYNAMIC SHOCKING STAND, containing serially connected pulse generator, frequency divider and counter, control unit, the first output of which is connected to the synchronization input of the first register, the outputs of which are connected to the corresponding inputs of the frequency divider, memory unit, synchronization input of which is connected with the second output of the control unit, serially connected source of reference voltages, first and second converters code - voltage, W A swarm register, the synchronization input of which is connected to the third output of the control unit, characterized in that it contains the third register, the fourth register, the trigger, the switch, the outputs of which are connected to the address inputs of the memory unit, in order to increase the accuracy of the pulse process with an arbitrary pulse shape. ti, informational inputs of which are connected to the first group of outputs of the block y, etching and informational inputs of the first, second, third registers and the fourth register, the synchronization input of which is connected It is connected with the fourth output of the control unit, the second group of outputs of which is connected to the first group of inputs of the switch, the first group of inputs of which is connected to the corresponding outputs of the counter and the first output of the trigger, to S the second output of which is connected to the control inputs of the third register and (L fourth register, the outputs of which are connected to the inputs of the second converter code - voltage and with the outputs of the second register, the control input of which is combined with the control input of the first register and connected to the first output gge00 ra, the clock input of which is connected with the output tNd counter transfer input O) installation which is integrated with the trigger input of the installation and connected to a fifth output of the control unit, on. the sixth output of which is connected to the synchronization input of the third register, the outputs of which are connected to the inputs of the frequency divider, the seventh output of the control unit is connected to the control input of the switch, the outputs of the memory unit are connected to the inputs of the first code-voltage converter.

Description

This invention relates to a pulsed technique.

The aim of the invention is to improve the accuracy of forming a pulsed process with an arbitrary pulse shape.

FIG. 1 shows a functional 1 c1 pulse diagram of a pulse process generator for controlling an electrodynamic shock test bench; in Fig. 2, the curves explaining the forms of the effects worked out by the bench when the impulse generated by the device-prototype (Fig. 2a) and the process implanted by the generator of the impulse process (Fig. 26) are applied to it; in fig. 3 is a timing diagram for setting the initial states of the pulse generator blocks.

The pulse process generator for controlling an electrodynamic shock bench (Fig. 1) contains in series a pulse generator 1, a frequency divider 2, a counter 3 and a trigger 4, a memory block 5 connected in series, the first 6 and second 7 voltage code converters, the first register 8 , the second register 9, the third register 10, the fourth register 11, the switch 12, the control unit 13, the source 14 of the reference voltages. The outputs of the first 8 and third 10 registers are connected to the inputs of the splitter 2 frequency, the outputs of the switch 12 are connected to the address inputs of the memory block 5, the first group of outputs of the control block 13 is connected to the information inputs of the first 8, second 9, third 1C and fourth 11 registers and block 5 memory, the second group of outputs of the control unit 13 is connected to the first group of inputs of the switch 12, the second group of inputs of which is connected to the outputs of the counter 3 and the first you -. trigger 4, the second output of which is connected to the control inputs of the third 10 and fourth 11 regist Bj first, second, third, fourth, sixth outputs 6jJoKa 13 of the control are connected to the synchronization inputs of the first register 8, block 5 of the memory, second register 9, fourth register 11 and the third register 10, respectively, the fifth step of the control unit 13 is connected to the installation inputs of the counter 3 and the trigger 4, the seventh output of the control unit -13 is connected to the control input of the switch 12, the outputs of the second 9 and fourth 11 registers are connected to the inputs and the second converter 7 code - voltage, output, source 14 reference voltages is connected to the first converter 6 code - voltage.

Pulse process generator to control electrodynamic

With a shock stand, it works the next way.

. Before the impulse process generator starts to work, using information controls (for example, switches) of the control unit 13, information is recorded (FIG. 3) into registers 8-11 (FIG. 3b, c, d, e, respectively), the initial setting (FIG. a) counter 3 and trigger 4,

setting the address (Fig. 3k) and feeding it through the switch 12 (Fig. ЗЖ) to the inputs of the memory block 5, recording the initial information in the memory block 5,. (Fig. 3ej). After setting the level

units at the inputs of the installation of the counter 3 and trigger 4 for each pulse from the splitter 2 frequency there is a consistent increase in the state of the counter 3 per unit, starting

from zero state of counter 3 at the beginning of the cycle. In this case, from the first area of the memory block 5 (since the trigger 4 is set to the zero state), the recorded information is sequentially read to the addresses generated by the counter 3. The first code 6 converter - voltage converts the sequence of counted codes into analog form, i.e. in the electrical signal of the generated pulse. This signal is fed to the input of the reference voltage of the second converter 7 code - voltage and passes to

its output is with an amplitude proportional to the code at the inputs of the code converter coming from the second register 9 (since the control input of the second register 9 enters

low potential since the first trigger output 4).

After the counter 3 reaches the maximum state, the next pulse from the splitter 2 of the frequency, the counter 3 is set to the zero state, and the trigger 4 by the pulse from the overflow output of the counter 3 to the single state. You3

The potential from the direct output of the trigger 4 is fed to the control inputs of the first 8 and second 9 registers, prohibiting its passage to it. the outputs of the information stored in them, low potential from the inverse output of the trigger 4 is fed to the inputs. control the third 10 and fourth 11 registers. After that, the frequency divider 2 starts operating with a different conversion factor determined by the contents of the third register 10, the gain factor code for the second converter 7, the voltage code arrives from the fourth register 11. The high potential from the direct output of the trigger 4 arrives through the switch 12 to the upper one the address of the address of memory block 5, permits reading from another memory area of memory block 5, and

404

counting the pause duration with the simultaneous generation of a compensating effect. The work of the remaining units of the device is similar.

After the counter 3 reaches the maximum state again, the next pulse from the splitter 2 frequency counter 3 is set

to the zero state, the trigger 4 by the pulse from the output of the overflow of the counter 3 - to the zero state, the formation of the next pulse begins, i.e. the whole cycle is repeated from the beginning.

The change of codes in any of the registers 8.9., 10.11 and in the memory block 5 is performed only in the idle state of the device and is exactly the same

the same as when loading the initial states of all blocks.

but

Setting the initial states

2

R

PaSoma FIG. 3

Claims (1)

A PULSE PROCESS GENERATOR FOR CONTROL OF AN ELECTRODYNAMIC SHOCK STAND, comprising a pulse generator, a frequency divider and a counter, a control unit, the first output of which is connected to the synchronization input of the first register, the outputs of which are connected to the corresponding inputs of the frequency divider, a memory unit, the synchronization input of which is connected to the second output of the control unit, a series-connected source of reference voltages, the first and second converters code - voltage, the second reg page, the synchronization input of which is connected to the third output of the control unit, characterized in that, in order to increase the accuracy of the formation of the pulse process with an arbitrary waveform, it contains a third register, fourth register, trigger, switch, the outputs of which are connected to the address inputs of the memory unit, the information inputs of which are connected to the first group of outputs of the control unit and the information inputs of the first, second, third registers and the fourth register, the synchronization input of which is connected to the fourth the output of the control unit, the second group of outputs of which is connected to the first group of inputs of the switch, the first group of inputs of which is connected to the corresponding outputs! the counter and the first trigger output, the second output of which is connected to the control inputs of the third register and the fourth register, the outputs of which are connected to the inputs of the second code-voltage converter and with the outputs of the second register, the control input of which is combined with the control input of the first register and connected to the first trigger output whose clock input is connected to the counter transfer output, the installation input of which is combined with the trigger installation input and connected to the fifth output of the control unit, • the sixth output of which one with the input of the third register synchronization, the outputs of which are connected to the 'input of the frequency divider, the seventh control unit output is connected to switch control input, the outputs of the storage unit are connected to first inputs of the code converter - voltage.