SU789841A2 - Voltage increment digital meter - Google Patents

Description

one

The invention relates to computing.

A digital voltage increment meter is known, comprising counters, a pulse generator, and valves Ctl

However, the functionality of this device is limited.

According to the main auth. 337726-known digital voltage increment meter that contains the first switch, the outputs of which are connected to the information inputs of the first and second counters, and the input is connected to the first output of the converting device, the second output of which is connected to the first inputs of the elements through the first delay element and the second delay element is connected to the output of the second switch and to the first inputs of the rewrite gates and the first input of the first trigger; the first input of the second switch is connected to the inputs of the first the second input is connected to the output of the clock generator, and the third input is connected to the input of the first switch, the outputs of the first counter are connected to the second inputs of the rewrite gates, the outputs of which are connected to the inputs of the second counter, the second inputs of the first and second triggers are connected with pulse outputs of the first and second counters, the output of the first trigger is connected to the second inputs of the elements AND, and the first and second outputs of the second trigger are connected respectively to the third inputs of the elec ENTOV And output of the first

0 of the And element is connected via the third delay element with the first inputs of the first group of read gates and with the matching inputs of the second counter; the output of the second And element is connected to

The 15 second inputs of the second read valve group, the read outputs of the second counter are connected to the second inputs of the first group of read valves J and the outputs of the two read valve groups are connected to the inputs of the digital indicator G2.

However, the device has limited capabilities.

The purpose of the invention is to expand the functionality.

This goal is achieved by the fact that the digital displacement meter contains two counters, rewrite gates, two triggers, a conversion device, a digital indicator, two switches, a clock generator, three delay elements, two I elements, two groups of read gates, and a block control, operative memory, information rewriting device, comparison unit, summation unit and indicator device, the control outputs of the control unit being connected respectively to the control inputs of the device rewrites, information, operative storage, comparison unit, summation unit, indicator device, first switch and second trigger, information inputs of operative storage device are connected to the outputs of the first reading valve group, and rewriting inputs are connected to outputs of the device for rewrite information the first output of the operative memory is connected to the nepBfciM input of the comparison unit, and the remaining outputs are connected to the inputs of the summation block, and the output of which is connected It is not connected with the second input of the comparison unit, the output of which is connected to the input of the indicator device.

The structural electrical circuit of the device is shown in the drawing.

The device contains counters 1 and 2 interconnected by overwriting valves 3-6 ,. a conversion device 7 connected via a switch 8 to counter inputs, triggers 9 and 10, circuits, elements 11 and 12, two groups of valves 13-16 and 17-20, readings 21, 22, 23 delays, a generator of 24 cycles, switch 25, a digital indicator 26, a random access memory 27, an information rewriting device 28, a summation unit 29, a comparison unit 30, an indicator device 31, a control unit 32.

The device works as follows.

The signal from block 32 switches 8 to the position a, and switch 25 to the position c. The impulse start from block 32, the counter 1 and the trigger 10 are set to the zero state. The same impulse, delayed element 23, starts the conversion device 7, which converts the initial value UQ to a pulse number code. Counter 1 counts the pulses from the conversion device 7. Since the number of bits of counter 1 is chosen based on the maximum value of the voltage increment, then counter 1 is repeatedly overfilled. After each re-transmission, trigger 10 changes its state. By impulse from block 32, switch 8 is set to position b, and switch 25 is set to position G.

A 24 clock generator is connected to the input of the device. At the moment the clock pulse arrives, the number in the inverse code is stored, which is stored after the initial conversion in counter 1, to counter 2 and the trigger 9 is set to the zero state. With the delayed pulse, the converting device 7 is started and the current value of the voltage U (t) is converted into a number-pulse code. In this case, the pulses are counted by the counter 2 and after each overflow the state of the trigger 9 changes.

5 read pulse, which, after a delay by element 22, polls elements 11 and 12. If the current voltage value and (1) is less than or equal to the initial voltage Ud, the number

0 switching of counter 2 is equal to the number of overflows of counter 1, since the number of bits of both counters is the same and the capacity of each counter is greater than the maximum increment value in digital form. In this case, the triggers 9 and 10 after the next transformation are in the same state. In this case, when oprLe provides a coincidence of the signals on the element And 12, the output pulse

0 which, through a group of matching valves 13–16 connected to the zero outputs of counter 2, reads a negative voltage increment - & and in parallel parallel

5 binary code.

If the current value of the voltage U (t) is greater than the initial one, the state of the flip-flops 9 and 10 is different and the coincidence of the signals during polling occurs on the And 11 match element. The output signal of the And 11 element adds one pulse to the counter 2 and, after the delay, the element 21 reads the value of the voltage increment. L and in the parallel binary code with the help of a group of gates 17-20 read from single outputs of the counter 2 trigger signals. By a signal from the block 32 of the pulse code information

0 increments are recorded in the operational storage device 27, Block 30 compares the increments. Block 30 by. the signal from block 32 gives a signal to the device 31 Norm,

Claims (1)

Invention Formula Digital voltage incrementing gauge No. 337726, which is characterized by the fact that, in order to expand the functionality, a control block, a memory device, an information rewriting device, a block comparison, summation block, indie