SU686009A1 - Device for measuring time intervals in aperiodic pulse trains - Google Patents

Description

one

The invention relates to the field of instrumentation and control and can be used to measure the temporal characteristics of soft-command devices.

A device for multi-channel measurement of time intervals in non-periodic pulse sequences is known, comprising a channel feature register, an OR element, a switch, a memory device, an address register, a register counter, a digital indicator.

This device is cumbersome, has a large power consumption, low reliability in operation.

Closest to the invention in its technical essence is a device for measuring time intervals in non-periodic pulse sequences; containing a reference frequency generator, a code converter, a memory device, a register counter connected by one input through a switch to a reference frequency generator and a second input to a device input, one output to a memory device and a second output to a code converter, an address register, connected by an input to the register-counter input and through a switch to the device’s bypass, one output from the memory device, a second output to the code converter, a digital indicator connected to a code distributor, a switch connected by outputs with a code converter and a digital indicator t, respectively.

The disadvantage of the device is its complexity.

The aim of the invention is to simplify the design.

In order to achieve the goal in the proposed device, the address register is connected by a second input through a switch to the outputs of the register counter.

Claims (2)

The drawing shows a block diagram of the described device. The device contains the address register, register-counter 2, memory 3, generator 4 of the reference frequency, code converter 5 ,. switch 6, digital indicator 7, switches 8 and 9. The device works as follows. HQ register 1 and register-counter 2 step through a switch in the Measurement mode a non-periodic sequence of pulses. The first impulse sets the address equal to the register 1 and resets the counter 2 to the O register. The counter 2 registers produce an impulse counting reference; frequencies fed by oscillator 4; The contents of register counter 2 are continuously recorded in the memory cell 3 with an address equal to. The second pulse of the sequence causes the addition of the next unit to the contents of the address register 1 and resets the register-counter 2 to O. The register 1 sets the cell address equal to 2. The register-counter 2 again counts the pulses of the reference frequency, but its contents are written into the memory cell devices 3 with an address equal to 2. In cell e, address 1 remains a code of a number equal to the contents of register-counter 2. The third pulse of the sequence sets the address on the register of address 1 to be 3 a c. A number code remains in the memory cell 3 with address 2, which expresses the duration of the time interval between the second and third pulses, etc. In the Display mode, switch 8 turns off the input signal, switching the telephone 9 of address register 1 sets c to O, and from the register output -account 2 commutes the frequency of the address range, Perimeter-counter 2 provides division by 2 frequencies of the generator 4, the reference frequency, where n is the corresponding digit of register counter 2; the address number 1 is interrogated by one of the memory of the memory Paragraphs 3, in which codes of numbers are written, characterizing the duration of non-periodic signals. The contents of the address register 1 and the storage device 3 are fed to a code converter 5 and are displayed on a digital indicator 7. The register counter 2 takes over the functions of the address change generator, i.e., by connecting the outputs of the register counter 2 through switch 9 with the address register output 1, using the reference frequency generator, sets the address tempo in the Display mode, Formula from the acquisition of a device for measuring time intervals in non-periodic pulse sequences, containing a reference frequency generator, converting code reader, memory device, register counter connected by one input through a switch to a reference frequency generator and a second input to a device input, one output to a memory device and a second output to a code converter, an address register connected to the input of a register counter and through a switch with a device input, one output - with a memory device, a second output - with a code converter, a digital indicator connected to the code converter, a switch connected by an output and respectively with a code converter and a digital display, characterized in that. In order to simplify the construction, the address register is connected to the second input through a switch with the outputs of the counter register. Sources of information taken into account during the examination 1. USSR author's certificate No. 51968О, cl. Q 04 10/04, 1975. 2, USSR Copyright Certificate MI 411428, cl. Q 04 R 10/02, 1973 (prototype).