SU1582175A1

SU1582175A1 - Apparatus for measuring small time intervals between sequences of pulses of rectangular form

Info

Publication number: SU1582175A1
Application number: SU884374402A
Authority: SU
Inventors: Виктор Борисович Немировский; Олег Игоревич Воронин; Владимир Владимирович Нежельский
Original assignee: Предприятие П/Я Г-4273
Priority date: 1988-02-04
Filing date: 1988-02-04
Publication date: 1990-07-30

Abstract

Изобретение относитс к измерительной технике и может быть использовано при измерении малых временных интервалов между последовательност ми импульсов пр моугольной формы. Целью изобретени вл етс повышение точности измерени . Цель достигатс введением в устройство дл измерени малых временных интервалов между последовательност ми импульсов пр моугольной формы элемента 10 задержки и триггера 11. Устройство содержит также триггер 1, коммутатор 2, элементы И 3, 4, элементы 5, 6 задержки, элемент ИЛИ 7, формирователь 8 и селективный блок 9. 2 ил.The invention relates to a measurement technique and can be used in measuring small time intervals between sequences of rectangular pulses. The aim of the invention is to improve the measurement accuracy. The goal is achieved by introducing into the device for measuring small time intervals between rectangular pulse pulse sequences of delay element 10 and trigger 11. The device also contains trigger 1, switch 2, elements AND 3, 4, elements 5, 6 of delay, element OR 7, driver 8 and selective block 9. 2 Il.

Description

-Plr/ J ,-Plr / j

rrhirrhi

%1Щ% 1Shch

atat

AA

r/r /

tt

u(t)u (t)

Фиг. 2FIG. 2

ЯI

W(t)W (t)

Claims

Claim

A device for measuring small time intervals between sequences of pulses of a rectangular shape, comprising a counting trigger, a switch, two AND elements, a constant and a variable delay elements, an OR element, a driver, a selective block, two input buses and an output bus, the first input bus of the device being connected to the first input of the switch, the second input of the first AND element and the counting input of the trigger, the direct and inverse outputs of which are connected to the first inputs of the first and second elements AND, respectively, the outputs which through constant and variable delay elements are respectively connected to the diagrams explaining the operation of the device are shown in figure 2, where a is the pulse of the sequence on the input bus 12; b - sequence pulses on the input bus 13; in - pulses at the output of the element And 3; g - pulses at the output of element I. 4; d pulses at the output of the element OR 7; e - pulses at the output of the delay element 10; g — pulses at the output of trigger 11; s - pulses of the output sequence U ₅ (t); and - pulses of the output sequence U2 (t).

Using a selective block 9 at the output of trigger'11, the amplitude of the output and the second inputs of the 1ShI element is measured, the output of which is connected to the input of the driver, and the second input of the second element And is connected to the output of the switch, the second input of which is connected to the second input bus of the device, characterized in that, in order to increase the measurement accuracy, a delay element and an RS-trigger are additionally introduced into it, the S-input of which is connected to the output of the driver, which is the output of the device, the R-input is connected through the delay element to the first input of the device properties, and the output of the RS-trigger is connected to the input of the selective block. ''