SU1280564A1 - Device for measuring pulse duration - Google Patents

Abstract

The invention relates to electrical measuring equipment and can be used in measuring equipment for various purposes. The purpose of the invention is to improve the measurement accuracy. According to the proposal, a signal transform of the signal carrying information about the measured time interval is carried out. The selector is at a given level, the pulses of maximum amplitude and measurement of the time interval is taken. Before the linear transformation, the input signal is branched into N identical channels, and after selection in each channel, the output signals of the channels send a logical multiplication in groups of N by M, where M is a whole part of the number

Description

The invention relates to a pulse technique and can be used to measure the pulse duration at a given level.

The aim of the invention is to improve the measurement accuracy.

The drawing shows a block diagram of a device for measuring the pulse duration.

The device contains N channels

1.1,1.2, 1.3 pulse shaping (for example,), each of which includes serially connected input unit 2 of linear transformation and amplitude selector 3, K With elements And 4.1,

4.2,4.3, the element OR 5 and the meter 6 time intervals, and the inputs of each of the channels of the formation are connected to the input bus 7 of the device, and the outputs are grouped into 3 groups: the output of channel 1 .1 is connected to the inputs of the elements AND 4.1, 4.2, channel 1.2 output - with inputs of elements 4.1 and 4.3, channel 1.3 output - with inputs of elements 4.2 and 4.3; the outputs of the elements And 4.1-4.3 connected to the inputs of the element OR 5, the output of which is connected to the input of the meter 6 time intervals.

The device works as follows.

The input pulse in each channel is 35 with the inputs of the N elements AND, the outputs of the 1-formation are subjected to linear to the terminals connected to the inputs of the element

OR, the output of which is connected to the input of the interval meter.

transformation in block 2. Amplitude selector (for example, Comparaor I.Rybchenko 7064/51

Compiled by Shishkin Tehred N.Glushchenko

Corr Sub

Tyra 398 VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

. Production and printing company, Uzhgorod, Projecto st., 4

805642

The torus) 3 forms, at a given level, from a linearly transformed pulse, a time interval bounded by the front and edge of the input pulse. Elements 4 form pulses, the duration of which is determined by the mutual arrangement of the edges and cuts of signals in each of the K groups, and the OR 5 element selects a measuring pulse whose edges and cuts are located in the middle of the total set of N pulses. A time interval meter 6 measures the duration of a pulse formed by the element OR 5.

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Claims (2)

The invention relates to a pulse technique and can be used to measure the pulse duration at a given level. The aim of the invention is to improve the measurement accuracy. The drawing shows a block diagram of a device for measuring pulse duration. The device contains N channels 1.1,1.2, 1.3 pulse shaping (for example,), each of which includes serially connected linear conversion input unit 2 and amplitude selector 3, elements AND 4.1, 4.2.4.3, element OR 5 and meter 6 time intervals, the inputs of each of the channels of the formation are connected to the input bus 7 of the device, and the outputs are grouped into 3 groups: the output of channel 1 .1 is connected to the inputs of the elements 4.1, 4.2, the output of channel 1.2 - with the inputs of elements 4.1 and 4.3 , the output of channel 1.3 - with the inputs of the elements And 4.2 and 4.3; the outputs of the elements And 4.1-4.3 are connected to the inputs of the element OR 5, the output of which is connected to the input of the meter 6 time intervals. The device works as follows. The input pulse in each channel 35 of the formation is subjected to a linear transformation in the block 2. The amplitude selector (for example, a comparator 42 torus) 3 forms, at a given level, from a linearly transformed pulse, a time interval bounded by the front and edge of the input pulse. Elements 4 form pulses, the duration of which is determined by the mutual arrangement of the edges and cuts of signals in each of the K groups, and the OR 5 element selects a measuring pulse whose edges and cuts are located in the middle of the total set of N pulses. A time interval meter 6 measures the duration of a pulse formed by the element OR 5. An invention of a device for measuring the duration of pulses comprising an input bus connected to an input of a formation channel consisting of a linearly-connected linear conversion unit and an amplitude selector, and a time interval meter differing from the fact that, in order to improve the measurement of the duration of the pulse, it additionally includes N elements AND, the OR element and N-1 formation channels, moreover, the inputs of the N-1 formation channels are connected to the input bus, and the outputs of the N formation channels are connected to the corresponding inputs of the N elements AND whose outputs are connected to the inputs of the OR element whose output is connected to the input of the interval meter.