SU1566375A1 - Electric pulse area meter - Google Patents

Abstract

The invention relates to automation and computing and can be used to measure the area of a single electric pulse with the result in digital form. The purpose of the invention is to increase speed. At the output of the voltage divider 1, N constant voltage levels are generated. When a measured pulse arrives, the driver 4 is triggered, then the threshold elements 3.I trigger the drivers 5.I. The pulses from the outputs of the formers 4, 5.I arrive at the control inputs of the corresponding switches 7.I and allow the generator 8 of the reference frequency F _{O to} pass through these keys, and through the corresponding delay elements 6.I connected in series. The pulses through the element OR 9 are fed to the input of the pulse counter 10, where the number of pulses is formed, which is proportional to the area of the measured input signal. Achieving this goal is ensured by the introduction of (N-1) keys and an OR element and a new connection between the meter elements. 2 Il.

Description

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constant voltage levels. When a measured pulse arrives, the shaper 4 is triggered, then the threshold elements 3.1 trigger the shaper 5.1 in turn. The pulses from the outputs of the formers 4.5.1 arrive at the control inputs of the corresponding keys 7.1 and allow the generator frequency 8 of the reference frequency Ґ0 to pass through these keys, and

6.1 delay elements interconnected in series. The pulses through the element OR 9 are fed to the input of the pulse counter 10, where the number of pulses is formed, which is proportional to the area of the measured input signal. Achieving this goal is ensured by introducing (p-1) keys and the OR element and a new connection between the meter elements. 2 Il.

The invention relates to the field of automation and computer technology and can be used to measure the area of a single electric pulse with the result in digital form.

The aim of the invention is to improve the speed of the meter.

FIG. 1 shows a structural diagram of an electric pulse-area meter; FIG. 2 - time diagrams that show his work.

The meter contains a divider 1 voltage, a source of 2 reference voltage, n threshold elements. N, shaper 4 duration of the measured pulse, n-1 shapers 5.1-5. N-1 time interval, n-1 elements 6.1 - 6. p-1 delays, p keys 7.1-7.p, -sampling generator I), element OR 9, counter 10 pulses, and block 11 information output. The input of the divider 1 is connected to the output of the source 2. The first inputs of the elements 3.1 - З.п are connected to the outputs of the divider 1, the minimum level goes to the element 3.1, and the maximum - .id element З.п. The second inputs of the elements 3.1 - Z.p and the input of the imaging device 4 are connected to the bus 12 of the input signal. The input input of the imaging device 5.1 is connected to the output of the element 3.2, the input of the stop to the output of the element 3.1, and the output to the control input of the key 7.1. Accordingly, the start and stop inputs of element 5.2 are connected to the outputs of elements 3.3 and 3.2, and the output to the control input of the key 7.2, etc. The output of the imaging device 4 is connected to the control input of the key 7.p, whose information input is connected to the output of the generator 8 and the input element

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that 6.1. The input of element 6, j is connected to the output of element 6.J-1, where j 2,3, ..., p-1. The outputs of the elements 6.1 - 6.p-1. Connected to the information inputs of the corresponding keys 7.1 - 7.n-1. The inputs of element 9 are connected to the outputs of the corresponding keys

7.1 - 7.p, and the output - to the input of the counter 10, connected by its outputs to the inputs of the block 11.

The meter area of the electric pulse works as follows.

At the output of the divider 1, n constant voltage levels are formed, differing from each other by a quantization step (Fig. 2a). When a measured pulse arrives at input 12 at time tc (Fig. 26), shaper 4 begins to work. At time t. ,, when the measured signal reaches the first quantized level, element 3.1 (Fig. 2c) is triggered, at time t- - element 3.2 (fig. 2d), etc. At the time (t., Element 3.V-1 is triggered (Fig. 2d), at the time: r is element 3.k (Fig. 2e), the last for a given amplitude. Shaper 5.1 starts at time t, shaper 5.2 - at the moment of time t (Fig. 2g, h), etc. At the moment of time t, the shaper 5.U-1 (fig.2i) is triggered „Shutdown of the shaper 5.k-1 coincides with the moment t of the repeated operation of the element 3.R-1 shaper

5.2 - with the moment t of the repeated operation of the element 3.2, the former 5.1 - with the moment t1 of the repeated operation of the element 3.1 (Fig.2i, h, g).

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The area of the measured pulse, as in the well-known, is defined as the sum of the areas of the rectangular pulses of a constant level with durations

о S k-i c БЬ1Х ° Д ° В Formers A, 5.1, 5.2 and 5, k-1, respectively. The pulses from the outputs of the formers 4, 5.1, 5.2, ..., 5, k-1 are fed to the control inputs of the corresponding keys as control signals that allow the pulses of the master oscillator 8 of the reference frequency Fp to pass through these keys. At the information input of the key 7.p, the pulses of the generator 8 come directly, and to the information inputs of the keys 7.1 - 7.P-1 - through the corresponding elements 6.1 - bp-1. Time Ј, the delay of each of the elements 6.1 - bp-1 is chosen from the condition

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Elements 6.1 - B. p-1 provide the separation in time of the pulses of the generator 8, coming through the keys 7.1 - 7. p. The pulses from the outputs of the keys 7.1 to 7.p through the element 9 are fed to the input of the counter Y. As a result, the counter 10 forms the number of pulses proportional to the area of the measured input signal, which enters the counter Y.

In the meter, the pulses at the control inputs of keys 7.1-7.p-1 are present simultaneously with the pulse duration C0 at the control input of the key 7.n, therefore the measurement time in the proposed meter does not exceed the maximum duration Ј and the measured pulse. This is much higher.

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speed of the proposed meter compared with the known.

Claims (1)

Invention Formula An electric impulse area meter containing a voltage divider, the input of which is connected to the output of the reference voltage source, n threshold elements, the first inputs of which are connected to the corresponding outputs of the voltage divider, the input of the measuring instrument is connected to the input of the measuring pulse duration and the second threshold inputs elements, n-1 shapers of the time interval, the stop input and the start input of each time interval shaper are connected to the outputs of the corresponding and subsequent The external elements, respectively, the key, the control input of which is connected to the output of the Shaper of the measured pulse, the master oscillator, the output of which is connected to the information input of the key, p-1 delay elements, the counter and the information output unit connected to the outputs of the counter, o characterized by the fact that, in order to increase speed, n-1 additional keys are introduced into it, and an ISH1 element, the output of which is connected to the counter input of the counter, and the inputs to the key outputs and p-1 additional keys, The controller is connected to the input of series-connected p-1 delay elements, the output of each of which is connected to the information input of the corresponding key. io tj i fj t «tn-1 tt  i L ÑÑu.  t "tn-1 tt fo 0 and t Jgjl i i