SU1385282A1 - Device for amplitude analysis - Google Patents

Abstract

The invention relates to a pulse technique and can be used in spectrometers intended for space research. The image allows the device to expand its functionality, which is achieved by measuring the envelope values of the amplitudes of the pulses of a random sequence. The device contains a block 1 setting threshold levels, a differential analyzer 2 pulses, eight-input elements IL-3-10, RS-triggers 11-14. All the elements OR and RS-triggers form the decoder channel number analyzer 2 pulses in the binary position code. The operation of the device is explained in the table attached in the description of the invention. At the output of the device, a signal is generated that corresponds to the envelope of the amplitudes of the pulses of a random sequence. 2 ill., 1 tab. S (l

Description

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The invention relates to a pulse technique and can be used in spectrometers intended for space research.

The aim of the invention is to expand the functionality by making it possible to measure the values of the amplitude envelope of the pulses of a random sequence.

FIG. 1 is a block diagram of a device for amplitude analysis; in fig. 2 is a time chart illustrating the operation of the device.

The device for amplitude analysis contains a block 1 of setting threshold n levels, the outputs of which are connected to the reference inputs of the n-channel differential analyzer 2 pulses, the inputs of which are the inputs of the device, and 2 K n / 2 input elements OR 3.4 , 5,6,7,8,9,10, and K P / 2-INPUT elements OR form the first group, the rest - the second, and the corresponding outputs of the n-channel differential analyzer 2 pulses are connected to the corresponding inputs of P / 2-INPUT elements ШШ 3-10, outputs connected to the corresponding input E RS- flip-flops 11-14, straight outputs are connected to address inputs of the analog multiplexer 15, PIN, formational inputs of which are connected to respective outputs of block n 1 n specifying threshold levels, the analog output of the multiplexer is unit vkodom

The device works as follows (for definiteness: let us take clause 16).

The unit 1 for setting threshold levels imposes a series of voltages on the inputs, comparing the comparators of the analyzer 2 pulses, the operation levels of which increase with the channel number, the analyzer 2 processes the input pulses and the signal only on the output whose number corresponds to the number of the threshold level U of the block 1 setting the code levels in the case.

if and k, and - i and

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8-input elements OR 3-10 together with RS-triggers 11-14 form the decoder of the channel number of the analyzer 2 pulses into a binary position code (see table).

If the amplitude of the input pulse is in the range between the first and second threshold voltages of the block 1 setting the threshold levels, then at the first output of the analyzer 2

pulses, a signal appears which, via elements 3-6-6, respectively sets the RS-flip-flops 11-14 to the zero state (code 0000) regardless of their previous state.

The zero output signals of the RS-trigger 11-14 are fed to the corresponding address inputs of the analog multiplexer 15, which connects the voltage of the first level to the output

devices. This voltage is stored at the output of the device until the next pulse arrives, for example, at the 16th output of the analyzer, 2 pulses through RS-7-10 elements circulate RS-triggers 11-14 into one state (this means that the amplitude of the input pulse has exceeded the threshold level of the 16th channel). The analog multiplexer 15 responds to a single state to a new code (1111) by switching the 16-volt threshold voltage of the unit 1 to set threshold levels to the device output, The signal that occurred at the seventh output of the analyzer 2 pulses, through the OR 3 and 6 elements reset the RS-flip-flop 11-14 to the zero state, and through the OR elements 8 and 9 confirm the single state of the RS-flip-flops 12 and 13. The output code (0110) will connect the seventh threshold level of the unit 1 using analog multiplexer 15 set to exit. Further operation of the device for amplitude analysis proceeds, similarly with the arrival of the following pulses. Thus, at the output of the device, there is a signal corresponding to the envelope of the amplitudes of the pulses of a random sequence.

Claims (1)

Invention Formula OR, it is different that, in order to expand the functionality by providing the measurement of the envelope values of the amplitudes of the pulses of a random sequence, K RS-flip-flops, an analog multiplexer, are introduced into it, and K P / 2-INPUT elements OR form the first group, the rest are second, the outputs of the n-channel differential analyzer are divided into n / 2 -subgroups, where K e1 ... log, p, for each K, the odd groups of outputs of the n-channel differential analyzer are connected to the corresponding inputs of K- о n / 2-input element ШШ of the first group, and even subgroups of outputs of the n-channel differential analyzer are connected to the corresponding inputs of the K-th n / 2-input element OR of the second group, output of the K-th p / 2- input element OR of the first group connected to the zero input of the K-th RS-trigger, the output of the K-th n / 2-input element OR of the second group is connected to the single input of the K-th RS-flip-flop, the direct outputs of all RS-flip-flops for The device for amplitude analysis-2Q is connected to the analogue address inputs, which contains the block setting AND threshold levels, the outputs of which are connected to the reference inputs of the n-channel differential pulse analyzer, the inputs of which are the device inputs, 2K n / 2 input elements 35 A multiplexer, whose information inputs n are connected to the corresponding n outputs of the unit for setting the threshold n levels, and the output of the analog multiplexer is the output of the device. 3 connected to the address inputs of the analog A multiplexer, whose information inputs n are connected to the corresponding n outputs of the unit for setting the threshold n levels, and the output of the analog multiplexer is the output of the device.