SU1640712A1 - Dispersion detector - Google Patents

Abstract

This invention relates to analog computing. The purpose of the invention is to expand the dynamic range of the measurement. The device contains a quad 1, an adder 2, a high-pass filter 3, keys 4-6, an analog memory block 7, an averaging block 8, a null organ 9, a module allocation block 10, a reference voltage setting block 11, and comparison elements 12.13 . The proposed device allows measurement and control of the characteristics of random signals. 1 il.

Description

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The invention relates to analog computing and can be used in devices for measuring and controlling the characteristics of random signals.

The purpose of the invention is to expand the dynamic range of change.

The drawing shows the block diagram of the device (for the case when the number of thresholds is two).

The device contains a quadr 1, an adder 2, a high-pass filter 3, keys 4-6, an analog print block 7, averaging block 8, a null organ 9, a module allocation block 10, a reference voltage setting block 11, comparison elements 12 and 13 .

A device for determining the dispersion of random signals operates as follows.

In the initial state, all blocks of the device are zeroed. The signal X arriving at the input of the device is squared with the help of Quad 1 and, passing through the adder 2, is fed to the high-pass filter 3. From the output of the filter, the centered quadrated signal is fed to the input of the key 4, which is opened by the signal from the zero-organ 11. The zero-body generates a control signal at the moments when the input signal passes through zero values. The output voltage of the key is supplied to the memory unit 7, where it is stored until the next time the input signal goes through zero. The output voltage of the storage unit is averaged by block 5. At the same time, the adder 2 is supplied from block 11 by a constant voltage zo, and from the outputs of the keys 5 and 6, respectively, the voltage zi is zo or Z2 - zi, when the input signal module X produced unit 10, will exceed threshold values Xi or X2, respectively.

Claims (1)

Claims An apparatus for determining a dispersion comprising a quad, a zero-organ, a high-pass filter, an analog memory block, an averaging block and a first key, the quad input is connected to the zero-organ input and is the device input, the zero-organ output is connected to the control the first input, the output of which is connected to the input of the analog memory block, the output of which is connected to the input of the averaging block, the output of the high-frequency block is connected to the information input of the first key, characterized in that expanding the dynamic range of measurements, the second and third keys, the adder, the reference voltage setting block, the module allocation module, two reference elements, and the output of the quad connected to the input of the first adder adder, the output of which is connected to the input of the high-pass filter, the first inputs of the first and second comparison elements are connected to the output of the module allocation unit, the input of which is connected to the quad input, the second input of the first comparison element is connected to the first output of the reference voltage setting block, the second output of which is connected to the second input of the second comparison element, the third output of the reference voltage block is connected to the Information input of the second key, the output of which is connected with the input of the second term of the adder, the fourth output the reference voltage block is connected to the information input of the third key, the output of which is connected to the input of the third term of the adder, the fifth output of the reference voltage reference block is connected to the input of the fourth adder adder, the outputs of the first and second comparison elements are connected to the control inputs of the second and third keys, respectively.