SU1510101A1 - Arrangement for acoustic diagnosis of radio station - Google Patents

Abstract

The invention relates to radio engineering. The purpose of the invention is to increase the reliability of diagnosis. The device contains a sensor 1 acoustic emission signals, a broadband amplifier driver 2 signals, an extremum extraction unit 3, decoders 4, an indicator 5 and a pulse analyzer 6 consisting of comparators 7, OR 8 and prediction blocks 9, each of which contains a block 10 for selecting the maximum signal, delay 11, keys 12 and 14, RS flip-flop 13 and counters 15. The signal from sensor 1 is fed to amplifier-shaper 2, which, using the allocation unit 3, generates the amplitude values of the extreme values of acoustic emission signal in. These signals are sent to the analyzer 6, which generates a code whose data correspond to the extremum value. Based on the code data, the decoders 4 decide on the state of the radio station being diagnosed and this state is displayed on the indicator 5. 1 slug.

Description

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extremum block 3, decoders 4 indicator 5 and pulse analyzer 6, consisting of comparators 7, OR8 and e and prediction blocks 9, each of which contains a block 10 for selecting the maximum signal, delay 11, keys 12 and 14 , RS flip-flop 13 and counters 15. The signal from sensor 1 is fed to amplifier-shaper 2, which, using block 3, generates

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amplitude values of the extreme values of acousto-emission signals. These signals are sent to the analyzer 5 6, the generating code, the data of which correspond to the extremum value. Based on the code data, the decoders 4 decide on the state of the radio station being diagnosed and this 10 state is displayed on the indicator 5. 1 slug.

The invention relates to radio engineering and can be used in an acoustic diagnostics system of radio stations.

The purpose of the invention is to increase the reliability of diagnosis.

The drawing shows a structural electrical circuit of the proposed device.

The device for acoustic diagnostics of radio stations contains a sensor 1 of acousto-emission signals (AES), a broadband amplifier-form

world 2 signals, block 3 extremes, K decoders 4.1- 4.K, indicator 5, analyzer 6 pulses, consisting of K comparators 7.1-7.K, K elements 8.1-8.K and Qblocks 9.1- 9. To the prediction, each of which contains a block 10 for selecting the maximum signal, delay element 11, primary key 12, RS-trigger / 13, K-1 additional keys 14.1-. 14.K-1, K-1 counters 15.1-15, K-1.

The device works as follows.

Sensor 1, attached to the body of the diagnosed radio station, is designed to remove NPPs, which characterize the operability (state) of the radio station being diagnosed. A continuous signal is fed to the input of the wideband amplifier of the NPP size determination signal and to the extremum extraction unit 3. The latter is designed to provide extreme values of nuclear power plants. The amplitude values of the extremes U;,,, K are fed to the inputs of comparators 7.1–7, K of the analyzer 6 pulses The number of comparators 7.1–7, K is chosen based on the prediction accuracy.

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Comparators 7.1-7.К are intended for selection of amplitudes of extremums of continuous signals.

Consider the operation of the device when the input to the input of the Comparators is 7.1 to 7.K, 1 is extreme (, w, rd is the total number of extremes) of a signal with amplitude Uj, The corresponding comparator 7.1, intended for the separation of NPPs of a given amplitude, is This signal appears and a logical 1 appears at its output, which is fed to the input of RS-flip-flop 13 (S-input) of the corresponding prediction block 9 At the exit of RS-flip-flop 13 a high level signal that opens K-1 additional keys 14, 1-14oK-1, Upon receipt of the next extreme signal 1 + 1, Commercially amplitude U |, the output of the corresponding comparator 7, K is at logic 1, through which opening additional switch 14, K 9.i prediction block is recorded in the counter 15, K. In addition, this signal goes to one of the inputs of the OR element 8 and then to the R input (set to O) of the RS flip-flop 13. RSr flip-flop 13 closes the additional 14.1-14.K-1 keys with the output signal. Consequently, in this case, the fact of the transfer of the state of the NPP P, characterized by the amplitude U; to the state P of the amplitude of the IC, was analyzed. When an extremum with an amplitude Uj, for example, t + 1, arrives at the code of block 3 for extrema, signal 1, which polls counters 15.1-15oK-1 with a given delay, set by element 11: the delay required for recording information in counters 15.1-15, K-1. Zna51

The counters 15.1-15. K-1 are fed to the input of block 10, which selects the maximum value of the counter 15.1-15оК-1.

Let the counter 15.K-1 has the maximum value. Togla at the output of block 10 there is a code of the number of the counter K. This code corresponds to the fact that the value of the subsequent m + 2 extremum will be equal to U with a high probability. The decoders 4.1-4. Based on the code data corresponding to the value / extremum, decide on the state of the radio station being diagnosed. Indicator 5 displays its status.

The polling of the 15.1-15. K-1 counters is carried out by a signal from the output of the RS flip-flop 13, the delayed element 11 of the delay on verms d- "The time af is selected based on the speed of recording information in the counters 15.1-15.K-1"

Claims (1)

Invention Formula A device for acoustic diagnostics of radio stations, containing an acoustic-emission signal sensor, the output of which is connected to the first input of a broadband amplifier-signal conditioner, the output of which is connected to the first information inputs of the pulse analyzer, which includes K comparators, whose inputs are the information inputs of the pulse analyzer, indicator , characterized in that, in order to increase the reliability of diagnostics, an extremum allocation unit is introduced, the input and output of which are connected respectively to the output of the sensor of the emission-emission signals and the second input of the broadband amplifier-signal generator. To decoders, the inputs and outputs of which are connected to the editor EoPapp Compiled by E.Golub Tehred L.Oliynyk Proofreader V.Kabatsiy Order 5830/57 Circulation 626 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., A / 5 responsibly with the information outputs of the pulse analyzer and the indicator inputs, in addition, to the analyzer impulses are introduced to the OR elements, whose inputs are connected to the outputs of the respective comparators, and To the prediction blocks, each of which consists of an RS flip-flop, a master key, a delay element, a maximum signal selection block, K-1 additional keys and K-1 counters, information and clock inputs and outputs of which are connected respectively with the outputs of the corresponding K-1 additional keys, information. the inputs of which are connected to the output of the RS flip-flop, the output of the delay element and the corresponding information inputs of the maximum signal selection block whose output is the output of the prediction block, the output of the RS flip-flop is connected to the first input of the main key whose output is connected to the input of the delay element whose output connected to the read input of the maximum signal selector block, the S-input of the RS flip-flop is the first information input of the block the prediction and connected to the output of the corresponding comparator, the clock inputs K-1 of the additional keys are the clock inputs of the prediction block and connected to the outputs of the respective comparators, the second input of the main key is the second information input of the prediction block and connected to the output of the extremum allocation unit, R-BSHO The RS flip-flop is the input to the O prediction block and is connected to the output of the corresponding RSHI element, the second information inputs of all the K prediction blocks of the union enes and are the second information input of the pulse analyzer, whose information outputs are the outputs of the prediction blocks about Subscription