SU1437786A1

SU1437786A1 - Optronic measuring device

Info

Publication number: SU1437786A1
Application number: SU874225619A
Authority: SU
Inventors: Владимир Борисович Архангельский; Альберт Борисович Бахменд; Сергей Федорович Глаголев
Original assignee: Научно-Исследовательский Институт По Передаче Электроэнергии Постоянным Током Высокого Напряжения
Priority date: 1987-04-08
Filing date: 1987-04-08
Publication date: 1988-11-15

Abstract

Изобретение относитс к технике измерени напр жений и токов в цеп х высокого напр жени . Оптико-электронное измерительное устройство содержит источники излучени 1, 2, сумматор 7, калибраторы 9, 14, оптические каналы 3, 4, фотоприемники 5, 6, измерительный преобразователь 8, генератор 10 псевдослучайной последовательности , коррел тор 11, регулируемый усилитель 12, блок 13 задержки, вы- читатель 15, регистратор 16. Устройство позвол ет повысить точность из- Q мерений. 1 ип. SThis invention relates to a technique for measuring voltages and currents in high voltage circuits. The optoelectronic measuring device contains radiation sources 1, 2, adder 7, calibrators 9, 14, optical channels 3, 4, photodetectors 5, 6, measuring transducer 8, generator 10 pseudorandom sequence, correlator 11, adjustable amplifier 12, block 13 delays, a reader 15, a recorder 16. The device allows to increase the accuracy of measurements of Q measurements. 1 pe. S

Description

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Изобретение относитс к измерительной технике и может быть использовано в технике высоких напр жений дл дистанционного измерени переменного и импульсного напр жени или тока в электрических цеп х, наход щихс под высоким потенциалом относительно земли.The invention relates to a measurement technique and can be used in a high voltage technique for remotely measuring alternating and pulsed voltages or currents in electrical circuits that are under high potential with respect to earth.

Цель изобретени повышение точности измерений,The purpose of the invention is improving the accuracy of measurements

На чертеже приведена структурна схема оптико-электронного измеритель ного устройства.The drawing shows a structural diagram of an optoelectronic measuring device.

Первый 1 и второй источники излу- J5 ности. Коррел тор 11 вырабатьшает чени св заны через первьй 3 и второй напр жение, проп орциональное взаимной 4 оптические каналы с первым 5 и вто-- рым 6 фотоприемниками. Сумматор 7 соединен первым входом с измерителькоррел ционной функции напр жений на его входах, которое управл ет регулируемым усилителем 12 таким образом.The first 1 and second sources of radiation are J5. The correlator 11 generates a pair through the first 3 and second voltage, the mutual support of the 4 optical channels with the first 5 and the second 6 photodetectors. The adder 7 is connected by a first input to a voltage correlation function meter at its inputs, which controls the adjustable amplifier 12 in this way.

коррел ционной функции напр жений на его входах, которое управл ет регулируемым усилителем 12 таким образом.the correlation function of the voltages at its inputs, which controls the adjustable amplifier 12 in this way.

ным преобразователем 8, вторым входом20 чтобы взаимна коррел ционна функци через первьй калибратор 9 - с вторым фотоприемником 6, а своим выходом - с первым источником 1 излучени . Генератор 10 псевдослучайной последовательности подключен к второму источнику 2 излучени и через коррел тор 11 к управл ющему входу регулируемого усилител 12, а также через блок 13 задержки и второй калибратор 14 - к второму входу вычитател 15, Пер- вый вход вычитател 15 соединен через регулируемый усигштель 12с первым фотоприемником 5, а выход вычитател 15 соединен с регистратором 16 и вторым входом коррел тора 11,A second converter 20, a second input 20 so that the mutual correlation function through the first calibrator 9 with the second photodetector 6, and its output with the first source 1 of the radiation. The pseudo-random sequence generator 10 is connected to the second radiation source 2 and through the correlator 11 to the control input of the adjustable amplifier 12, as well as through the delay block 13 and the second calibrator 14 to the second input of the subtractor 15, the first input of the subtractor 15 is connected via an adjustable usstigtel 12 with the first photodetector 5, and the output of the subtractor 15 is connected to the recorder 16 and the second input of the correlator 11,

Устройство работает следующим об- разомсThe device works as follows.

Генератор 10 вьфабатывает псевдослучайную последовательность пр моугольных однопол рных импульсов, которые вторым источником. 2 излучени преобразуютс в импульсы излучени и через второй оптический канал 4 поступают на второй фотоприемник 6,The generator 10 amplifies a pseudo-random sequence of rectangular unipolar pulses that are second source. 2 radiation is converted into radiation pulses and through the second optical channel 4 is fed to the second photodetector 6,

напр жений на входах коррел тора стре милась к нулю. Это обеспечиваетс при равенств е амплитуд импульсов псев дослучайной последовательности на обоThe voltages at the inputs of the correlator of the torus have tended to zero. This is ensured when the amplitudes of the pulses of the pseudo-random sequence on both

Z5 их входах вычитател 15, Если равенст во вьтолн етс , то на регистратор поступает сигнал, равный сигналу с изме рительного преобразовател 8.Z5, their inputs of the subtractor 15; If the equality is satisfied, then the recorder receives a signal equal to the signal from the measuring transducer 8.

Таким образом, в устройстве осу30 ществл етс калибровка псевдослучайным сигналом и благодар этому повышаетс точность измерений.Thus, the device performs pseudo-random signal calibration and thereby improves measurement accuracy.

Claims

The invention of the optically electronic measuring

a device containing two radiation sources, the electrical input of the first of which is connected to the output of an adder connected by its inputs to the outputs of the measuring converter and the first calibrator, the radiation sources through two optical channels are connected respectively to the first and second photodetectors, the output voltage the second photodiadem is the electrical output of the first feline 6 is converted by the second calibrator 9 into voltage pulses with a calibrated amplitude. These pulses by the adder 7 are summed from the signal the transducer 8 is scraped and converted by the first source 1 to radiation, which is fed to the first photodiode 5 by the first optical channel 3. The extra voltage of the first photodetector 5 passes through the adjustable amplifier 12 to the first input of the subtractor 15. The output voltage of the generator 10 pseudo-random sequence passes block

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The receiver is connected to the input of an adjustable amplifier, the output of which is connected to the first input of the relay, a recorder, characterized in that, in order to improve measurement accuracy, BBej; eHH is a pseudo-random sequence generator, a correlator, a delay unit, and a second calibrator, with the pseudo-generator of the pseudo-random sequence the sequence is connected to the inputs of the second radiation source, the ZS block of the holder and the first input of the correlator; the code of the delay unit is connected to the second caliber

13 delay, the second calibrator 14, which calibrates the pulses of a pseudo-random sequence in amplitude, and arrives at the second input of the reader 15, the delay time in block 13 is equal to the delay of the pseudo signal of the signal received when it passes to the first input of the subtractor 15, the output of the subtractor 15 is fed to the recorder and to the second input of the correlator 11, the first input of which receives the voltage from the output of the generator 10 of a pseudo-random sequence. The correlating torus 11 builds the tension, prop rational mutual

the correlation function of the voltages at its inputs, which controls the adjustable amplifier 12 in this way.

so that the mutual correlation function

The voltage at the inputs of the correlator tends to zero. This is ensured when the amplitudes of the pulses of a pseudo-random sequence at both inputs of the subtractor 15, If equality is satisfied, then the recorder receives a signal equal to the signal from the measuring transducer 8.

Thus, the device is calibrated with a pseudo-random signal and thereby improves the measurement accuracy.

Optical Electron Measuring Instrument

a device containing two radiation sources, the electrical input of the first of which is connected to the output of an adder connected by its inputs to the outputs of the measuring converter and the first calibrator, the radiation sources through two optical channels are connected respectively to the first and second photodetectors, with 0

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The receiver is connected to the input of an adjustable amplifier, the output of which is connected to the first input of the relay, a recorder, characterized in that, in order to improve measurement accuracy, BBej; eHH is a pseudo-random sequence generator, a correlator, a delay unit, and a second calibrator, with the pseudo-generator of the pseudo-random sequence the sequence is connected to the inputs of the second radiation source, the ZS block of the holder and the first input of the correlator; the code of the delay unit is connected to the second caliber U37786

A rator connected by its output to the correlator is connected to the controller with the second input of the subtractor, the output of the controlled amplifier, which is connected to the input of the registrar, and the output of the second photoreceptor of the connector, and the second input of the first calibrator.