SU491904A1 - Device for superstructure and calibration of nonlinear distortion meters in paths of magnetic recording equipment - Google Patents

Device for superstructure and calibration of nonlinear distortion meters in paths of magnetic recording equipment

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Publication number
SU491904A1
SU491904A1 SU2025481A SU2025481A SU491904A1 SU 491904 A1 SU491904 A1 SU 491904A1 SU 2025481 A SU2025481 A SU 2025481A SU 2025481 A SU2025481 A SU 2025481A SU 491904 A1 SU491904 A1 SU 491904A1
Authority
SU
USSR - Soviet Union
Prior art keywords
output
adder
paths
magnetic recording
recording equipment
Prior art date
Application number
SU2025481A
Other languages
Russian (ru)
Inventor
Евгений Александрович Ковальчук
Анатолий Вениаминович Мачульский
Original Assignee
Предприятие П/Я А-3103
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я А-3103 filed Critical Предприятие П/Я А-3103
Priority to SU2025481A priority Critical patent/SU491904A1/en
Application granted granted Critical
Publication of SU491904A1 publication Critical patent/SU491904A1/en

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Description

При подаче сигнала с генератора 1 на модул тор 2 на выходе последнего формируетс  сигнал, модул ци  которого происходит по закону, определ емому генератором 1. Использование умножител  и делителей частоты позвол ет получить требуемые гармоники на входе сумматора. Но в св зи с тем, что на вход сумматора поступает также сигнал и непосредственно с частотного модул тора 2, на его выходе оказываетс  возможным получение сигнала,  вл ющегос  суммой гармоник частотно-модулированного сигнала. Этот общий сигнал и представл ет собой имитацию нелинейных искажений в тракте аппарата магнитной записи при наличии паразитной частотной модул ции. Подава  полученный сигнал на амплитудный модул тор 7, можно осуществить его модул цию по закону, задаваемому выходным генератором 8, что позвол ет имитировать и такой паразитный сигнал, как сигнал , возникающий в св зи с наличием паразитной амплитудной модул ции.When a signal is sent from oscillator 1 to modulator 2, a signal is generated at the output of the latter, which is modulated according to the law determined by oscillator 1. Using the multiplier and frequency dividers produces the required harmonics at the input of the adder. But since the adder also receives the signal directly from the frequency modulator 2, at its output it becomes possible to receive a signal that is the sum of the harmonics of the frequency modulated signal. This common signal is an imitation of nonlinear distortions in the path of the magnetic recording apparatus in the presence of spurious frequency modulation. By delivering the received signal to the amplitude modulator 7, it can be modulated according to the law defined by the output generator 8, which allows simulating such a parasitic signal as a signal arising from the presence of parasitic amplitude modulation.

Как можно видеть, требуемый эффект определени  степени вли ни  паразитных сигналов на результаты измерений достигаетс  весьма простыми средствами, что к тому жеAs you can see, the desired effect of determining the degree of influence of spurious signals on the measurement results is achieved by very simple means, which, moreover,

упрощает сам процесс поверки аппаратуры измерени .simplifies the process of calibration of measurement equipment.

Claims (1)

Формула изобретени  Invention Formula Устройство дл  настройки и поверки измерителей нелинейных искажений в трактах аппаратуры магнитной записи, содержащее входной и выходной генераторы, а также последовательно соединенные образцовый делитель напр жени  и сумматор, отличающеес  тем, что, с целью повышени  точности определени  степени вли ни  паразитных сигналов на результаты проводимых измерений и упрощени  процесса поверки, оно снабжено последовательно соединенными частотным модул тором и умножителем частоты, включенными между входным генератором и образцовым делителем напр жени , дополнительным аналогичным делителем напр жени , включенным между вторым выходом умножител  частоты и сумматором, а также амплитудным модул тором, включенным между выходом сумматора и выходным генератором, при этом выход частотного модул тора также соединен с отдельным входом указанного сумматора .A device for tuning and calibrating nonlinear distortion meters in the paths of magnetic recording equipment, containing an input and output generators, as well as series-connected exemplary voltage divider and adder, characterized in that, in order to improve the accuracy of determining the degree of influence of spurious signals on the results of measurements and simplify the verification process, it is equipped with series-connected frequency modulator and frequency multiplier, connected between the input generator and the exemplary divisor of voltage corresponding additional voltage divider connected between the second output of the frequency multiplier and the adder, and an amplitude modulator, connected between the output of the adder and an output generator, wherein the output frequency of the modulator is also connected to a separate input of said adder. 5,WA5, WA
SU2025481A 1974-05-12 1974-05-12 Device for superstructure and calibration of nonlinear distortion meters in paths of magnetic recording equipment SU491904A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2025481A SU491904A1 (en) 1974-05-12 1974-05-12 Device for superstructure and calibration of nonlinear distortion meters in paths of magnetic recording equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2025481A SU491904A1 (en) 1974-05-12 1974-05-12 Device for superstructure and calibration of nonlinear distortion meters in paths of magnetic recording equipment

Publications (1)

Publication Number Publication Date
SU491904A1 true SU491904A1 (en) 1975-11-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU2025481A SU491904A1 (en) 1974-05-12 1974-05-12 Device for superstructure and calibration of nonlinear distortion meters in paths of magnetic recording equipment

Country Status (1)

Country Link
SU (1) SU491904A1 (en)

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