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 equipmentInfo
- 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
Links
Landscapes
- Measuring Magnetic Variables (AREA)
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)
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 |
Family
ID=20584939
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) |
-
1974
- 1974-05-12 SU SU2025481A patent/SU491904A1/en active
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