SU670903A1 - Arrangement for measuring coefficient of signal harmonics versus frequency responce characteristic - Google Patents
Arrangement for measuring coefficient of signal harmonics versus frequency responce characteristicInfo
- Publication number
- SU670903A1 SU670903A1 SU782569847A SU2569847A SU670903A1 SU 670903 A1 SU670903 A1 SU 670903A1 SU 782569847 A SU782569847 A SU 782569847A SU 2569847 A SU2569847 A SU 2569847A SU 670903 A1 SU670903 A1 SU 670903A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- characteristic
- arrangement
- versus frequency
- signal harmonics
- measuring coefficient
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
мый фильтр, вход которого соединен с входом устройства и с одним из входов сумматора , преобразователь частоты в напр жение , включенный между выходом генератора испытательного сигнала и управл ющим входом фильтра, делитель, входы которого соединены с выходом фильтра и сумматора , а выход - с индикатором.The filter is connected to the input of the device and one of the inputs of the adder, the frequency converter is connected to voltage between the test signal generator and the control input of the filter, the divider whose inputs are connected to the output of the filter and the adder, and the output to the indicator .
На чертеже показана функциональна схема устройства дл измерени частотной зависимости коэффициента гармоник сигнала .The drawing shows the functional diagram of the device for measuring the frequency dependence of the signal harmonic coefficient.
Устройство содержит источник / испытательного (сигнала, исследуемую систему 2, преобразователь 5 частоты в напр жение, избирательный фильтр 4, сумматор 5, делительное устройство 6 и индикатор 7.The device contains a source / test (signal, system 2 under study, frequency to voltage converter 5, selective filter 4, adder 5, dividing device 6 and indicator 7.
Устройство работает следующим образом .The device works as follows.
Из сигнала, получаемого на выходе системы 2, с помощью избирательного фильтра 4 выдел етс перва гармоника, наход ща с в противофазе с первой гармоникой исследуемого сигнала. Выделенна перва гармоника после фильтра поступает на вход знаменател делительного устройства в и на сумматор 5. На сумматоре осуществл етс компенсаци первой гармоники исследуемого сигнала и на выходе его остаютс только высщие гармоникн, которые поступают на вход числител делительного устройства . Результат делени регистрируетс индикатором 7.From the signal received at the output of the system 2, the first harmonic is extracted using the selective filter 4, which is out of phase with the first harmonic of the signal under study. The selected first harmonic after the filter is fed to the input of the denominator of the dividing device in and to the adder 5. At the adder, the first harmonic of the signal under investigation is compensated and only the highest harmonics remain at the output, which are fed to the numerator of the dividing device. The result of the division is recorded by indicator 7.
Электронна перестройка собственной частоты и фазы фильтра 4 осуществл етс Electronic tuning of the natural frequency and phase of the filter 4 is carried out
управл ющим напр жением, которое поступает на управл ющий вход фильтра с преобразовател 3 частоты в напр жение. Этот преобразователь вырабатывает напр жение , величина которого синхронно измен етс с частотой испытательного сигнала, и процесс перестройки избирательного фильтра и измерени коэффициента гармоники осуществл етс автоматически.control voltage, which is fed to the control input of the filter from the converter 3 frequency to voltage. This converter produces a voltage, the magnitude of which varies synchronously with the frequency of the test signal, and the process of tuning the selective filter and measuring the harmonic coefficient is performed automatically.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782569847A SU670903A1 (en) | 1978-01-12 | 1978-01-12 | Arrangement for measuring coefficient of signal harmonics versus frequency responce characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782569847A SU670903A1 (en) | 1978-01-12 | 1978-01-12 | Arrangement for measuring coefficient of signal harmonics versus frequency responce characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU670903A1 true SU670903A1 (en) | 1979-06-30 |
Family
ID=20744577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782569847A SU670903A1 (en) | 1978-01-12 | 1978-01-12 | Arrangement for measuring coefficient of signal harmonics versus frequency responce characteristic |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU670903A1 (en) |
-
1978
- 1978-01-12 SU SU782569847A patent/SU670903A1/en active
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