SU521527A1 - Device for determining the magnitude and sign of the difference between two frequencies - Google Patents
Device for determining the magnitude and sign of the difference between two frequenciesInfo
- Publication number
- SU521527A1 SU521527A1 SU2094420A SU2094420A SU521527A1 SU 521527 A1 SU521527 A1 SU 521527A1 SU 2094420 A SU2094420 A SU 2094420A SU 2094420 A SU2094420 A SU 2094420A SU 521527 A1 SU521527 A1 SU 521527A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- difference
- sign
- frequencies
- magnitude
- determining
- Prior art date
Links
Landscapes
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ ВЕЛИЧИНЫ И ЗНАКА РАЗНОСТИ ДВУХ ЧАСТОТ(54) DEVICE TO DETERMINE THE VALUE AND DIFFERENCE SIGN OF TWO FREQUENCIES
Оно содержит генератор 1 опорной частоты , триггеры 2 и 3, формирователь 4 икптульсов, фильтр 5 нижнк . частот, фазовый детектор 6, индикаторы 7 и 8.It contains the generator 1 reference frequency, triggers 2 and 3, the driver 4 ICT pulses, filter 5 bottom. frequency, phase detector 6, indicators 7 and 8.
Устройство работает следующим образом .The device works as follows.
Сигналы сравниваемых частот поступают на триггеры 2 и 3, коммутируемьлэ генератором 1 опорной частоты. На выходах триггеров 2, 3 образуютс пакеты импульсов сравниваемых частот Т. Эти импульсы поочередно запускают формирователь 4 импульсов.The signals of the compared frequencies arrive at the triggers 2 and 3, commutated by the generator 1 of the reference frequency. At the outputs of the flip-flops 2, 3, packets of pulses of the compared frequencies T are formed. These pulses alternately start the shaper of 4 pulses.
Формирователь 4 вырабатывает импульсы посто нной длительности, но с чередующимис частэтами повторени FI и Fg , Поскольку длительность импульсов остаетс во всех случа х иосто кной., а частота повторени мен етс с частотой генератора 1 опорной частоты, посто нна составл юща ,, пропорциональна частоте ( j, F. X от периода к периоду с}п налов генератора 1 также измен етс . Сигналы с выхода формировател 4 подаютс на фильтр 5, который выдел ет посто нную составл ющую, промодулированную частотой генератора 1, Амплитуда выдел емых фильтром 5 сигналов пропорциональна разности двух частот FI Гг. фаза соответствует знаку этой разности. Знак разности определ етс фазовым детектором 6, на входы которого подаютс сигналы с выхода фильтра 5 и. генератора 1.. Величина разности и ее знак регистрируютс индикаторами 7 и 8 (измерительными приборами например вольтметрами).The former 4 generates pulses of a constant duration, but with alternating repetition parts FI and Fg. Since the pulse duration remains constant in all cases, and the repetition frequency varies with the frequency of the reference frequency generator 1, the constant component is proportional to the frequency ( j, F. X from the period to the period c} of the pals of the generator 1 is also changed. Signals from the output of the shaper 4 are fed to a filter 5 which extracts a constant component modulated by the frequency of the generator 1, the amplitude selected by the filter 5 The signal is proportional to the difference between the two frequencies FI Gg. The phase corresponds to the sign of this difference. The sign of the difference is determined by the phase detector 6, the inputs of which are fed from the output of filter 5 and the generator 1 .. The magnitude of the difference and its sign are recorded by indicators 7 and 8 (measuring instruments for example, voltmeters).
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2094420A SU521527A1 (en) | 1975-01-08 | 1975-01-08 | Device for determining the magnitude and sign of the difference between two frequencies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2094420A SU521527A1 (en) | 1975-01-08 | 1975-01-08 | Device for determining the magnitude and sign of the difference between two frequencies |
Publications (1)
Publication Number | Publication Date |
---|---|
SU521527A1 true SU521527A1 (en) | 1976-07-15 |
Family
ID=20606782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2094420A SU521527A1 (en) | 1975-01-08 | 1975-01-08 | Device for determining the magnitude and sign of the difference between two frequencies |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU521527A1 (en) |
-
1975
- 1975-01-08 SU SU2094420A patent/SU521527A1/en active
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