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 frequencies

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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
Application number
SU2094420A
Other languages
Russian (ru)
Inventor
Андрей Антонович Кетов
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 filed Critical
Priority to SU2094420A priority Critical patent/SU521527A1/en
Application granted granted Critical
Publication of SU521527A1 publication Critical patent/SU521527A1/en

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  • 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)

1. Справочник по радиоэлектронике под ред. Куликовского, том 2, 1968 г., изд-во Энерги , М, стр. 438, рис. 18-51 .1. Handbook of electronics, ed. Kulikovskogo, volume 2, 1968, publishing house Energie, M, p. 438, fig. 18-51. 2.Авт. св. СССР № 262168 кл, Н ОЗ К 5/2О, 1968 г.2. Avt. St. USSR № 262168 cells, N OZ K 5 / 2O, 1968 3.Цифровые частотомеры, Ермолаев, Энерги , Л, 1973 г., стр. 8, рис. 1-3 (прототип),3. Digital frequency meters, Ermolaev, Energie, L, 1973, p. 8, fig. 1-3 (prototype) «"
SU2094420A 1975-01-08 1975-01-08 Device for determining the magnitude and sign of the difference between two frequencies SU521527A1 (en)

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

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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)

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