[go: up one dir, main page]

SU84657A1 - Frequency measuring device - Google Patents

Frequency measuring device

Info

Publication number
SU84657A1
SU84657A1 SU352649A SU352649A SU84657A1 SU 84657 A1 SU84657 A1 SU 84657A1 SU 352649 A SU352649 A SU 352649A SU 352649 A SU352649 A SU 352649A SU 84657 A1 SU84657 A1 SU 84657A1
Authority
SU
USSR - Soviet Union
Prior art keywords
frequency
measuring device
frequency measuring
direct current
bridge
Prior art date
Application number
SU352649A
Other languages
Russian (ru)
Inventor
В.Е. Казанский
Original Assignee
В.Е. Казанский
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 В.Е. Казанский filed Critical В.Е. Казанский
Priority to SU352649A priority Critical patent/SU84657A1/en
Application granted granted Critical
Publication of SU84657A1 publication Critical patent/SU84657A1/en

Links

Landscapes

  • Measuring Magnetic Variables (AREA)

Description

В известных устройствах дл  измерени  и контрол  частоты в небольших пределах, основанных на использовании двух настроенных на определенные значени  измер емой частоты контуров, на которые одновременно падают колебани  измер емой частоты, отсчет измер емой величины производитс  путем сравнени  токов в диагонал х мостиков.In the known devices for measuring and controlling the frequency within small limits, based on the use of two circuits tuned to specific values of the measured frequency, to which the measured frequency oscillates simultaneously, the measured value is calculated by comparing the currents in the bridge diagonal.

Предлагаемое устройство позвол ет производить отсчет измер емой частоты непосредственно ио шкале прибора, дл  чего последний 1редлагаетс  включать на разность выпр мленных токов диагоналей мостиков .The proposed device makes it possible to read the measured frequency directly on the instrument scale, for which the latter should include the difference in straightened currents of the bridge diagonals.

На фиг. 1 изображена скелетна  блок-схема устройства; на фиг. 2 и 3 - графики зависимости выходных напр жений от частоты.FIG. 1 is a skeletal block diagram of the device; in fig. 2 and 3 are graphs of output voltages versus frequency.

Основными элементами устройства (фиг. 1)  вл ютс  два резонансных мости ка Ml и М2 и два выпр мител  В1 и 82.The main elements of the device (Fig. 1) are two resonant bridges Ml and M2 and two rectifiers B1 and 82.

Если частота должна контролироватьс  в пределах от /i до /2, то мостик Ml балансируетс  при частоте /ь а мостик А12 балансируетс  при частоте /2. Поэтому зависимости (/) и (/) изображаютс  дл  Ml - линией авс, а дл  мостика А42 - линией ABC (фиг. 2). Напр жение L/12 между выходными зажимами /-2, равное разности выпр мленных напр жений Ы и «2 обоих мостиков, изображаетс  линией ХОУ (фиг 2).If the frequency is to be controlled within the range of / i to / 2, then the bridge Ml is balanced at the frequency / b and the bridge A12 is balanced at the frequency / 2. Therefore, the dependences (/) and (/) are depicted for Ml as the ABC line, and for the A42 bridge, as the ABC line (Fig. 2). The voltage L / 12 between the output terminals / -2, equal to the difference of the rectified voltage S and 2 of both bridges, is represented by the HOA line (Fig. 2).

Действие устройства сводитс  к тому, что незначительные отклонени  частоты от заданного значени  преобразуютс  в значительные изменени  посто нного тока. При этом напр жение (или величина) посто нного тока на выходе устройства пропорционально отклонению частоты , а направление (пол рность) посто нного тока зависит от знака отклонени  частоты- При заданном (нормальном) значении частоты посто нный ток на выходе устройства равен нулю.The operation of the device is reduced to the fact that minor deviations of the frequency from the predetermined value are converted into significant changes in direct current. In this case, the voltage (or magnitude) of the direct current at the output of the device is proportional to the frequency deviation, and the direction (polarity) of the direct current depends on the sign of the frequency deviation. For a given (normal) frequency value, the direct current at the output of the device is zero.

Устройство может быть использовано как дл  измерени , так и дл  регулировани  частоты.The device can be used both for measuring and for frequency control.

В первом случае в качестве измерительного прибора может быть применен магнитоэлектрический гальванометр или логометр; во втором случае в качестве регул тора частоты может быть использован регул тор , реагирующий на величину и направление посто нного тока.In the first case, a magnetoelectric galvanometer or a logometer can be used as a measuring device; in the second case, a regulator that responds to the magnitude and direction of the direct current can be used as a frequency regulator.

SU352649A 1947-02-26 1947-02-26 Frequency measuring device SU84657A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU352649A SU84657A1 (en) 1947-02-26 1947-02-26 Frequency measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU352649A SU84657A1 (en) 1947-02-26 1947-02-26 Frequency measuring device

Publications (1)

Publication Number Publication Date
SU84657A1 true SU84657A1 (en) 1949-11-30

Family

ID=48257282

Family Applications (1)

Application Number Title Priority Date Filing Date
SU352649A SU84657A1 (en) 1947-02-26 1947-02-26 Frequency measuring device

Country Status (1)

Country Link
SU (1) SU84657A1 (en)

Similar Documents

Publication Publication Date Title
SU84657A1 (en) Frequency measuring device
GB668453A (en) Multi-channel telemetering device
SU112773A1 (en) A device for measuring the ratio of two electrically determined values
SU110367A2 (en) Power meter
SU123616A1 (en) Method for measuring electric power consumed by receiver
SU118548A1 (en) Device for measuring DC power consumption
SU104825A1 (en) Method for measuring small alternating currents and voltages compensation methods
SU121862A1 (en) Device for separate measurement of active and reactive components of complex resistances
SU692054A1 (en) Method and apparatus for controlling an-a-c voltage thyristor controller
SU107409A1 (en) Instrument for directly measuring AC current waveform ratio
SU147948A1 (en) Device for measuring small linear displacements
JPS6023993Y2 (en) Hall element residual voltage adjustment circuit
JPS55149028A (en) Load detector
SU830249A1 (en) Voltage fluctuation analyzer
SU96063A1 (en) Device for measuring welding time
SU100156A1 (en) Electrostatic power comparator
SU74847A1 (en) Device for determining the angle of shift between the emf of a synchronous machine and the voltage at its terminals
SU70235A1 (en) Device for measuring direct current
SU416638A1 (en)
SU119931A1 (en) Electronic diode voltmeter
SU83467A1 (en) Electrical measuring device
SU119614A1 (en) Voltage Measuring Device
SU90532A2 (en) Resonant frequency meter
SU110366A1 (en) Power meter
SU100485A1 (en) Electric recorder for recording small changes in mechanical parameters