SU143471A1 - The method of phase meter calibration in a number of discrete points - Google Patents

The method of phase meter calibration in a number of discrete points

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Publication number
SU143471A1
SU143471A1 SU690171A SU690171A SU143471A1 SU 143471 A1 SU143471 A1 SU 143471A1 SU 690171 A SU690171 A SU 690171A SU 690171 A SU690171 A SU 690171A SU 143471 A1 SU143471 A1 SU 143471A1
Authority
SU
USSR - Soviet Union
Prior art keywords
discrete points
phase meter
meter calibration
phase
selective
Prior art date
Application number
SU690171A
Other languages
Russian (ru)
Inventor
Н.И. Гольдберг
Original Assignee
Н.И. Гольдберг
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 Н.И. Гольдберг filed Critical Н.И. Гольдберг
Priority to SU690171A priority Critical patent/SU143471A1/en
Application granted granted Critical
Publication of SU143471A1 publication Critical patent/SU143471A1/en

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  • Measuring Phase Differences (AREA)

Description

Известны способы градуировки фазоизмерителей, в которых напр жени  с выхода градуируемого и вспомогательного измерителе умножаютс  ио частоте, а дл  определени  дискретных точек с кратными сдвигами фаз используетс  осциллографический индикатор. В подобных способах используют селективные умножители частоты, вследствие чего диапазон частот, иа которых Б031можна градуировка, ограничен.There are known methods for calibrating phase-measuring devices in which the voltages from the output of a calibrated and auxiliary meter are multiplied at frequency, and an oscillographic indicator is used to determine discrete points with multiple phase shifts. In such methods, selective frequency multipliers are used, as a result of which the frequency range, which B031 can be calibrated, is limited.

Описываемый способ отличаетс  от известных тем, что умножение частоты производ т неселективными нелинейными элементами (например , ограничигел ми). Дл  выделени  нужных гармоник и индикации их фазовых соотношений исиользуют селективный перестран1пе,ый силитель. На вход усилител  подают сумму умноженных по частоте напр жений с выходов градуируемого и вспомогательного фазоизмерителей . Наличие общего дл  обоих каналов селективного усилител  и индикаци  фазовых соотношений ио минимуму напр жени  на его выходе позвол ет расширить диаиазон частот, на которых возможна градуировка.The described method differs from the known ones in that frequency multiplication is performed by non-selective non-linear elements (e.g., bounded). To highlight the desired harmonics and indicate their phase relationships, a selective repetitive silica gel is used. The input of the amplifier serves the sum of the voltages multiplied in frequency from the outputs of the calibrated and auxiliary phase-measuring devices. The presence of a selective amplifier common to both channels and the indication of phase relations and the minimum voltage at its output allows us to expand the range of frequencies at which graduation is possible.

Скелетна  схема измерений по описываемому способу приведена на чертеже.Skeletal measurement scheme for the described method is shown in the drawing.

Напр жение с частотой f, на которой осуществл ют градуировку, подают от генератора 1 на градуируемый ирибор 2 и вспомогательиый плавный фазоврашатель 3. Фазоврашатель 3 служит дл  получеии  начального сдвига фаз между напр жени ми частоты /, соответствующего нулю шкалы градуируемого прибора. Градуируемый прибор 2 и вспомогательный фазовращатель 5 соединены с неселективнымц нелинейными элементами 4 5. На выходе неселективных элементов, например ограничителей, возникает спектр с частотами /, 2/, 3/, . . .  /. Нри этом напр жени  на выходе элемента 4 сдвинуты по фазе относительно напр жений на выходе элемента 5 на углы ф, 2ф, Зф ,. .Пф. Затем полученные напр жени  суммируютс  в сумматоре 6, выход котоVoltage with frequency f, at which the calibration is performed, is supplied from generator 1 to calibrated instrument 2 and auxiliary smooth phase changer 3. Phaser 3 serves to obtain an initial phase shift between the voltage voltages f corresponding to the zero scale of the calibrated instrument. Graduated device 2 and auxiliary phase shifter 5 are connected to non-selective nonlinear elements 4 5. A spectrum with frequencies /, 2 /, 3 /, appears at the output of non-selective elements, for example, limiters. . . /. In this case, the voltage at the output of the element 4 is phase shifted relative to the voltage at the output of the element 5 by the angles φ, 2f, 3f,. .Pf. The resulting voltages are then summed in adder 6, the output of which is

SU690171A 1960-12-20 1960-12-20 The method of phase meter calibration in a number of discrete points SU143471A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU690171A SU143471A1 (en) 1960-12-20 1960-12-20 The method of phase meter calibration in a number of discrete points

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU690171A SU143471A1 (en) 1960-12-20 1960-12-20 The method of phase meter calibration in a number of discrete points

Publications (1)

Publication Number Publication Date
SU143471A1 true SU143471A1 (en) 1961-11-30

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SU690171A SU143471A1 (en) 1960-12-20 1960-12-20 The method of phase meter calibration in a number of discrete points

Country Status (1)

Country Link
SU (1) SU143471A1 (en)

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