[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

SU123618A2 - Probe graduation device - Google Patents

Probe graduation device

Info

Publication number
SU123618A2
SU123618A2 SU618641A SU618641A SU123618A2 SU 123618 A2 SU123618 A2 SU 123618A2 SU 618641 A SU618641 A SU 618641A SU 618641 A SU618641 A SU 618641A SU 123618 A2 SU123618 A2 SU 123618A2
Authority
SU
USSR - Soviet Union
Prior art keywords
phase
probe
voltage
voltages
product
Prior art date
Application number
SU618641A
Other languages
Russian (ru)
Inventor
В.Л. Власов
В.А. Потапов
Original Assignee
В.Л. Власов
В.А. Потапов
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.Л. Власов, В.А. Потапов filed Critical В.Л. Власов
Priority to SU618641A priority Critical patent/SU123618A2/en
Application granted granted Critical
Publication of SU123618A2 publication Critical patent/SU123618A2/en

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)

Description

В некоторых случа х дл  градуировки щупов оптическим методом необходимо измер ть произведение амплитуды напр жени , снимаемо.го со щупа, на синус и косинус его фазы. При этом дл  увеличени  точности и быстроты обработки результатов указанные измерени  необходимо производить одновременно. Этому требованию полностью отвечает предлагаемое устройство. В отличие от известных устройств дл  получени  произведени  амплитуд двух гармонических колебаний на косинус сдвига фаз между ними, основанных на двойном преобразовании частоты, в описываемом устройстве второе преобразование частоты производитс  по двум каналам с гетеродинными напр жени ми, сдвинутыми по фазе на 90°, а, с целью учета знака произведений в каждом канале, устройство выполнено с суммирующими элементами, которые складывают (или вычитают) напр жени  с опорным напр жением той же частоты от первого гетеродина.In some cases, for the calibration of probes by the optical method, it is necessary to measure the product of the amplitude of the voltage removed from the probe, by the sine and cosine of its phase. At the same time, in order to increase the accuracy and speed of processing the results, these measurements must be made simultaneously. This requirement is fully met the proposed device. In contrast to the known devices for producing the product of the amplitudes of two harmonic oscillations by the cosine of the phase shift between them, based on double frequency conversion, in the described device, the second frequency conversion is performed on two channels with heterodyne voltages that are out of phase by 90 °, in order to take into account the sign of works in each channel, the device is made with summing elements that add (or subtract) voltages with a reference voltage of the same frequency from the first local oscillator.

Блок-схема устройства, изображенна  на чертеже, содержит ультразвуковой щуп Щ, преобразователи частоты Пр, Пр2, Hpz, гетеродин Г, генератор высокой частоты ГВЧ, фазовращатели Ф:, Фа, Фз и Ф, усилители У и 2, суммирующие элементы С, €2, детекторы Mi, Д, самописцы Л и АЧ. Принцип работы схемы заключаетс  в следующем. Дл  получени  в одном канале напр жени , пропорционального произведению амплитуды напр жени , снимаемого со щупа, на косинус его фазы, а во втором - на синус его фазы, второе преобразование частоты ведетс  одновременно по двум каналам с гетеродинными напр жени ми от гетеродина Г, сдвинутыми по фазе на 90° фазовращател ми Ф1 и Ф2. Дл  учета знака произведений напр л ени  с каждого из двух каналов поступают на суммирующие элементы Ci и Cz, на которые одновременно пода№ 123618- 2 The block diagram of the device shown in the drawing contains an ultrasonic probe U, frequency converters Pr, Pr2, Hpz, local oscillator G, a high frequency generator of GHF, phase shifters Ф :, Фа, Фз and Ф, amplifiers У and 2, summing elements C, € 2, detectors Mi, D, recorders L and ACh. The principle of operation of the circuit is as follows. To obtain in one channel voltage, proportional to the product of the amplitude of the voltage removed from the probe on the cosine of its phase, and in the second to the sine of its phase, the second frequency conversion is carried out simultaneously through two channels with heterodyne voltages from the heterodyne, shifted out of phase by 90 ° with the F1 and F2 phase shifters. In order to take into account the sign of the works, for example, from each of the two channels, the summing elements Ci and Cz are fed, to which simultaneously the sub-no. 123618-2

ютс  опорные напр жени  той же частоты от гетеродина Г, причем их фазы перед началом измерени  устанавливаютс  фазовращател ми Фз и Ф4 так, чтобы они были равны фазам напр жений, снимаемых с усилителей У и У2. С выхода суммирующего элемента снимаетс  либо сумма, либо разность сигнала и опорного напр жени , в зависимости от величины фазы исследуемого сигнала, т. е. от знака, описанного выше произведени . После суммирующих схем напр жени  подаютс  на катодные повторители, детектируютс  детекторами Д: и Д ti поступают на самописцы AI и AZ, которые записывают произведени  с учетом знака.The reference voltages of the same frequency from the local oscillator G, and their phases before the start of measurement are set by the phase shifters Фз and Ф4 so that they are equal to the phases of the voltages removed from the amplifiers V and V2. From the output of the summing element, either the sum or the difference between the signal and the reference voltage is removed, depending on the magnitude of the phase of the signal being investigated, i.e., the sign of the product described above. After the summing voltage schemes are applied to the cathode repeaters, they are detected by the detectors D: and D ti are sent to the recorders AI and AZ, which record the products with the sign.

Предмет изобретени Subject invention

Устройство дл  градуировки щупов по авт. св. № 120350, отличающеес  тем, что, с целью одновременного измерени  произведений амплитуды напр жени  на синус и косинус его фазы с учетом знака, оно содержит два канала дл  второго преобразовани  частоты, в одном из которых применен фазовращатель, сдвигающий фазу напр жени  второго гетеродина на 90° относительно другого канала, и суммирующие элементы в обоих каналах дл  сложени  напр жений, пропорциональных соответственно произведению амплитуды сигнала на синус и косинус его фазы с опорным напр жением первого гетеродина.The device for the calibration of probes on the author. St. No. 120350, characterized in that, in order to simultaneously measure the product of the amplitude of voltage and sine and cosine of its phase, taking into account the sign, it contains two channels for a second frequency conversion, one of which uses a phase shifter that shifts the phase of the second local oscillator voltage by 90 ° relative to another channel, and summing elements in both channels to add voltages proportional to the product of the amplitude of the signal and the sine and cosine of its phase with the reference voltage of the first local oscillator, respectively.

SU618641A 1959-02-05 1959-02-05 Probe graduation device SU123618A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU618641A SU123618A2 (en) 1959-02-05 1959-02-05 Probe graduation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU618641A SU123618A2 (en) 1959-02-05 1959-02-05 Probe graduation device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU120350A Addition SU36515A1 (en) 1932-12-13 Lighting device for copiers

Related Child Applications (3)

Application Number Title Priority Date Filing Date
SU782605531A Addition SU726430A2 (en) 1978-04-17 1978-04-17 Apparatus for metering liquid and loose materials
SU802987348A Addition SU956995A2 (en) 1980-09-30 1980-09-30 Device for batching loose and liquid materials
SU864104945A Addition SU1362937A2 (en) 1986-05-27 1986-05-27 Device for metering liquid and loose materials

Publications (1)

Publication Number Publication Date
SU123618A2 true SU123618A2 (en) 1959-11-30

Family

ID=48406911

Family Applications (1)

Application Number Title Priority Date Filing Date
SU618641A SU123618A2 (en) 1959-02-05 1959-02-05 Probe graduation device

Country Status (1)

Country Link
SU (1) SU123618A2 (en)

Similar Documents

Publication Publication Date Title
SU123618A2 (en) Probe graduation device
GB1437119A (en) Device for measuring the phase shift of radiation
SU127710A1 (en) Dual-channel heterodyne phase meter
SU446035A1 (en) Device for measuring amplitude and phase frequency characteristics of elements and automatic control systems
SU551499A1 (en) Strain gauge device
SU135968A1 (en) Device for measuring the phase shift between two voltages
SU377699A1 (en) DEVICE FOR MEASURING SECONDARY PHASE
SU370546A1 (en) I ALL-UNION
SU464849A1 (en) Device for measuring phase-frequency characteristics
SU1283807A1 (en) Phase interpolator of two quadrature signals
SU650022A1 (en) Arrangement for measuring unstability
SU1226024A1 (en) Electromagnetic thickness gauge
SU1515118A1 (en) Electronic phase meter
SU983572A1 (en) Electric signal phase shift measuring method
SU124676A1 (en) A method for measuring the fractional part of the shift of two interference fringe systems in interferometers and a device for carrying out this method
SU461386A1 (en) Method for measuring small changes in phase shift
SU669871A1 (en) Device for measuring damping and phase shift of quadripole
SU752197A1 (en) Transformation coefficient meter
SU427226A1 (en) METHOD OF MEASUREMENT OF HARMONIC COMPONENTS OF KINEMATIC TRANSMISSION ERROR
SU584258A1 (en) Fast-response extremum detector for extremum digital ac bridge
SU1422165A1 (en) Apparatus for measuring the spread of variation of oscillation amplitude
SU137967A1 (en) AC voltage measuring device
SU1150575A1 (en) Device for measuring small dynamic phase changes
RU2039359C1 (en) Signal spectral analysis method
SU864181A1 (en) Electronic phase meter