SU579589A1 - Capacitance or inductance small increments to-voltage transducer - Google Patents
Capacitance or inductance small increments to-voltage transducerInfo
- Publication number
- SU579589A1 SU579589A1 SU7602328832A SU2328832A SU579589A1 SU 579589 A1 SU579589 A1 SU 579589A1 SU 7602328832 A SU7602328832 A SU 7602328832A SU 2328832 A SU2328832 A SU 2328832A SU 579589 A1 SU579589 A1 SU 579589A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- output
- input
- frequency
- mixer
- generator
- Prior art date
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
1one
Изобретение относитс к измерительно тг}п:ике; а именно - к частотным преобразовател м емкости или индуктивности . Оно может быть использовано дл лабораторных измерений емkocTeft или индуктивностей путем сравнени их с эталонными образцами.The invention relates to measuring n} n: ike; namely, to frequency converters of capacitance or inductance. It can be used for laboratory measurements of capacitance or inductances by comparing them with reference samples.
Однако, с наибольшей эффективностью да1-1ной устройство может быть использозачо д.п производственных измерений переп-:.-.цов различных неэлектрических величин с помощью емкостных или индуктивных датчиков, например, П}-Я контрол толщины покрытий или степени пропитки различных основ, измеренич степени выт жки проката, дефектоскопических измерений и т.п.However, with the highest efficiency, a device can be used for the production measurements of trans: - .- of various non-electrical quantities using capacitive or inductive sensors, for example, P – I to control coating thickness or the degree of impregnation of various bases, to measure degree of drawing, flaw detection, etc.
Иззестнс преоорззозателн малых приращений емкости или индуктивности в напр )г:.:;:ие, состо щее из двух емкостных ипи индуктивных .датчиков, включенных в колебательные контуры измерительныхLC -генераторов, устройств дл фор(.ировани разностной частоты, частотных детекторов и индикаторов l.Due to small increments of capacitance or inductance in the example) g:.:;: S, consisting of two capacitive types of inductive sensors included in the oscillatory circuits of the measuring LC generators, devices for the form (differential frequency, frequency detectors and indicators l .
Устройства такого рода успешно примен ютс , когда величина измер емого приращени v,-ymecTBeHHo превышает диапазон изменений собственных величин сравниваег-кх элементов. ОднакоDevices of this kind are successfully used when the magnitude of the measured increment v, -ymecTBeHHo exceeds the range of changes in the eigenvalues of the compared-x elements. but
в случа х, ncrc-f -енных выше г диапазон изменений собственных величин сравниваемых элементов, как правило, на несколько пор дков превЕлшает измер емое пркраи;е ие. В таких услови х Kso6xop.r-i;.iUe чувствительность и точность измерений не могут быть обеспечены вследствие нелинейности и нестабильности элементов преобразовател , в основном измерительного генератора и частотного детектора.in the cases ncrc-f -enuated above r, the range of changes in the eigenvalues of the compared elements, as a rule, exceeds the measurable right by several orders; e. Under such conditions, Kso6xop.r-i; .iUe sensitivity and measurement accuracy cannot be ensured due to nonlinearity and instability of the elements of the converter, mainly the measuring oscillator and the frequency detector.
Наиболее близок к предлагаемому преобразовате;1Ь, содержащий автогенератор , ключ, поочередно подключающий к генератору контролируемую и эталонную индуктивности, дополнительный ключ, частотный детектор, избирательный усилитель, фазочувствительны выпр митель, реверсивный двигатель, тахогенератор и круговой фазовращатель 2 .Closest to the proposed converter; 1b, containing an auto-oscillator, a switch that alternately connects a controlled and reference inductance to the generator, an additional key, a frequency detector, a selective amplifier, a phase-sensitive rectifier, a reversing motor, a tachogenerator and a circular phase shifter 2.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7602328832A SU579589A1 (en) | 1976-03-01 | 1976-03-01 | Capacitance or inductance small increments to-voltage transducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7602328832A SU579589A1 (en) | 1976-03-01 | 1976-03-01 | Capacitance or inductance small increments to-voltage transducer |
Publications (1)
Publication Number | Publication Date |
---|---|
SU579589A1 true SU579589A1 (en) | 1977-11-05 |
Family
ID=20650363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7602328832A SU579589A1 (en) | 1976-03-01 | 1976-03-01 | Capacitance or inductance small increments to-voltage transducer |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU579589A1 (en) |
-
1976
- 1976-03-01 SU SU7602328832A patent/SU579589A1/en active
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