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SU563649A1 - Device for controlling resistor resistance deviation from determined - Google Patents

Device for controlling resistor resistance deviation from determined

Info

Publication number
SU563649A1
SU563649A1 SU7502195434A SU2195434A SU563649A1 SU 563649 A1 SU563649 A1 SU 563649A1 SU 7502195434 A SU7502195434 A SU 7502195434A SU 2195434 A SU2195434 A SU 2195434A SU 563649 A1 SU563649 A1 SU 563649A1
Authority
SU
USSR - Soviet Union
Prior art keywords
determined
resistor resistance
resistance deviation
transformer
controlling resistor
Prior art date
Application number
SU7502195434A
Other languages
Russian (ru)
Inventor
Гарольд Петрович Редекоп
Михаил Григорьевич Безгодов
Original Assignee
Предприятие П/Я Г-4498
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 Предприятие П/Я Г-4498 filed Critical Предприятие П/Я Г-4498
Priority to SU7502195434A priority Critical patent/SU563649A1/en
Application granted granted Critical
Publication of SU563649A1 publication Critical patent/SU563649A1/en

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  • Measurement Of Resistance Or Impedance (AREA)

Description

1one

Изобретение относитс  к контрольно-измерительной технике и может использоватьс  дл  контрол  активных сопротивлений бытовых электронагревательных приборов.The invention relates to instrumentation technology and can be used to control the resistances of household electrical heaters.

Известно устройство дл  измерени  импедансов , состо щее из двух трансформаторов, вторичные обмотки которых включены встречно через нулевой индикатор, а первичные обмотки включены последовательно в цепь питающего генератора, причем последовательно одной из них включено комплексное сопротивление и обе ветви шунтированы активными сопротивлени ми 1.A device for measuring impedances consisting of two transformers, the secondary windings of which are connected opposite through the zero indicator, and the primary windings are connected in series to the supply generator circuit, one of them in series with the impedance and both branches shunted by active resistance 1.

Известно также устройство, состо щее из питающего трансформатора с трем  вторичными обмотками, причем перва  вторична  обмотка включена через образцовый резистор на часть первичной обмотки измерительного трансформатора, втора  - через измер емый резистор на другую часть тото же измерительного трансформатора, который суммирует оба сигнала, треть  вторична  обмотка подключена через дифференциальный усилитель к измер емому резистору 2.It is also known a device consisting of a supply transformer with three secondary windings, the first secondary winding being connected through an exemplary resistor to a part of the primary winding of a measuring transformer, the second through a measurable resistor to another part of the same measuring transformer that summarizes both signals, a third secondary The winding is connected via a differential amplifier to the resistor 2 being measured.

На входе усилител  по вл етс  сигнал, равный разности между напр жением на измер емом резисторе и напр жением, которое должно к нему подводитьс . На выходе дифференциального усилител  по вл етс  корректирующее напр жение, которое с помощьюA signal appears at the input of the amplifier, equal to the difference between the voltage across the measuring resistor and the voltage that must be applied to it. A correction voltage appears at the output of the differential amplifier, which by means of

трансформатора вводитс  в цепь измер емого резистора и компенсирует ощибку измерени . Известные устройства  вл ютс  универсальными и nosTOjMy отличаютс  слол ностьюA transformer is inserted into the measuring resistor circuit and compensates for the measurement error. The known devices are universal and nosTOJMy are distinguished by their sloping

и недостаточной надежностью дл  массового испытани  бытовых электронагревательных приборов, где требуетс  лишь допусковой контроль сопротивлени .and insufficient reliability for mass testing of household electric heaters, where only tolerance control of resistance is required.

Цель изобретени  - упрощение устройстваThe purpose of the invention is to simplify the device.

и повышение его надежности.and increase its reliability.

Это достигаетс  тем, что в предлагаемом устройстве дл  контрол  отклоненнй сопротивлений резисторов от заданных зон допуска концы вторичных обмоток питающего трансформатора св заны с одним из выводов образцового резистора, другой вывод которого через первичную обмотку измерительного трансформатора соединен с началом первой вторичной обмотки питающего трансформатора , а через измер емое сопротивление - с началом второй вторичной обмотки указанного трансформатора.This is achieved by the fact that in the proposed device for monitoring the deviated resistances of resistors from predetermined tolerance zones, the ends of the secondary windings of the supply transformer are connected to one of the terminals of the reference resistor, the other output of which is connected to the beginning of the first secondary winding of the supply transformer, and through The measured resistance is from the beginning of the second secondary winding of the specified transformer.

На чертеже представлена электрическа  схема предлагаемого устройства.The drawing shows the electrical circuit of the proposed device.

Устройство содержит питающий трансформатор 1 с первой вторичной обмоткой 2, второй вторичной обмоткой 3, испытываемый резистор 4, измерительный трансформатор 5 с нервичной обмоткой 6 и вторичной обмоткойThe device contains a power transformer 1 with the first secondary winding 2, the second secondary winding 3, the test resistor 4, the measuring transformer 5 with the nervous winding 6 and the secondary winding

7, образцовый резистор 8, усилитель (реле)7, exemplary resistor 8, amplifier (relay)

SU7502195434A 1975-12-03 1975-12-03 Device for controlling resistor resistance deviation from determined SU563649A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU7502195434A SU563649A1 (en) 1975-12-03 1975-12-03 Device for controlling resistor resistance deviation from determined

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7502195434A SU563649A1 (en) 1975-12-03 1975-12-03 Device for controlling resistor resistance deviation from determined

Publications (1)

Publication Number Publication Date
SU563649A1 true SU563649A1 (en) 1977-06-30

Family

ID=20639212

Family Applications (1)

Application Number Title Priority Date Filing Date
SU7502195434A SU563649A1 (en) 1975-12-03 1975-12-03 Device for controlling resistor resistance deviation from determined

Country Status (1)

Country Link
SU (1) SU563649A1 (en)

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