SU104825A1 - Method for measuring small alternating currents and voltages compensation methods - Google Patents

Method for measuring small alternating currents and voltages compensation methods

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Publication number
SU104825A1
SU104825A1 SU453788A SU453788A SU104825A1 SU 104825 A1 SU104825 A1 SU 104825A1 SU 453788 A SU453788 A SU 453788A SU 453788 A SU453788 A SU 453788A SU 104825 A1 SU104825 A1 SU 104825A1
Authority
SU
USSR - Soviet Union
Prior art keywords
alternating currents
measuring small
compensation methods
small alternating
voltages
Prior art date
Application number
SU453788A
Other languages
Russian (ru)
Inventor
Ю.А. Кормильцев
В.С. Лернер
Original Assignee
Ю.А. Кормильцев
В.С. Лернер
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 Ю.А. Кормильцев, В.С. Лернер filed Critical Ю.А. Кормильцев
Priority to SU453788A priority Critical patent/SU104825A1/en
Application granted granted Critical
Publication of SU104825A1 publication Critical patent/SU104825A1/en

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  • Measurement Of Current Or Voltage (AREA)

Description

Изобретение относитс  к способам измерени  малых переменных токов н напр жеинй компенсационным методом прн помощи лчектроппого 1 отенцнометра.The invention relates to methods for measuring small alternating currents and a direct compensation method using the detector 1 meter.

Известные способы не обеспечивают ВЫСОКО точности лодобных измерений, ввиду отсутстви  стабильных i:cT04HHKOB переменного тока , аналогичных по своп.м свойствам нормальному ra.ii3BaHn4ecKONry элементу.The known methods do not provide a HIGH accuracy of water measurements, due to the absence of stable i: cT04HHKOB ac currents similar in their swap properties to the normal ra.ii3BaHn4ecKONry element.

Описываемое изобретение повыHjaeT точность компенсационной схемы измерени  на переменном токе . Дл  этого установленный по нормальному гальваническому элементу посто нный рабочий ток схемы преобразуют в переменный с помощью вибропреобразовател  и сравнивают с нзмер емым переменным током.The described invention improves the accuracy of an alternating current measurement compensation circuit. For this, the constant operating current established by the normal galvanic cell is converted into alternating current by means of a vibrator and compared with the measured alternating current.

На чертеже показана электрическа  схема устройства дл  измерений предложенным способом.The drawing shows the electrical circuit of the measurement device of the proposed method.

Перед измерением вход переменного тока с помоодью переключател  /7 закорачиваетс  и производитс  подгорп а )1сточиика посто нного тока по нормальному элементу Н, Э. При переюгючении на измерениеBefore the measurement, the input of the alternating current with the help of the switch / 7 is short-circuited and the substandon is produced: a) 1 DC link for the normal element H, E. When reflowing to measure

разность между измер емым пере .меиным и посто нным током, преобразованным вибропреобразователем Вп Б переменный, подаетс  на вход электронного усилител  ЭУ и далее к двигателю Д, перемещающему реохорд потенциометра А / в цепи посто нного тока. В результате мен етс  напр жение в цепи, чем и достигаетс  компенсаци  переменного тока.the difference between the measured alternating current and the direct current converted by the V B variable transducer is applied to the input of the EI electronic amplifier and then to the motor D, which moves the reichord of the potentiometer A / in the direct current circuit. As a result, the voltage in the circuit varies, which is how the AC current is compensated.

В положении равновеси  сигнал, подаваемый на вход электронного усилител , равен .In the equilibrium position, the signal applied to the input of the electronic amplifier is.

Описанный способ можно использовать дл  записи или д.ч  perjuiiiро-вани  перемеиного тока и напр жени  (например, при электронагреве в печах сопротивлени , рудотермических печах и т. п.).The described method can be used for recording or dh perjuiiiro-van of alternating current and voltage (for example, with electrical heating in resistance furnaces, ore-thermal furnaces, etc.).

Пред м е т н з о б р е т е н и  PREPARATION METHOD

1. Способ измерени  малых переменных токов и напр жений компепсационны .м методом прн помощи электронного потенциометра, отл ичающийс  тем, что, с целью повышени  точности компенсационной схемы на переменном токе, посто нный рабочий ток схемы, установленный по нормальном} гальваМ 0 1825- 2-/ : 1. A method for measuring small alternating currents and voltages is selected by the electronic potentiometer method, which differs from the fact that, in order to improve the accuracy of an alternating current compensation circuit, the constant operating current of the circuit is set according to the normal} galvanic - /:

ническому элементу, преобразуют 2. Применение епособа по п. 1 дл element, convert 2. The use of the method according to claim. 1 for

И nepcMciiiibiii с иомощыо внбропре-целей зауиси ил регулировани  пеобразовател  и сракит ют с изме-ре,енных токов и наир жений. р емым иеремениым током.And nepcMciiiibiii, with the help of one of the various types of control of the transformer, and destroy it with measuring currents and influences. alternate current.

;|.; |.

SU453788A 1956-01-28 1956-01-28 Method for measuring small alternating currents and voltages compensation methods SU104825A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU453788A SU104825A1 (en) 1956-01-28 1956-01-28 Method for measuring small alternating currents and voltages compensation methods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU453788A SU104825A1 (en) 1956-01-28 1956-01-28 Method for measuring small alternating currents and voltages compensation methods

Publications (1)

Publication Number Publication Date
SU104825A1 true SU104825A1 (en) 1956-11-30

Family

ID=48378296

Family Applications (1)

Application Number Title Priority Date Filing Date
SU453788A SU104825A1 (en) 1956-01-28 1956-01-28 Method for measuring small alternating currents and voltages compensation methods

Country Status (1)

Country Link
SU (1) SU104825A1 (en)

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