SU107366A1 - Device for measuring the magnetic field strength - Google Patents

Device for measuring the magnetic field strength

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Publication number
SU107366A1
SU107366A1 SU559234A SU559234A SU107366A1 SU 107366 A1 SU107366 A1 SU 107366A1 SU 559234 A SU559234 A SU 559234A SU 559234 A SU559234 A SU 559234A SU 107366 A1 SU107366 A1 SU 107366A1
Authority
SU
USSR - Soviet Union
Prior art keywords
measuring
magnetic field
voltage
field strength
sensor
Prior art date
Application number
SU559234A
Other languages
Russian (ru)
Inventor
Д.Д. Воейков
Original Assignee
Д.Д. Воейков
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 Д.Д. Воейков filed Critical Д.Д. Воейков
Priority to SU559234A priority Critical patent/SU107366A1/en
Application granted granted Critical
Publication of SU107366A1 publication Critical patent/SU107366A1/en

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  • Measuring Magnetic Variables (AREA)

Description

Дл  измерени  напр женности магнитного пол  широко используютс  устройства, действие которых основано на использовании эффекта Холла.To measure the strength of the magnetic field, devices based on the use of the Hall effect are widely used.

Этот эффект заключаетс  в том ,что при пропускании электрического тока через проводник (датчик), помещенный в измер емое магнитное поле, в проводнике возникает поперечна  разность потенциалов, пропорциональна  напр женности пол .This effect is that when an electric current is passed through a conductor (sensor) placed in a measured magnetic field, a transverse potential difference arises in the conductor, which is proportional to the intensity of the field.

Известные устройства дл  измерени  напр женности магнитного пол  по методу Холла имеют малую чувствительность и сравиительно невысокую точность.The known devices for measuring the magnetic field strength according to the Hall method have low sensitivity and relatively low accuracy.

Предлагаемое устройство позвол ет существенно увеличить точность измерени  путем устранени  вли ни  нестабильности тока на результат измерений и повышени  точности отсчета напр жени  Холла.The proposed device can significantly increase the measurement accuracy by eliminating the influence of current instability on the measurement result and improving the accuracy of the reading of the Hall voltage.

Это достигаетс  благодар  включению четырехполюсника в цепь тока датчика и применению нулевого измерительного прибора , включенного на разность между напр жением Холла и выходным напр жением четырехполюсника , дл  измерени  напр жени  Холла по методу компенсации .This is achieved by incorporating a quadripole into the sensor circuit and using a zero meter connected to the difference between the Hall voltage and the output voltage of the quadrupole to measure the Hall voltage using the compensation method.

На чертеже изображена блоксхема предлагаемого устройства.The drawing shows the block diagram of the device.

Генератор тока, настроенный на частоту 1000 си, питает током 1| датчик Холла и четырехполюсник , выходное напр жение которого и, поэтому пропорционально току, протекающему через датчик . Напр жение U, подаетс  на делитель напр жени  и используетс  затем в качестве опорного напр жени  U-, , сравнительного с напр жением U, получаемым от датчика Холла. Разность напр жений и и и:, иосле усилени  подаетс  на индикатор баланса с целью измерени  напр жени  U по компенсационному методу.Current generator tuned to 1000 si frequency is powered by current 1 | a Hall sensor and a quadrupole, the output voltage of which and, therefore, is proportional to the current flowing through the sensor. The voltage U, is applied to the voltage divider and is then used as a reference voltage U-, comparative with the voltage U received from the Hall sensor. The difference in voltages and and and:, and after amplification, is fed to the balance indicator to measure the voltage U by the compensation method.

Делитель напр жени , от которого получают опорное напр жение L,, может быть отградуиро ван непосредственно в эрстедах.The voltage divider from which the reference voltage L is obtained can be directly calibrated in Oersteds.

Предмет изобретени Subject invention

Устройство дл  измерени  напр женности магнитного пол  по методу Холла, т. е. путем измерени  поперечной разности потенциалов на поверхности датчика, помещенного в контролируемоеA device for measuring the magnetic field intensity by the Hall method, i.e., by measuring the transverse potential difference on the surface of a sensor placed in a controlled

поле, через которое пропускаетс  электрический ток, отличающее с   тем, что, с целью повышени  точности измерений, в цепь тока датчика включен четырехполюсник , выходное напр жениеa field through which an electric current is passed, characterized in that, in order to increase the measurement accuracy, a quadrupole is connected to the sensor current circuit, the output voltage

которого, пропорциональное току , протекающему через датчик, используетс  в качестве опорного напр жени  при измерении указанной разности потенциалов по методу компенсации.which is proportional to the current flowing through the sensor, is used as a reference voltage when measuring the indicated potential difference by the compensation method.

SU559234A 1956-10-17 1956-10-17 Device for measuring the magnetic field strength SU107366A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU559234A SU107366A1 (en) 1956-10-17 1956-10-17 Device for measuring the magnetic field strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU559234A SU107366A1 (en) 1956-10-17 1956-10-17 Device for measuring the magnetic field strength

Publications (1)

Publication Number Publication Date
SU107366A1 true SU107366A1 (en) 1956-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU559234A SU107366A1 (en) 1956-10-17 1956-10-17 Device for measuring the magnetic field strength

Country Status (1)

Country Link
SU (1) SU107366A1 (en)

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