SU113316A1 - Apparatus for temperature compensation of sensors based on the use of the Hall effect in devices for measuring magnetic fields - Google Patents

Apparatus for temperature compensation of sensors based on the use of the Hall effect in devices for measuring magnetic fields

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Publication number
SU113316A1
SU113316A1 SU573441A SU573441A SU113316A1 SU 113316 A1 SU113316 A1 SU 113316A1 SU 573441 A SU573441 A SU 573441A SU 573441 A SU573441 A SU 573441A SU 113316 A1 SU113316 A1 SU 113316A1
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SU
USSR - Soviet Union
Prior art keywords
devices
magnetic fields
hall effect
temperature compensation
sensors based
Prior art date
Application number
SU573441A
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 SU573441A priority Critical patent/SU113316A1/en
Application granted granted Critical
Publication of SU113316A1 publication Critical patent/SU113316A1/en

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  • Measuring Magnetic Variables (AREA)

Description

За последнее врем  в практике лабораторных и технических измерений широкое распространение получили магнитометры, основанные на использовании эффекта Холла.Recently, magnetometers based on the use of the Hall effect have become widespread in the practice of laboratory and technical measurements.

Однако эти приборы не обеспечивают высокую точность измерений, вследствие температурной нестабильности датчиков Холла.However, these devices do not provide high measurement accuracy due to the temperature instability of the Hall sensors.

Дл  температурной компенсации указанных датчиков примен ют термосопротивлени  (например, типа «термисторов), которые включают по схеме моста последовательно в цепь питани  датчикаПредлагаемое устройство отличаетс  от известных устройств тем, что в нем применена раздельна  компенсаци  температурного разбаланса датчика и температурной нестабильности константь Холла. Это достигаетс  тем, что усиленное напр л ение разбаланса моста из термосопротивлений подаетс  навстречу напр жению датчика Холла и одновременно на вход делител  напр жени , включенного в цепь питани  датчика. Введение такой компенсации повышает точность измереиий магнитных полей.Thermal resistances (e.g., thermistors of the type) are included for temperature compensation of the sensors indicated. They are connected in series to the sensor power supply circuit. This is achieved by increasing the unbalance voltage of the bridge from the thermal resistances to the voltage of the Hall sensor and at the same time to the input of the voltage divider connected to the power supply circuit of the sensor. The introduction of such compensation improves the accuracy of measurements of magnetic fields.

На чертеже изображена схема предлагаемого устройства.The drawing shows a diagram of the proposed device.

Устройство состоит из термочувствительного моста / и двухкаскадного лампового усилител . В одно из плеч моста 1 включено термосопротнвление 2 (например, термистор), которое расположено вместе с датчиком Холла 3 в зонде магнитометра.The device consists of a heat-sensitive bridge / and a two-stage tube amplifier. One of the arms of bridge 1 includes a thermoprotection 2 (for example, a thermistor), which is located together with the Hall sensor 3 in the probe of the magnetometer.

Мост балансируетс  при заводской регулировке сопротивлением 4. Возникающее при изменении температуры окружающего воздуха напр жение разбаланса моста усиливаетс  ламной 5 и через сопротивлеиие 6 и 7 подаетс  на катод лампы 8 каскада сравнени - Выбор знака этого напр жени  осуществл етс  при заводской регулировке схемы путем перемены местами сеточного и катодного концов лампы 5. Изменение веThe bridge is balanced at the factory adjustment by resistance 4. The voltage of the bridge unbalance that occurs when the ambient temperature changes is amplified by the lamp 5 and through resistance 6 and 7 is applied to the cathode of the comparison lamp 8 of the cascade. and the cathode ends of the lamp 5. The change of ve

SU573441A 1957-05-18 1957-05-18 Apparatus for temperature compensation of sensors based on the use of the Hall effect in devices for measuring magnetic fields SU113316A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU573441A SU113316A1 (en) 1957-05-18 1957-05-18 Apparatus for temperature compensation of sensors based on the use of the Hall effect in devices for measuring magnetic fields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU573441A SU113316A1 (en) 1957-05-18 1957-05-18 Apparatus for temperature compensation of sensors based on the use of the Hall effect in devices for measuring magnetic fields

Publications (1)

Publication Number Publication Date
SU113316A1 true SU113316A1 (en) 1957-11-30

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Application Number Title Priority Date Filing Date
SU573441A SU113316A1 (en) 1957-05-18 1957-05-18 Apparatus for temperature compensation of sensors based on the use of the Hall effect in devices for measuring magnetic fields

Country Status (1)

Country Link
SU (1) SU113316A1 (en)

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