SU81934A1 - Device for measuring magnetic fields - Google Patents

Device for measuring magnetic fields

Info

Publication number
SU81934A1
SU81934A1 SU377320A SU377320A SU81934A1 SU 81934 A1 SU81934 A1 SU 81934A1 SU 377320 A SU377320 A SU 377320A SU 377320 A SU377320 A SU 377320A SU 81934 A1 SU81934 A1 SU 81934A1
Authority
SU
USSR - Soviet Union
Prior art keywords
magnetic
magnetic fields
measuring magnetic
measuring
bridge
Prior art date
Application number
SU377320A
Other languages
Russian (ru)
Inventor
О.Е. Гольдин
Original Assignee
О.Е. Гольдин
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 О.Е. Гольдин filed Critical О.Е. Гольдин
Priority to SU377320A priority Critical patent/SU81934A1/en
Application granted granted Critical
Publication of SU81934A1 publication Critical patent/SU81934A1/en

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  • Measuring Magnetic Variables (AREA)

Description

Известные приборы дл  обнаружени  и измерени  малых магнитных тюлей построены на принципе и менени  магнитной проницаемости ферромагнитного сплава под вли нием внешнего магнитного пол , причем измерение производитс  учетом разности напр жений в электрическом мостике, одним из плеч которого  вл етс  дроссель с сердечником из материала, мен ющего магнитную проницаемость в присутствии магнитного пол .The known devices for detecting and measuring small magnetic tulles are based on the principle and variation of the magnetic permeability of a ferromagnetic alloy under the influence of an external magnetic field. magnetic permeability in the presence of a magnetic field.

Чувствительность этих схем невелика и они требуют применени  особых сплавов усилителей.The sensitivity of these circuits is small and they require the use of special alloys of amplifiers.

Предлагаемый прибор дл  измерени  слабых внешних магнитных полей также представл ет собой магнитно-мостиковое устройство с двум  непересекающимис  диаголал ми, одна из которых располагаетс  вне его плоскости. Это дает возможность увеличить чувствительность прибора и уменьшить его размеры.The proposed device for measuring weak external magnetic fields is also a magnetic bridging device with two non-intersecting diagrams, one of which is located outside of its plane. This makes it possible to increase the sensitivity of the device and reduce its size.

Конструкци  предлагаемого устройства схематически изображена па чертеже в двух проекци х.The design of the proposed device is schematically depicted pa drawing in two projections.

Сердечник мостика вырезаетс  из листа ферромагнитного сплава большой магнитной проницаемости. Катушки а и б -питаютс  переменным токоМ промышленной или повышенной частоты и располагаютс  на: сердечнике по диагонали.The core of the bridge is cut from a sheet of ferromagnetic alloy of high magnetic permeability. Coils a and b are fed by alternating current of industrial or increased frequency and are located on: the core diagonally.

.А.мпервитки питани  выбраны таким образом, что магнитна  проница-емость ветвей лежит в точке магнитной характеристики материала, соответствующей значительному изменению проницаемости -при небольшом изменении магнитного- аол .The AA nutrition tests are chosen in such a way that the magnetic permeability of the branches lies at the point of the magnetic characteristic of the material corresponding to a significant change in permeability — with a small change in the magnetic aol.

Магнитное сопротивление измерительной диагонали делаетс  большим , чем магнитное сопротивление ветвей.The magnetic resistance of the measuring diagonal is made larger than the magnetic resistance of the branches.

При отсутствии внешнего магнитного пол  магнитное сопротивление ветвей моста одинаково и в измерительной диагонали магнитного потока не будет.In the absence of an external magnetic field, the magnetic resistance of the branches of the bridge is the same and there will be no magnetic flux in the measuring diagonal.

Под вли нием внешнего, даже очень слабого, магнитного пол  равнов есие моста нарушаетс , так как сопротивление двух противоположных ветвей моста увеличиваетс  или уменьшаетс .Under the influence of an external, even very weak, magnetic field, the equilibrium of the bridge is disturbed, as the resistance of the two opposite branches of the bridge increases or decreases.

SU377320A 1948-03-26 1948-03-26 Device for measuring magnetic fields SU81934A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU377320A SU81934A1 (en) 1948-03-26 1948-03-26 Device for measuring magnetic fields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU377320A SU81934A1 (en) 1948-03-26 1948-03-26 Device for measuring magnetic fields

Publications (1)

Publication Number Publication Date
SU81934A1 true SU81934A1 (en) 1949-11-30

Family

ID=48255243

Family Applications (1)

Application Number Title Priority Date Filing Date
SU377320A SU81934A1 (en) 1948-03-26 1948-03-26 Device for measuring magnetic fields

Country Status (1)

Country Link
SU (1) SU81934A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU194593U1 (en) * 2019-08-26 2019-12-17 Александр Сергеевич Сойкин AMPOULE HOLDER FOR CHEMICAL FASTENING OF ANCHORS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU194593U1 (en) * 2019-08-26 2019-12-17 Александр Сергеевич Сойкин AMPOULE HOLDER FOR CHEMICAL FASTENING OF ANCHORS

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