SU624181A1 - Method of measuring resiual magnetic flux in electromagnet core - Google Patents
Method of measuring resiual magnetic flux in electromagnet coreInfo
- Publication number
- SU624181A1 SU624181A1 SU772475864A SU2475864A SU624181A1 SU 624181 A1 SU624181 A1 SU 624181A1 SU 772475864 A SU772475864 A SU 772475864A SU 2475864 A SU2475864 A SU 2475864A SU 624181 A1 SU624181 A1 SU 624181A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- core
- measuring
- magnetic flux
- resiual
- electromagnet
- Prior art date
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- Saccharide Compounds (AREA)
Description
II
Изобретение относитс к области измерительной техники и может быть использовано при измерении величины остаточного магнитного потока в сердечнике электромагнита.The invention relates to the field of measurement technology and can be used to measure the magnitude of the residual magnetic flux in the core of an electromagnet.
Известен способ измерени остаг точного магнитного потока Ф, , который требует многократного изменени магнитного состо ни ферромагнитного материала сердечника в процессе измерени от состо ни отрицательного насьааени до поло жительного и наоборот .There is a known method for measuring an exact magnetic flux F, which requires a multiple change in the magnetic state of the ferromagnetic material of the core in the measurement process from the state of negative naxia to positive and vice versa.
Это обсто тельство понижает точность измерений и увеличивает их трудоемкость.This circumstance reduces the accuracy of measurements and increases their labor intensity.
Известен способ измерени остаточного магнитного потока в сердечнике электромагнита, заключающийс в намагничивании сердечника электромагнита nocTOHHHfcsvi магнитньзм полем до состо ни насыщени , не менее чем трехкратном перемагничивании сердечника из состо ни положительного насыщени в отрицательное и наоборот, размагничивании сердечника до величины остаточной магнитной индукции и определении с помощь гальванометра величины остаточного There is a method of measuring the residual magnetic flux in the core of an electromagnet, which consists in magnetising the core of an electromagnet nocTOHHHFcsvi magnetic field to a saturation state, at least threefold magnetic reversal of the core from a state of positive saturation to a negative and vice versa, demagnetizing the core to a magnitude of a magnetic induction saturation of the core to a negative and vice versa, demagnetizing the core to a magnitude of a magnetic induction saturation of the core to a negative and vice versa, demagnetizing the core to a magnitude of a magnetic induction of a positive saturation to a negative one and vice versa, demagnetizing the core to a magnitude of a magnetic induction saturation of the core to a negative one and vice versa, demagnetizing the core to the magnitude of the inductive magnetisation of the core to a negative one and vice versa, demagnetizing the core to a residual magnet inductive magnetism residual galvanometer
«чины"Ranks
ммагнитного потокаmagnetic flux
22
Однако перемагничивание сердечника из состо ни положительного насыщени в отрицательное и Hao6opot приводит к изменению геометрии магнитной цепи электромагнита из-за временногоотлипани кор от сердечника , а следовательно, к недопус-г тимой погрешности измерени ЯР . Кроме того, при измерении остаточo ного магнитного потока известным способом Используют две обмотки: измерительную и Намагничивающую. Подавл ющее большинство электромагнитов имеет одну обмотку. Нанесение However, the remagnetization of the core from the state of positive saturation to negative and Hao6opot leads to a change in the geometry of the magnetic circuit of the electromagnet due to the temporal detachment of the core from the core, and consequently, to an unacceptable error in the measurement of NR. In addition, when measuring the residual magnetic flux in a known manner, two windings are used: the measuring winding and the magnetizing winding. The vast majority of electromagnets have one winding. Drawing
5 . на сердечник электромагнита дополнительной измерительной обмотки св зано с нарушением конструкции электромагнита и большими затрата11и времени .five . on the core of the electromagnet of the additional measuring winding is associated with a violation of the design of the electromagnet and a large amount of time and expenditure.
00
Целью насто щего изобретени вл етс повышение точности и сокращение трудоемкости измерени остаточного магнитного потока в сердечнике электромагнита.The purpose of the present invention is to improve the accuracy and reduce the complexity of measuring the residual magnetic flux in the core of the electromagnet.
5five
Поставленна цель .достигаетс тем, что в предлагаемом способе измерени остаточного магнитного потока в сердечнике электромагнита сердечник размагничивают убывающим до н нул переменные магнитным полем, вреThe goal is achieved by the fact that in the proposed method of measuring the residual magnetic flux in the core of an electromagnet, the core is demagnetized by decreasing to zero the alternating magnetic field,
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772475864A SU624181A1 (en) | 1977-04-18 | 1977-04-18 | Method of measuring resiual magnetic flux in electromagnet core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772475864A SU624181A1 (en) | 1977-04-18 | 1977-04-18 | Method of measuring resiual magnetic flux in electromagnet core |
Publications (1)
Publication Number | Publication Date |
---|---|
SU624181A1 true SU624181A1 (en) | 1978-09-15 |
Family
ID=20704907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772475864A SU624181A1 (en) | 1977-04-18 | 1977-04-18 | Method of measuring resiual magnetic flux in electromagnet core |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU624181A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4456875A (en) * | 1981-07-07 | 1984-06-26 | Hydro-Quebec | Demagnetization circuit for current transformers |
CN110911086A (en) * | 2019-06-20 | 2020-03-24 | 北京能嘉科技有限公司 | Pipeline demagnetizing method, device and system in oil-gas pipeline welding operation |
-
1977
- 1977-04-18 SU SU772475864A patent/SU624181A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4456875A (en) * | 1981-07-07 | 1984-06-26 | Hydro-Quebec | Demagnetization circuit for current transformers |
CN110911086A (en) * | 2019-06-20 | 2020-03-24 | 北京能嘉科技有限公司 | Pipeline demagnetizing method, device and system in oil-gas pipeline welding operation |
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