Method for compensating heterogeneity of magnetic field coil by shunting

A technology of non-uniformity and magnetic field coils, which is applied in the direction of coils, coil manufacturing, electrical components, etc., and can solve problems such as differences in magnetic field non-uniformity in the working area of ​​magnetic field coils

Inactive Publication Date: 2011-07-27
CSIC NO 710 RES & DEV INST
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the use of magnetic field coils, because the number of turns of the coil windings can only be integers and the actual size of the coils changes due to machining errors, the actual non-uniformity of the magnetic field in the working area of ​​the magnetic field coils is quite different from the theoretical design value.

Method used

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  • Method for compensating heterogeneity of magnetic field coil by shunting
  • Method for compensating heterogeneity of magnetic field coil by shunting
  • Method for compensating heterogeneity of magnetic field coil by shunting

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Embodiment Construction

[0020] Such as figure 1 and figure 2 As shown, a method for compensating the inhomogeneity of the magnetic field coil by shunting, the power supply is provided by the steady current source 1, a shunt resistance box 2 is connected in parallel to each coil of the magnetic field coil 3, and a single magnetic field coil 3 is passed through the shunt resistance box for fine-tuning The current makes the equivalent turns ratio of each magnetic field coil 3 reach a theoretical optimum value, so as to compensate the non-uniformity of the magnetic field caused by the turns of the coil and machining errors.

[0021] The resistance selection of the shunt resistance box should obey the following formula:

[0022] R i = K Bi K B 0 ′ K B ...

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Abstract

The invention discloses a method for compensating heterogeneity of a magnetic field coil by shunting, in particular relates to a method for compensating heterogeneity of a magnetic field coil system consisting of a plurality of coils. The magnetic field coil is a carrier for a magnetics testing experiment; each coil is connected in parallel with a current adjusting resistance box for adjusting current flowing through a single coil; and the current flowing through a singe coil is finely adjusted by using a shunting resistance box, so that the proportion of an equivalent number of turns of each coil is up to a theoretical optimum value, and the magnetic field heterogeneity caused by the number of turns of the coil and the machining error is compensated.

Description

technical field [0001] The invention relates to the non-uniformity compensation technology of the magnetic field coil, in particular to the non-uniformity compensation method of the magnetic field coil system composed of a plurality of coils. Background technique [0002] At present, the use of magnetic field coils, because the number of turns of the coil windings can only be integers and the actual size of the coils changes due to machining errors, the actual non-uniformity of the magnetic field in the working area of ​​the magnetic field coils is quite different from the theoretical design value. Taking the Rubens coil as an example, the theoretical value of the non-uniformity of the magnetic field in the working area of ​​the 10% radius of the outer diameter of the coil is less than 1×10 -5 , and the actual non-uniformity can reach 1×10 -3 above. Contents of the invention [0003] The purpose of the present invention is to provide a method for compensating the non-uni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F5/00H01F41/04
Inventor 程华富蔡传真李享韩晓东侯钱
Owner CSIC NO 710 RES & DEV INST
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