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Fluxgate with single iron core and three-axis fluxgate sensor

A technology of fluxgate and single iron core, applied in the field of fluxgate, can solve the problems of reducing manufacturing cost and difficulty in sensor processing, and achieve the effect of reducing manufacturing cost and convenient processing and winding

Inactive Publication Date: 2011-07-20
JIANGSU ZHONGHAI HEAVY MACHINE TOOL +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of the existing three-axis fluxgate sensor, which is difficult to process, the present invention provides a single-core fluxgate, which adopts a long iron core, which can make the processing and winding more convenient, and can better ensure the measurement axis and installation. Axis alignment reduces manufacturing costs

Method used

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  • Fluxgate with single iron core and three-axis fluxgate sensor
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  • Fluxgate with single iron core and three-axis fluxgate sensor

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Embodiment Construction

[0031] The following examples refer to Figure 1~4 .

[0032]The single-core fluxgate includes an exciting coil 1, an iron core 2, a measuring coil 3 and a skeleton 4, and also includes a casing 17. The iron core 2 is in the shape of a long strip, and the iron core 2 is made of permalloy or amorphous soft magnetic The material has a thickness between 0.02mm and 0.1mm, a width of 1mm, and the same length as the skeleton 4 with the round hole. The excitation coil 1 is wound on the inner layer of the skeleton 4 ; the measuring coil 3 is wound on the outer layer of the skeleton 4 . Both the front frame end 18 and the rear frame end 196 are square. Two lead slots 20 are processed on the two corners of the front end 18 of the skeleton, the lead wires at the input end 24 of the excitation coil and the lead wires at the output end 25 of the excitation coil are drawn from the right lead slot 20; the lead wires at the input end 26 of the measurement coil and the output end 27 of the m...

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Abstract

The invention discloses a fluxgate with a single iron core and a three-axis fluxgate sensor, solving the technical problem of processing difficulty of a traditional three-axis fluxgate sensor. The invention adopts the technical scheme that the iron core of the fluxgate is of a strip shape, is more convenient to process and wind, and can better ensure consistency between a measuring shaft and a mounting shaft and decrease the manufacture cost. The three-axis fluxgate sensor adopting the strip iron core fluxgate is of a separation structure of the fluxgate and a sensor base, thus, the complexity for processing, winding and assembling of the iron core the coil is lessened, the three single-axis fluxgates are ensured to be mutually perpendicular and convenient to fix, and the reliability and the maintainability of the three-axis fluxgate sensor are improved.

Description

technical field [0001] The invention relates to a fluxgate, in particular to a fluxgate with a single iron core. It also relates to a fluxgate three-axis sensor composed of such a single-core fluxgate. Background technique [0002] Fluxgate sensor is a magnetic field component sensor with good comprehensive performance. Three single-axis fluxgates are installed vertically to form a three-axis fluxgate sensor. How to ensure that the three uniaxial fluxgates are perpendicular to each other, reduce the mutual influence between the three uniaxial fluxgate cores and the signal, make the fluxgate easy to process, easy to wind, improve its reliability and maintainability Sex is the key technical problem to be solved by the three-axis fluxgate sensor. [0003] refer to Figure 5-7 . The document “US Patent No. US 5,672,97” discloses a three-axis fluxgate sensor, which is composed of three uniaxial fluxgates and a feedback coil 5 . The single-axis fluxgate first winds the exciti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/02
Inventor 刘诗斌严家明
Owner JIANGSU ZHONGHAI HEAVY MACHINE TOOL
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