Fluxgate probe based on ferrous amorphous alloy magnetic core and method for making fluxgate probe

Abstract

The invention relates to a fluxgate probe based on a ferrous amorphous alloy magnetic core and a method for making the fluxgate probe. The probe comprises a magnetic core main shaft, and an excitation coil and a detection coil which are respectively wound at the two ends of the magnetic core main shaft, wherein the magnetic core main shaft comprises a magnetic core made of ferrous amorphous foil tapes and an external sleeve coated outside the magnetic core. The method for making the probe comprises the following steps of: 1, performing heat treatment on the ferrous amorphous foil tapes; 2, coating glue on the surface of one of the ferrous amorphous foil tapes to make the ferrous amorphous foil tape hard, or coating the glue on the plurality of ferrous amorphous foil tapes and then laminating and hardening the ferrous amorphous foil tapes to make the magnetic core after room temperature is reached by air cooling; 3, coating thin materials made of paper outside the magnetic core, and bonding and solidifying the thin materials made of paper by using the glue to form the external sleeve and then make the magnetic core main shaft; and 4, respectively and symmetrically winding the excitation coil and the detection coil at the two ends of the magnetic core main shaft to form the fluxgate probe. By the fluxgate probe provided by the invention, the signal-to-noise ratio and the sensitivity are improved. The method for making the probe is simple in operation and low in cost.

Description

technical field [0001] The invention is a fluxgate probe based on an iron-based amorphous alloy magnetic core and a manufacturing method thereof, and belongs to the innovative technology of the fluxgate probe and the manufacturing method thereof. Background technique [0002] Fluxgate sensors (hereinafter referred to as fluxgates) are used to measure weak magnetic fields. They have the characteristics of high resolution, wide measurement range, high reliability, simple structure, economical and durable, and can directly measure magnetic field components. The key component of the fluxgate is the fluxgate probe, which is composed of a magnetic core, an excitation coil, a detection coil and other parts. Among them, the magnetic core is the core of the probe, which is made of soft magnetic material. The tissue performance and uniformity of the material have a great influence on the signal-to-noise ratio of the probe and even the characteristics of the fluxgate. At present, the ...

AI Technical Summary

Problems solved by technology

At present, the probes are mostly made of crystalline soft magnetic materials, and there are inevitably defects such as composition segregation and micropores inside the material.

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