High-precision magnetic testing method and device

Abstract

The invention discloses a high-precision magnetic testing method and a device. The device comprises a nonmagnetic turntable, a sensor support, a nonmagnetic sensor mounting and adjusting base, a three-axis fluxgate sensor, a cable transfer box, a voltage-stabilizing power supply, a PXI case, and an input and display terminal device, wherein the three-axis fluxgate sensor is connected with the mounting surface of the nonmagnetic sensor mounting and adjusting base through a screw; the mounting surface of the nonmagnetic sensor mounting and adjusting base is provided with a gradienter; the nonmagnetic sensor mounting and adjusting base is placed on the sensor support; a tested object is placed on the sensor transfer block nonmagnetic turntable, and the center and the nonmagnetic turntable are located on the same vertical line. The data acquisition hardware resources are saved, and the scalability of the data acquisition channel is added. Due to the use of the cable transfer box, wiring of the device becomes simpler. The device can automatically complete the magnetic testing on the tested object, and forceful support is provided for evaluation on the magnetic material and the finished product performance.

Description

technical field [0001] The invention relates to the technical field of automatic testing, in particular to a high-precision magnetic testing method and device. Background technique [0002] With the continuous development of electrical engineering, magnetic materials have been widely used in various aspects of traditional industries. As a key component, the magnetic material often directly affects the performance of the product. In the field of aerospace, the size of the spacecraft's magnetism will directly affect the accuracy of its attitude control system and space magnetic field detection instruments. [0003] In order to understand the magnetic properties of a product, it is necessary to accurately measure the magnetic properties of the product. Therefore, magnetic testing has practical significance in engineering technology. Accurate testing of magnetic properties makes it possible to evaluate the performance of various magnetic materials and finished products, and pr...

AI Technical Summary

Problems solved by technology

[0005] 1. High requirements for data acquisition cards: Existing devices often use parallel methods for data acquisition. When the number of sensors is large, the requirements for hardware resources of acquisition cards increase accordingly;

[0006] 2. Poor flexibility: In traditional devices, the sensor model and specification are fixedly matched with the data acquisition system. After changing the sensor, the test device often cannot work normally;

[0007] 3. The installation is cumbersome: there are many power and communication cables in the existing device, and errors are prone to occur during the installation process

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