Intelligent wireless open-loop magnetic-flux acquiring method

Abstract

The invention relates to an intelligent wireless open-loop magnetic-flux acquiring method, and belongs to the technical field of magnetic-flux detection sensors. The method is that an RF-ID identifier on a cable can be read through an RF-ID card reading module on a sensor; an information chip is arranged in an open-loop magnetic-flux sensor; a magnetic flux acquiring instrument can be connected to the open-loop magnetic flux sensor to read the information of the open-loop magnetic flux; then the excitation voltage can be automatically set according to the information. The method can be carried out at the field; the obtained data can be synchronously sent to a remote computer center through a DTU, so as to achieve remote data storage and help analyzing; when testing a plurality of cables by a mobile manner, batteries are used for supplying power, instead of wires, so that the convenience of test is ensured.

Description

technical field [0001] The invention relates to an intelligent wireless open-loop magnetic flux collection method, which belongs to the technical field of magnetic flux detection sensors. Background technique [0002] In 1842, the British scientist Joule discovered the magnetoelastic effect. When the external mechanical load on the ferromagnetic material changes, its internal magnetization (permeability) changes. By measuring the magnetic permeability of the components made of ferromagnetic materials change to measure the internal force of the component. [0003] With the development of magnetic flux sensors, new open-loop magnetic flux products are constantly emerging. The open-loop magnetic flux adopts an open-loop structure, which can be easily installed on the cable that has been built, and can be removed from the cable to test other cables. Mobile testing is more flexible to use. [0004] The open-loop magnetic flux sensor has an open-loop structure, which is convenie...

AI Technical Summary

Problems solved by technology

[0005] When moving and testing multiple cables, the cable numbers cannot be distinguished, which may cause data confusion of multiple cables.

[0006] To test cables with different diameters, it is necessary to replace the corresponding magnetic flux sensor. The smaller the size of the magnetic flux sensor, the lower the excitation voltage. When the voltage collected by the collector is too high, the sensor may be damaged.

[0007] The known open-loop magnetic flux acquisition system does not have a battery, and a wire needs to be dragged behind for power supply during mobile measurement. It is inconvenient to test.

[0008] The data acquired by the known open-loop magnetic flux acquisition system needs to be uploaded to the remote terminal server through the computer after the test is completed, which is cumbersome and cannot be uploaded to the computer center for processing in time during the acquisition.

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