Metal magnetic memory triaxial array sensor based on GMR effect

Abstract

The invention relates to a wire rope defect detection field, to be specific, relates to a metal magnetic memory triaxial array sensor based on GMR effect by aiming at a mine winder wire rope, namely a sensor used for the early diagnosis and the defect analysis of the mine winder wire rope by using giant magnetoresistance effect and metal magnetic memory technology The metal magnetic memory triaxial array sensor based on the GMR effect comprises a sensor array formed by N sensor probes uniformly disposed on a first circumference of an upper layer and N sensor probes uniformly disposed on a second circumference of a lower layer, a microprocessor module, a memory module, a power supply module, a signal processing module, and a temperature compensation module. The metal magnetic memory triaxial array sensor is capable of determining the defect level and the defect position of the wire rope accurately.

Description

technical field [0001] The invention relates to the field of steel wire rope defect detection, in particular to a metal magnetic memory three-axis sensor based on the GMR effect for mine hoist steel wire ropes, which utilizes the giant magnetoresistance effect and metal magnetic memory technology for early diagnosis and defect analysis of mine hoist steel wire ropes sensor. Background technique [0002] The mine hoisting wire rope is an important part connecting the hoisting container and the hoist. As an exchange channel between the underground and the underground, it is subjected to load impact and frequent wear during use, resulting in a decrease in its strength, which is likely to cause safety hazards and casualties. The traditional safety strategy for steel wire ropes is manual visual inspection or regular replacement based on experience, but wear and broken wires inside the steel wire rope are often not found in time. At present, there are ray testing, eddy current te...

AI Technical Summary

Problems solved by technology

Although the defect position has a tangential component H at the same time P (x) The maximum value is a signal feature, but because the direction is difficult to determine, it is ignored in many detection methods, resulting in missed detection and false detection.

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