Magnetic force line balanced detection sensor employing wire rope

Abstract

The invention provides a magnetic force line balanced detection sensor employing a wire rope. The magnetic force line balanced detection sensor comprises an inductor, a detecting and processing circuit, an output drive circuit, a CAN conversion circuit and a power supply circuit, wherein the inductor is provided with an excitation source, two exciting coils and an induction coil; the excitation source is respectively connected with the two exciting coils and generates magnetic force lines which are the same in size and opposite in direction; the induction coil is arranged between the two exciting coils; and the output end of the induction coil is connected with the detecting and processing circuit. The magnetic force line balanced detection sensor is capable of accurately measuring all defects inside and outside the wire rope without a dead zone, and overcoming the influence of shaking of the wire rope on the measurement result. The magnetic force line balanced detection sensor is high in technological content, advanced in technology, stable and reliable to work, and wide in application range; the measurement sensitivity and accuracy are greatly improved; the damaged condition of the wire rope can be relatively easily and accurately found out; the sensor is stable, reliable, and easy to maintain by adopting the latest and most advanced components and modular structures in process; complicated environments of the applications are considered to the maximal extent; and field interference is eliminated, thereby stably working.

Description

technical field [0001] The invention relates to a sensor, in particular to a wire rope magnetic force line balanced flaw detection sensor. Background technique [0002] Wire rope flaw detection sensors are required in various fields such as mines, cableways, lifting equipment, elevators, port machinery, and cable bridges. [0003] At present, the working principle of the existing steel wire rope flaw detection sensors in China is to detect the magnetic flux leakage of the steel wire rope after magnetizing the steel wire rope to judge the defects of the steel wire rope; there are mainly two types: one is weak magnetic detection, such as Luoyang TCK and TST; the other is One is strong magnetic detection, such as the wire rope flaw detection sensor of Shanghai Qihua and Huazhong University of Science and Technology. The biggest disadvantages of them are: first, there is a problem with the uniformity of the magnetized steel wire rope, which leads to inaccurate measurement; Ina...

AI Technical Summary

Problems solved by technology

The biggest disadvantages of them are: first, there is a problem with the uniformity of the magnetized steel wire rope, which leads to inaccurate measurement; Inaccurate, which leads to difficulties in the detection of broken wires inside the wire rope

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