Eddy current detection system and method

Abstract

The invention discloses an eddy current detection system and method. The system comprises a sound wave generation end; a sound wave receiving end; and the control device is coupled with the sound wave receiving end. The initial sound wave signals are transmitted to the to-be-measured area through the sound wave generating end, the initial sound wave signals received by the sound wave receiving end are a plurality of measurement sound pressure signals generated after passing through the to-be-measured area, and the control device judges whether eddy current exists in the to-be-measured area or not according to the phase difference of the measurement sound pressure signals and the phase difference of the preset sound pressure signals. As the underwater vehicle inevitably generates eddy current during navigation and the eddy current can exist for a long time, the eddy current is detected and analyzed through the technical scheme, the detection mode of the underwater vehicle is innovated, the dependence on a traditional sonar system is reduced, the stability of detection is improved due to the fact that the eddy current exists for a long time, and the detection accuracy of the underwater vehicle is improved. And the trace detection result of the underwater vehicle is high in precision.

Description

technical field [0001] The invention relates to the field of eddy current detection, in particular to an eddy current detection system and method. Background technique [0002] In recent years, underwater vehicles are mainly detected by sonar, so as to realize the identification of underwater targets. [0003] However, the mobility and concealment of underwater targets have developed rapidly. By laying sound-absorbing and sound-insulating acoustic coverings on the surface, and selecting low-noise equipment and high-performance vibration-isolating components inside, the noise of underwater vehicles is reduced. The level is getting lower and lower, resulting in the continuous limitation of sonar detection, the detection process time is long, the cost is high, the efficiency is low, and there is considerable uncertainty. [0004] Therefore, it is necessary to provide a new detection and identification angle based on the unique properties of underwater vehicle navigation. Unde...

AI Technical Summary

Problems solved by technology

[0003] However, the mobility and concealment of underwater targets are developing rapidly. By laying sound-absorbing and sound-insulating acoustic coverings on the surface, and selecting low-noise equipment and high-performance vibration-isolation components inside, the noise of underwater vehicles is reduced. The level is getting lower and lower, which leads to the continuous limitation of sonar detection. The detection process takes a long time, high cost, low efficiency, and considerable uncertainty

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