Ultrasonic micro-terrain detection system in deep sea mining reverberation environment

Abstract

The invention discloses an ultrasonic micro-terrain detection system in a deep sea mining reverberation environment. The ultrasonic micro-terrain detection system comprises an arbitrary waveform generation module, a transceiving integrated ultrasonic probe, a signal transmitting and receiving conversion circuit, a signal preprocessing module, a data acquisition card and an industrial personal computer. The arbitrary waveform generation module comprises an arbitrary waveform output board card and a power amplifier. The output waveform parameters of the arbitrary waveform output board card are set by the industrial personal computer. The signal preprocessing module comprises a time gain compensation circuit, a gain control circuit, and an amplifying and filtering circuit. By means of the system, according to different reverberation environments, the real-time calculation of transmitted waves can be realized, and the self-adaptive waveform transmitting requirements under different reverberation environments are met. Meanwhile, the waveform replacement is simple and convenient. The signal transmitting and receiving conversion circuit can be used for isolating a transmitting circuit relatively high in exciting voltage from an echo signal receiving circuit low in voltage. The interference of reverberation can be effectively inhibited by the signal preprocessing module. As a result, the ultrasonic detection requirement of the underwater reverberation environment can be met.

Description

technical field [0001] The invention belongs to the technical field of underwater sonar detection, and relates to an ultrasonic micro-terrain detection system in a deep-sea mining reverberation environment, in particular to an ultrasonic micro-terrain detection system for adaptive waveform emission in different reverberation environments. Background technique [0002] Today, as land mineral resources are increasingly depleted, all countries have begun to shift their attention to the ocean, which is extremely rich in mineral resources. However, the surface of minerals is uneven. In various mining schemes, in order to effectively control the mixing rate of non-minerals and improve mining efficiency, it is necessary to detect the micro-topography of the area to be mined in front of the mining vehicle. [0003] The attenuation of sound waves underwater is relatively small, and the detection system is simple and has strong applicability. It has become a recognized effective metho...

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Problems solved by technology

The invention content of this patent mainly focuses on the design of the mechanical structure, without a detailed description of the signal transmitting and receiving parts, and does not consider the influence of different waveforms on the detection results

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