Phase control transducer array and phase control method for acoustic Doppler ocean current profile instrument

Abstract

The invention relates to a phase controlled energy converter array and phase controlling method used for acoustic Doppler current section apparatus, the energy converter array has about 1000 energy converters uniformly distributed in a circular plane at semi-wavelength intervals, it uses the condition that the energy converter array generates grating petals to group all the energy converters, where it uses an group at the center of the energy converter array as a reference group, connects the energy converter in the same relative position of each group in parallel with the relative energy converter in the reference group so as to form 16-channel energy converters, and by controlling the phases and amplitudes of transmitted and received signals of the 16-channel energy converters, realizes four inclined-orthogonal structural phase controlled transmission and reception beams which make an angle of 30 degrees with the vertical line of the phase controlled energy converter array. Its beneficial effects: it largely reduces the size of energy converter array, reduces the cost in producing and manufacturing low-frequency large-depth acoustic Doppler current section apparatus, thus making the acoustic Doppler current section apparatus have better mounting applicability and larger use range.

Description

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AI Technical Summary

Benefits of technology

This inventor describes an improved way for measuring waves on water surfaces with sound wave sensors called sonar arrays or hydrophones. These devices use tiny transmitter/receiver (transmitters) arranged into groups made up almost million times smaller compared to traditional methods like pressure gauges used at sea level. By focusing their energy onto specific areas instead of spread out over large distances, these arrangements can make measurements more accurate even when they're located deeper underwater due to reduced mass and space requirement.

Problems solved by technology

This patented technology describes an apparatus used for measuring velocity over time by analyzing signals from multiple sources at different angles around its center point called the Transductor Array. However, this device suffers from several technical drawbackes such as being bulky due to having many components attached together, requiring complicated mounting procedures, limited data collection capabilities, difficulty adjustment during operation, poor signal-to-noise ratios caused by imperfections along the transmission path, etcetera.

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