Acoustic transducer-based echo depth sounder simulation and verification method

Abstract

The invention discloses an acoustic transducer-based echo depth sounder simulation and verification method. According to the method, acoustic wave echoes sent by a depth sounder are simulated througha receiving transducer, a digital signal generator and a transmitting transducer; and after delay, the acoustic wave echoes are sent back to a depth sounder probe to carry out simulation detection atdifferent depths. The acoustic wave echoes are converted into echo acoustic signals through the transmitting transducer for a certain delay, and the method can be used for correcting the depth sounding values and depth sounding value errors. According to the method, the acoustic wave echoes are simulated by using the receiving transducer, the transmitting transducer and the digital signal generator according to the principle of echo depth sounders, so as to realize simulation and verification of the echo depth sounders; and the channel delay of a digital oscilloscope is calculated and the depth sounding value errors are corrected, so that the correctness of measurement is improved.

Description

technical field [0001] The invention relates to the technical field of acoustic equipment detection, in particular to an acoustic transducer-based simulation verification method for an echo sounder. Background technique [0002] The echo sounder is a device that uses sound waves to reflect in water for depth measurement. The results of water depth measurement directly affect the safety of ship navigation, the settlement of dredging engineering quantities, and the quality of related scientific research results. The early calibration of the echo sounder was carried out by manual measurement, the device was bulky, the method was cumbersome, and the accuracy was low, so it was difficult to realize the accurate calibration of the echo sounder. At present, the echo sounder simulation verification device based on electrical signals can accurately simulate water depth and pulse signals, and can replace the real water depth to check and calibrate single-beam echo sounders. The accura...

AI Technical Summary

Problems solved by technology

[0003] However, in the process of data analysis and calibration, the echo sounder analog verification device based on electrical signals can only be used as a supplement and perfect means for the actual comparison in water, and its acoustic transducer does not participate in the calibration process. Unverifiable, less reliable

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