Detection Method for Single-Beam Echo Sounder Based on Equivalent Measurement

Abstract

Acoustic instruments like the single-beam echo sounder are basic tools for marine scientific research; consequently, the effective detection and calibration of the equipment are crucial to ensure the quality of marine data. Considering that the detection of full-range precision index of a single-beam echo sounder cannot be carried out in a laboratory sink, this paper proposes a new detection method based on equivalent measurement. In an anechoic environment, a circuit is used to simulate the long-distance propagation of the sound wave. The full-range equivalent measurement of the single-beam echo sounder is realized within the limited range of the laboratory sink. Experimental verification proves that the proposed method is feasible and provides a new technical approach for the detection of marine acoustic instruments.