Development of In Situ Acoustic Instruments for The Aquatic Environment Study

TL;DR

This paper presents the development of an automated in situ acoustic instrument for measuring sound speed and ultrasound attenuation in aquatic environments, enhancing accuracy with modern converters.

Contribution

It introduces a new prototype instrument based on existing sound velocity profilers, replacing outdated components with advanced converters for improved measurement precision.

Findings

Prototype device successfully developed and tested.

Improved measurement accuracy demonstrated.

Preliminary tests show promising results.

Abstract

Based on the analysis of existing acoustic methods and instruments, a prototype of an automated instrument has been developed to perform joint measurements in situ of two parameters: sound speed and ultrasound attenuation. The device is based on existing sound velocity profilers. It was proposed to replace the TDC-GP22 converters used in the sound speed meter ISZ-1 with more advanced modern modified converters TDC-GP30, which can significantly improve the accuracy of measuring the amplitude of the reflected acoustic signal. The programs for processing signals from the primary acoustic transducer have been developed. The model of the device passed preliminary tests.