Development of In Situ Acoustic Instruments for The Aquatic Environment Study
This work provides an incremental improvement for aquatic environment studies by enhancing measurement accuracy with updated hardware.
The researchers developed an automated instrument prototype for in situ measurement of sound speed and ultrasound attenuation in aquatic environments, achieving improved accuracy in reflected acoustic signal amplitude measurements by upgrading converters.
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.