Research of the High-Precision Dual-Channel Sound Velocity of Seawater Measurement System

Bao Feng Zhang; Zi Ming Xie; Zhi Wei Li; Jun Chao Zhu

doi:10.4028/www.scientific.net/AMM.668-669.940

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 668-669Research of the High-Precision Dual-Channel Sound...

Research of the High-Precision Dual-Channel Sound Velocity of Seawater Measurement System

Abstract:

For single channel sound velocity measurement system accuracy was generally not high,a high-precision dual-channel sound velocity of seawater measurement system was designed.Based on ultrasonic speed of sound measurement in seawater with time-of-flight method,the system used ARM microcontroller to combine with high-precision time interval measurement chip,and the sound velocity measurement was translated into distance and time measurement. Then the influence of the time delay of the system was eliminated by method of difference.The paper introduced the modules of the system,and the high-precision time interval measurement method as the key technology of time-of-flight method for the velocity measurement system was expounded.It wasproved by experiment that the measurement accuracy of the system on the velocity reached 0.019m/s.

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Periodical:

Applied Mechanics and Materials (Volumes 668-669)

Pages:

940-943

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.668-669.940

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Online since:

October 2014

Authors:

Bao Feng Zhang*, Zi Ming Xie, Zhi Wei Li, Jun Chao Zhu

Keywords:

Dual-Channel, High-Precision, Sound Velocity Measurement, Time-of-Flight Method

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* - Corresponding Author

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