Ultrasonic pressure measurement in pressure vessels

Yao Bi; Hongliang Zhou; Zhiyao Huang; Hanhua Zhou; Xianglong Yang

doi:10.1063/1.4902338

Ultrasonic pressure measurement in pressure vessels

Rev Sci Instrum. 2014 Dec;85(12):125002. doi: 10.1063/1.4902338.

Authors

Yao Bi¹, Hongliang Zhou¹, Zhiyao Huang¹, Hanhua Zhou¹, Xianglong Yang²

Affiliations

¹ State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
² School of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, People's Republic of China.

PMID: 25554318
DOI: 10.1063/1.4902338

Abstract

Based on the reflected longitudinal wave, a new non-intrusive method for pressure measurement is proposed. The acoustoelastic theory and the thin-shell theory are introduced to develop the pressure measurement model in cylindrical pressure vessels. And a pressure measurement system is constructed to evaluate the effectiveness of the proposed method. The pressure measurement is implemented by measuring the travel-time change between two received ultrasonic sensors. The experimental results verify the feasibility and effectiveness of this new non-intrusive method. Compared with the non-intrusive pressure measurement method based on the critically refracted longitudinal wave (LCR wave), the proposed non-intrusive pressure measurement method has the advantages of higher sensitivity and higher signal-to-noise ratio.