title: Ultrasonic pressure measurement in pressure vessels.
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.
authors.affiliation: State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Bi
authors.affiliation: State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
authors.forename: Hongliang
authors.initials: H
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
authors.forename: Zhiyao
authors.initials: Z
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
authors.forename: Hanhua
authors.initials: H
authors.lastname: Zhou
authors.affiliation: School of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, People's Republic of China.
authors.forename: Xianglong
authors.initials: X
authors.lastname: Yang