SIMULATION STUDIES OF WAVES TRANSMISSION IN A STEEL-VESSEL ULTRASONIC TOMOGRAPHY SYSTEM
DOI:
https://doi.org/10.11113/jt.v77.6467Keywords:
Ultrasonic Transducer, Tomography, Acoustic Pressure, Imaging, WavelengthAbstract
This paper addresses a specific form of inspection, that of ultrasonic wave propagation in the ultrasonic tomographic imaging system. From the sensing configuration standpoint, ultrasound wave simulation is an important imaging process. From the simulation results, ultrasonic sensors with suitable centre frequency can be mounted spherically on a sealed vessel, facilitating the local pitch-catch measurements of the fan-beam sensor configuration to reconstruct the ultrasound image as a fluid flow diagnostic tool. Two basic quantities are measured in ultrasonic flow systems: time-of-flight or the amount of time for the sound to travel through the sample, and the amplitude of the received signal. We used the acoustics pressure model in COMSOL version 4.2a to predict the propagation of acoustic waves through three-phase structures and bubbly flow. Our overall goal is to enable structurally specific inspection tasks to be optimized, taking into account both the physical aspects of the ultrasound propagation and the dynamic capabilities and restrictions of the vessel platform.
References
M. H. F. Rahiman, R. A. Rahim, M. H. F. Rahiman, and M. Tajjudin. 2006. Ultrasonic Transmission-Mode Tomography Imaging For Liquid-Gas-Phase Flow. IEEE Sensors J. 6(6): 1706-1715.
Mohd Hafiz bin Fazalul Rahiman. 2005. Non-Invasive Imaging Of Liquid/Gas Flow Ultrasonic Transmission-Mode Tomography. Universiti Teknologi Malaysia: M.Sc. Thesis.
Javad abbaszadeh, Herlina Binti Abdul Rahim, and Ruzairi Bin Abdul Rahim. 2012. Optimizing the Frequency Of Ultrasonic Tomography System With A Metal Pipe Conveyor. IEEE 8th International Colloquium on Signal Processing and its Applications. 52-57.
Goh Chiew Loon, Ruzairi Abdul Rahim, Suzanna Ridzuan Awa, Fazlul Rahman Mohd Yunusa, Anita Ahmad, Khairul Hamimah Abbas. 2014. Study and Design of an Ultrasonic Flow Tomographic Front-End Multi Level Measurement System. Jurnal teknologi. 69(8): 1-4.
Nico F. Declercq, Rudy Briers, Joris Degrieck, and Oswald Leroy. 2005. The History and Properties of Ultrasonic Inhomogeneous Waves. IEEE Transactions On Ultrasonics, Ferroelectrics, And Frequency Control. 52.
Nor Muzakkir Nor Ayob, Jaysuman Pusppanathan, Ruzairi Abdul Rahim, Hafiz Fazalul Rahiman, Fazlul Rahman Mohd Yunus, Zulkarnay Zakaria, Goh Chiew Loon, Salinda Buyamin, Nasarudin Ahmad, Yusri Md Yunos, Norhaliza Abdul Wahab. 2014. Small Gas Component Detection using Ultrasonic Transmission-mode Tomography System. Jurnal Teknologi. 69(8): 95-100.
Olympus. 2006. Ultrasonic Transducers Technical Notes. Application Note.
COMSOL. 2011. Introduction to the Acoustics Module. COMSOL Technical Note.
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