- Ultrasound Tomography: A Decade-Long Journey from the Laboratory to the Clinic

2015 ◽  
pp. 178-213
Keyword(s):  
Ultrasound Tomography

scholarly journals Ultrasonic Time-of-Flight Computed Tomography for Investigation of Batch Crystallisation Processes

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 639
Author(s):  
Panagiotis Koulountzios ◽  
Tomasz Rymarczyk ◽  
Manuchehr Soleimani
Keyword(s):  
Spatial Information ◽  
Injection Rate ◽  
Ultrasound Tomography ◽  
Measurement Systems ◽  
Process Dynamics ◽  
Tomography System ◽  
Ultrasonic Time ◽  
Crystallisation Process ◽  
Liquid Suspensions

Crystallisation is a crucial step in many industrial processes. Many sensors are being investigated for monitoring such processes to enhance the efficiency of them. Ultrasound techniques have been used for particle sizing characterization of liquid suspensions, in crystallisation process. An ultrasound tomography system with an array of ultrasound sensors can provide spatial information inside the process when compared to single-measurement systems. In this study, the batch crystallisation experiments have been conducted in a lab-scale reactor in calcium carbonate crystallisation. Real-time ultrasound tomographic imaging is done via a contactless ultrasound tomography sensor array. The effect of the injection rate and the stirring speed was considered as two control parameters in these crystallisation functions. Transmission mode ultrasound tomography comprises 32 piezoelectric transducers with central frequency of 40 kHz has been used. The process-based experimental investigation shows the capability of the proposed ultrasound tomography system for crystallisation process monitoring. Information on process dynamics, as well as process malfunction, can be obtained via the ultrasound tomography system.

Enabling technologies for robot assisted ultrasound tomography

2016 ◽  
Vol 13 (1) ◽  
pp. e1746 ◽  
Author(s):  
Fereshteh Aalamifar ◽  
Rishabh Khurana ◽  
Alexis Cheng ◽  
Xiaoyu Guo ◽  
Iulian Iordachita ◽  
...  
Keyword(s):  
Robot Assisted ◽  
Ultrasound Tomography ◽  
Enabling Technologies

Diagnostic Flow Metering using Ultrasound Tomography

2010 ◽  
Author(s):  
Sejong Chun ◽  
Byung-Ro Yoon ◽  
Kwang-Bock Lee ◽  
Jong-Seung Paik ◽  
M. A. Wahid ◽  
...  
Keyword(s):  
Ultrasound Tomography ◽  
Flow Metering

scholarly journals A method of laser ultrasound tomography for solid surfaces mapping

2018 ◽  
Vol 145 ◽  
pp. 05009 ◽  
Author(s):  
Vasily Zarubin ◽  
Anton Bychkov ◽  
Alexander Karabutov ◽  
Varvara Simonova ◽  
Elena Cherepetskaya
Keyword(s):  
High Performance ◽  
Surface Profile ◽  
Solid Surfaces ◽  
Laser Ultrasound ◽  
Ray Method ◽  
Ultrasound Tomography ◽  
Bodies Of Revolution ◽  
Suggested Approach ◽  
Preliminary Preparation ◽  
Production Inspection

Surface control is an important problem for production inspection in industry. Traditionally it is solved using mechanical and optical profilometry, providing high spatial resolution. However, such methods are inappropriate for bodies immersed in opaque liquids and require preliminary preparation of samples. Current work focuses on an application of a method of laser ultrasound tomography to mapping of solid surfaces. The suggested approach combines high acoustical resolution, high performance and allows profilometry of contaminated and immersed samples. An automated prototype for real-time surface profile measurements is constructed and tested on several bodies of revolution. Linear approximation of a cylinder profile obtained by the prototype shows maximum approximation inconsistency of 15 μm. The results are verified by those obtained by the conventional x-ray method.

Ultrasound Tomography of Excised Brains: Normal and Pathological Anatomy

1978 ◽  
pp. 269-276 ◽  
Author(s):  
J. T. Patrick ◽  
F. J. Fry ◽  
G. Gardner ◽  
T. D. Franklin ◽  
J. Muller ◽  
...  
Keyword(s):  
Pathological Anatomy ◽  
Ultrasound Tomography
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