A NON-INVASIVE AND NON-INTRUSIVE ULTRASONIC TRANSDUCER ARRAY FOR PROCESS TOMOGRAPHY3
Gerald Steiner, Frank Podd
Abstract:
Ultrasound process tomography is a method for imaging the acoustic impedance or sound velocity distribution within a closed pipe or vessel. It can be used for the determination of process parameters in industrial multiphase flows. A crucial part of the imaging system is the ultrasonic transducer array. It influences the achievable accuracy as well as the possible application areas. Existing approaches are either invasive, where the transducers are in direct contact with the flow media, or intrusive, where the transducers extend into the flow. To overcome these drawbacks, we present the design of a novel non-intrusive and non-invasive ultrasonic transducer array. Important design parameters are discussed and analyzed using simulations. A prototype transducer arrays is introduced and the feasibility of ultrasound process tomography using a non-invasive and non-intrusive sensor front-end is verified with measurements.
Keywords:
flow imaging, process tomography, ultrasound tomography, ultrasonic transducer
Download:
PWC-2006-TC9-020u.pdf
DOI:
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Event details
Event name:
XVIII IMEKO World Congress
Title:

Metrology for a Sustainable Development

Place:
Rio de Janeiro, BRAZIL
Time:
17 September 2006 - 22 September 2006
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