Air-coupled ultrasonic tomographic imaging of high-temperature flames

This paper illustrates the use of air-coupled ultrasonic tomography for the measurement of a highs temperature flame from a natural gas burner, using capacitive ultrasonic transducers in through transmission. This uses a transducer pair, which is scanned in two-dimensional sections at several angles...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2003-09, Vol.50 (9), p.1214-1218
Main Authors: Tat Hean Gan, Hutchins, D.A.
Format: Article
Language:English
Subjects:
Acoustical measurements and instrumentation
Acoustics
Applied sciences
Combustion of gaseous fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Ferroelectric materials
Fires
Fundamental areas of phenomenology (including applications)
Natural gas
Optical films
Optical filters
Optical receivers
Optical transmitters
Physics
Reconstruction
Temperature
Theoretical studies. Data and constants. Metering
Tomography
Transducers
Two dimensional
Ultrasonic imaging
Ultrasonic testing
Ultrasonic transducers
Ultrasonic variables measurement
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Summary:This paper illustrates the use of air-coupled ultrasonic tomography for the measurement of a highs temperature flame from a natural gas burner, using capacitive ultrasonic transducers in through transmission. This uses a transducer pair, which is scanned in two-dimensional sections at several angles to the jet axis. Travel-time data then is recorded along various paths in counter-propagating directions. By processing the data obtained from propagation times, images have been formed of variations in temperature within the flame, using the tomographic reconstruction approach.
ISSN:0885-3010
1525-8955
DOI:10.1109/TUFFC.2003.1235334