Ultrasonic tomography for in-process measurements of temperature in a multi-phase medium

Patent · Thu Dec 31 23:00:00 EST 1992

OSTI ID:868643

Beller, Laurence S ^[1]

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1. Idaho Falls, ID

A method and apparatus for the in-process measurement of internal particulate temperature utilizing ultrasonic tomography techniques to determine the speed of sound through a specimen material. Ultrasonic pulses are transmitted through a material, which can be a multi-phase material, over known flight paths and the ultrasonic pulse transit times through all sectors of the specimen are measured to determine the speed of sound. The speed of sound being a function of temperature, it is possible to establish the correlation between speed of sound and temperature, throughout a cross-section of the material, which correlation is programmed into a computer to provide for a continuous in-process measurement of temperature throughout the specimen.

• Research Organization: EG & G IDAHO INC
• DOE Contract Number: AC07-76ID01570
• Assignee: EG&G Idaho, Inc. (Idaho Falls, ID)
• Patent Number(s): US 5181778
• OSTI ID: 868643
• Country of Publication: United States
• Language: English

Related Subjects

/374/73/
apparatus
computer
continuous
correlation
cross-section
determine
establish
flight
function
in-process
in-process measurement
internal
light path
light paths
material
measured
measurement
measurements
medium
method
multi-phase
particulate
paths
phase material
programmed
provide
pulse
pulses
sectors
sound
specimen
specimen material
speed
techniques
temperature
throughout
times
tomography
tomography techniques
transit
transit time
transit times
transmitted
ultrasonic
ultrasonic pulse
ultrasonic pulses
ultrasonic tomography
utilizing