Ultrasonic fluid densitometer having liquid/wedge and gas/wedge interfaces

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873063

Greenwood, Margaret S ^[1]

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1. Richland, WA

The present invention is an ultrasonic liquid densitometer that uses a material wedge having two sections, one with a liquid/wedge interface and another with a gas/wedge interface. It is preferred that the wedge have an acoustic impedance that is near the acoustic impedance of the liquid, specifically less than a factor of 11 greater than the acoustic impedance of the liquid. Ultrasonic signals are internally reflected within the material wedge. Density of a liquid is determined by immersing the wedge into the liquid and measuring reflections of ultrasound at the liquid/wedge interface and at the gas/wedge interface.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• DOE Contract Number: AC06-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): US 6082181
• OSTI ID: 873063
• Country of Publication: United States
• Language: English

Related Subjects

ultrasonic
fluid
densitometer
liquid
wedge
gas
interfaces
material
sections
interface
preferred
acoustic
impedance
near
specifically
factor
11
signals
internally
reflected
density
determined
immersing
measuring
reflections
ultrasound
material wedge
fluid densitometer
internally reflected
ultrasonic signal
acoustic impedance
ultrasonic signals
ultrasonic fluid
sonic signals
measuring reflection
wedge interface
ultrasonic liquid
sonic signal
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