Ultrasonic fluid densitometer for process control

Patent · Fri Dec 31 23:00:00 EST 1999

OSTI ID:873062

Greenwood, Margaret S ^[1]

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1. Richland, WA

The present invention is an ultrasonic fluid densitometer that uses at least one pair of transducers for transmitting and receiving ultrasonic signals internally reflected within a material wedge. A temperature sensor is provided to monitor the temperature of the wedge material. Density of a fluid is determined by immersing the wedge into the fluid and measuring reflection of ultrasound at the wedge-fluid interface and comparing a transducer voltage and wedge material temperature to a tabulation as a function of density.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA
• DOE Contract Number: AC06-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): US 6082180
• OSTI ID: 873062
• Country of Publication: United States
• Language: English

Related Subjects

/73/
comparing
control
densitometer
density
determined
fluid
fluid densitometer
function
immersing
interface
internally
internally reflected
material
material wedge
measuring
measuring reflection
monitor
pair
process
process control
provided
receiving
receiving ultrasonic
reflected
reflection
sensor
signals
signals internally
sonic signal
sonic signals
tabulation
temperature
temperature sensor
transducer
transducers
transmitting
ultrasonic
ultrasonic fluid
ultrasonic signal
ultrasonic signals
ultrasound
voltage
wedge
wedge-fluid
wedge-fluid interface