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Title: System and technique for ultrasonic characterization of settling suspensions

Abstract

A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and records the response to the interrogating as a function of settling time, which is then used to determine suspension properties. Attenuation versus settling time for dilute suspensions, such as dilute wood pulp suspension, exhibits a peak at different settling times for suspensions having different properties, and the location of this peak is used as one mechanism for characterizing suspensions. Alternatively or in addition, a plurality of ultrasound receivers are arranged at different angles to a common transmitter to receive scattering responses at a variety of angles during particle settling. Angular differences in scattering as a function of settling time are also used to characterize the suspension.

Inventors:
 [1];  [1];  [1];  [1]
  1. Richland, WA
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908038
Patent Number(s):
7140239
Application Number:
10/391,070
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Greenwood, Margaret S, Panetta, Paul D, Bamberger, Judith A, and Pappas, Richard A. System and technique for ultrasonic characterization of settling suspensions. United States: N. p., 2006. Web.
Greenwood, Margaret S, Panetta, Paul D, Bamberger, Judith A, & Pappas, Richard A. System and technique for ultrasonic characterization of settling suspensions. United States.
Greenwood, Margaret S, Panetta, Paul D, Bamberger, Judith A, and Pappas, Richard A. Tue . "System and technique for ultrasonic characterization of settling suspensions". United States. https://www.osti.gov/servlets/purl/908038.
@article{osti_908038,
title = {System and technique for ultrasonic characterization of settling suspensions},
author = {Greenwood, Margaret S and Panetta, Paul D and Bamberger, Judith A and Pappas, Richard A},
abstractNote = {A system for determining properties of settling suspensions includes a settling container, a mixer, and devices for ultrasonic interrogation transverse to the settling direction. A computer system controls operation of the mixer and the interrogation devices and records the response to the interrogating as a function of settling time, which is then used to determine suspension properties. Attenuation versus settling time for dilute suspensions, such as dilute wood pulp suspension, exhibits a peak at different settling times for suspensions having different properties, and the location of this peak is used as one mechanism for characterizing suspensions. Alternatively or in addition, a plurality of ultrasound receivers are arranged at different angles to a common transmitter to receive scattering responses at a variety of angles during particle settling. Angular differences in scattering as a function of settling time are also used to characterize the suspension.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {11}
}

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Works referenced in this record:

Experimental study of the sedimentation of dilute and semi-dilute suspensions of fibres
journal, April 1999


A numerical study of the sedimentation of fibre suspensions
journal, December 1998


Attenuation of Sound in Suspensions and Emulsions: Theory and Experiments
journal, May 1972


Acoustic wave speed and attenuation in suspensions
journal, July 1992