Title: Method for simultaneous measurement of mass loading and fluid property changes using a quartz crystal microbalance

Abstract

A method, using a quartz crystal microbalance, to obtain simultaneous measurement of solid mass accumulation and changes in liquid density-viscosity product. The simultaneous real-time measurements of electrical parameters yields that changes in surface mass can be differentiated from changes in solution properties. Two methods to obtain the admittance/frequency data are employed.

Inventors:

Granstaff, Victoria E ^[1]; Martin, Stephen J ^[1]

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1. Albuquerque, NM

Issue Date:

1993-01-01

Research Org.:

AT&T

OSTI Identifier:

868736

Patent Number(s):

5201215

Assignee:

United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N9/002 - {using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
G01N29/036 - by measuring frequency or resonance of acoustic waves
G01N2291/02818 - Density, viscosity
G01N11/162 - {Oscillations being torsional, e.g. produced by rotating bodies}
G01N2291/014 - Resonance or resonant frequency

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DOE Contract Number:  

AC04-76DP00789

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

method; simultaneous; measurement; mass; loading; fluid; property; changes; quartz; crystal; microbalance; obtain; solid; accumulation; liquid; density-viscosity; product; real-time; measurements; electrical; parameters; yields; surface; differentiated; solution; properties; methods; admittance; frequency; data; employed; simultaneous measurement; quartz crystal; solid mass; electrical parameter; crystal microbalance; liquid density; density-viscosity product; electrical parameters; time measurement; time measurements; /73/