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Title: Methods and systems for monitoring a solid-liquid interface

Abstract

Methods and systems are provided for monitoring a solid-liquid interface, including providing a vessel configured to contain an at least partially melted material; detecting radiation reflected from a surface of a liquid portion of the at least partially melted material that is parallel with the liquid surface; measuring a disturbance on the surface; calculating at least one frequency associated with the disturbance; and determining a thickness of the liquid portion based on the at least one frequency, wherein the thickness is calculated based on.times. ##EQU00001## where g is the gravitational constant, w is the horizontal width of the liquid, and f is the at least one frequency.

Inventors:
 [1];  [2];  [3]
  1. Gettysburg, PA
  2. Frederick, MD
  3. Union Bridge, MD
Issue Date:
Research Org.:
BP Corporation North America Inc (Warrenville, IL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1012826
Patent Number(s):
7758696
Application Number:
12/233,694
Assignee:
BP Corporation North America Inc (Warrenville, IL)
Patent Classifications (CPCs):
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
AC36-98GO10337
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Stoddard, Nathan G, Clark, Roger F, and Kary, Tim. Methods and systems for monitoring a solid-liquid interface. United States: N. p., 2010. Web.
Stoddard, Nathan G, Clark, Roger F, & Kary, Tim. Methods and systems for monitoring a solid-liquid interface. United States.
Stoddard, Nathan G, Clark, Roger F, and Kary, Tim. Tue . "Methods and systems for monitoring a solid-liquid interface". United States. https://www.osti.gov/servlets/purl/1012826.
@article{osti_1012826,
title = {Methods and systems for monitoring a solid-liquid interface},
author = {Stoddard, Nathan G and Clark, Roger F and Kary, Tim},
abstractNote = {Methods and systems are provided for monitoring a solid-liquid interface, including providing a vessel configured to contain an at least partially melted material; detecting radiation reflected from a surface of a liquid portion of the at least partially melted material that is parallel with the liquid surface; measuring a disturbance on the surface; calculating at least one frequency associated with the disturbance; and determining a thickness of the liquid portion based on the at least one frequency, wherein the thickness is calculated based on.times. ##EQU00001## where g is the gravitational constant, w is the horizontal width of the liquid, and f is the at least one frequency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {7}
}

Works referenced in this record:

Laser ultrasonic sensing of the melting and solidification of cadmium telluride
journal, May 2001


Application of pulse-echo ultrasonics to locate the solid/liquid interface during solidification and melting
journal, December 1986


Ultrasonic evaluation of semi-solid metals during processing
journal, October 2000