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; providing sound energy to the 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 L=(2m-1)v.sub.s/4f, where f is the frequency where the disturbance has an amplitude maximum, v.sub.s is the speed of sound in the material, and m is a positive integer (1, 2, 3, . . . ).
- Inventors:
-
- Gettysburg, PA
- Frederick, MD
- Issue Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1029275
- Patent Number(s):
- 8030633
- Application Number:
- US patent applicaiton 12/233,989
- Assignee:
- BP Corporation North America Inc. (Naperville, IL)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
- DOE Contract Number:
- AC36-98GO10337
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 47 OTHER INSTRUMENTATION
Citation Formats
Stoddard, Nathan G, and Clark, Roger F. Methods and systems for monitoring a solid-liquid interface. United States: N. p., 2011.
Web.
Stoddard, Nathan G, & Clark, Roger F. Methods and systems for monitoring a solid-liquid interface. United States.
Stoddard, Nathan G, and Clark, Roger F. Tue .
"Methods and systems for monitoring a solid-liquid interface". United States. https://www.osti.gov/servlets/purl/1029275.
@article{osti_1029275,
title = {Methods and systems for monitoring a solid-liquid interface},
author = {Stoddard, Nathan G and Clark, Roger F},
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; providing sound energy to the 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 L=(2m-1)v.sub.s/4f, where f is the frequency where the disturbance has an amplitude maximum, v.sub.s is the speed of sound in the material, and m is a positive integer (1, 2, 3, . . . ).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {10}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
A theoretical analysis of the laser melt-level monitoring system for the Czochralski crystal growing furnaces
journal, June 1997
- Li, Zhixin; Koziol, J.
- IEEE Transactions on Instrumentation and Measurement, Vol. 46, Issue 3, p. 722-730
Laser ultrasonic sensing of the melting and solidification of cadmium telluride
journal, May 2001
- Queheillalt, Douglas T.; Wadley, Haydn N. G.
- Journal of Crystal Growth, Vol. 225, Issue 1
Application of pulse-echo ultrasonics to locate the solid/liquid interface during solidification and melting
journal, December 1986
- Parker, R. L.; Manning, J. R.
- Journal of Crystal Growth, Vol. 79, Issue 1-3
Ultrasonic evaluation of semi-solid metals during processing
journal, October 2000
- Jen, C-K; Liaw, J-W; Chen, T-F
- Measurement Science and Technology, Vol. 11, Issue 11
Localization of the Solid/Liquid Interface during Directional Solidification of Silicon by a Pulse-Echo Ultrasonic Technique
book, January 1991
- Eyer, A.; Haas, F.; Schätzte, P.
- Tenth E.C. Photovoltaic Solar Energy Conference