Title:
OPTICAL STEAM QUALITY MEASUREMENT SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO2004036149
Kind Code:
A3
Abstract:
An optical measurement system is presented that offers precision on-line monitoring of the quality of steam. Multiple wavelengths of radiant energy are passed through the steam from an emitter to a detector. By comparing the amount of radiant energy absorbed by the flow of steam for each wavelength, a highly accurate measurement of the steam quality can be determined on a continuous basis in real-time. In an embodiment of the present invention, the emitter comprises three separate radiant energy sources for transmitting specific wavelengths of radiant energy through the steam. In a further embodiment, the wavelengths of radiant energy are combined into a single beam of radiant energy for transmission through the steam using time or wavelength division multiplexing. In yet a further embodiment, the single beam of radiant energy is transmitted using specialized optical elements.
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Inventors:
DAVIDSON JAMES R
PARTIN JUDY K
PARTIN JUDY K
Application Number:
PCT/US2003/027135
Publication Date:
January 27, 2005
Filing Date:
August 27, 2003
Export Citation:
Assignee:
BECHTEL BWXT IDAHO LLC (US)
International Classes:
G01N21/35; (IPC1-7): G01N21/35
Foreign References:
| US6633037B2 | 2003-10-14 | |||
| US4862001A | 1989-08-29 | |||
| US6337660B1 | 2002-01-08 | |||
| US5870192A | 1999-02-09 | |||
| US6731855B2 | 2004-05-04 | |||
| US5737104A | 1998-04-07 |
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