Title:
WIDE RANGE CONTINUOUS DILUTER
Document Type and Number:
WIPO Patent Application WO2006086615
Kind Code:
A8
Abstract:
A wide range continuous diluter for diluting gases that contain small particles to allow subsequent measurement of the diluted gases with an instrument is provided. A dilution gas inlet receives a dilution gas, and a sample gas inlet receives a sample gas. A flow meter measures the sample gas flow rate. A mixer receives and mixes the dilution gas and the sample gas at a dilution ratio. An instrument flow outlet provides a well-defined flow into the instrument from the mixture flow. A make-up gas inlet is arranged to provide make-up gas into the mixture flow at a controlled rate. Because the dilution gas flows at a controlled rate and the mixture flows at a controlled rate, changing the flow rate of the make-up gas causes a responsive change in the sample gas flow rate, thereby allowing continuous adjustment and control of the dilution ratio when desired.
Inventors:
WEI QIANG (US)
ASANO ICHIRO (JP)
ASANO ICHIRO (JP)
Application Number:
PCT/US2006/004702
Publication Date:
January 31, 2008
Filing Date:
February 10, 2006
Export Citation:
Assignee:
HORIBA LTD (JP)
WEI QIANG (US)
ASANO ICHIRO (JP)
WEI QIANG (US)
ASANO ICHIRO (JP)
International Classes:
G01N1/00
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