Title:
GAS-COMPONENT MEASUREMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/005074
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a gas-component measurement apparatus capable of swiftly and accurately obtaining components of a sample gas including argon. This gas-component measurement apparatus measures components of a sample gas including argon, and nitrogen or oxygen. A condenser lens (L) is used to condense laser light emitted from a laser irradiation device (14), and an inside of a gas supply tube (103) is irradiated with said laser light. Resultant scattered light from the sample gas enters a spectrometer (161) of a detector (16) and is dispersed, and Raman-scattered light is subsequently detected by a CCD camera (162). A detection signal of the CCD camera (162) is inputted into a data processing device (18), and a Raman spectrum is obtained, and thus the concentration of argon and the concentration of nitrogen or oxygen included in the sample gas can be obtained by analysing the Raman spectrum.
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Inventors:
HATAHORI TAKAHIDE (JP)
Application Number:
PCT/JP2014/066018
Publication Date:
January 15, 2015
Filing Date:
June 17, 2014
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
G01N21/65
Foreign References:
| JP2000028528A | 2000-01-28 | |||
| JPH0954040A | 1997-02-25 | |||
| JPH10142153A | 1998-05-29 | |||
| JP2004325458A | 2004-11-18 | |||
| JP2005283073A | 2005-10-13 |
Attorney, Agent or Firm:
Kyoto International Patent Law Office (JP)
Patent business corporation Kyoto international patent firm (JP)
Patent business corporation Kyoto international patent firm (JP)
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