JPS5614138A - Infrared-ray spectroscopic analyzer - Google Patents
Infrared-ray spectroscopic analyzerInfo
- Publication number
- JPS5614138A JPS5614138A JP8966779A JP8966779A JPS5614138A JP S5614138 A JPS5614138 A JP S5614138A JP 8966779 A JP8966779 A JP 8966779A JP 8966779 A JP8966779 A JP 8966779A JP S5614138 A JPS5614138 A JP S5614138A
- Authority
- JP
- Japan
- Prior art keywords
- laser light
- optical path
- detector
- infrared
- entailing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To facilitate a supervision over laser light without entailing a loss of laser light, by providing a light polarizer, that can be inserted into and extracted from an optical path, at one part of the optical path between a semiconductor laser and infrared-ray detector. CONSTITUTION:To cause laser light before absorption to enter detector 7 for the measurement of the concentration of pollutional gas in the air, small plane mirror 9 is rotated to the position shown by dotted line 12 by about 135 deg., and consequently the laser light is reflected to the left as shown by dotted lines (d) and then focuses on the photodetection surface of detector 7. Since the optical path in this case is formed only in enclosure A, adsorption of the laser light up to photodetector 7 can perfectly be ignored and the output of detector 7 at this time corresponds to the power of the laser light before the adsorption. To make the laser light, projected out and reflected, to enter enclosure A again, small plane mirror 9 is only put off the optical path. Thus, a supervision over the laser light can be made easy without entailing a loss of the laser light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8966779A JPS5614138A (en) | 1979-07-13 | 1979-07-13 | Infrared-ray spectroscopic analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8966779A JPS5614138A (en) | 1979-07-13 | 1979-07-13 | Infrared-ray spectroscopic analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5614138A true JPS5614138A (en) | 1981-02-10 |
Family
ID=13977091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8966779A Pending JPS5614138A (en) | 1979-07-13 | 1979-07-13 | Infrared-ray spectroscopic analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5614138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS582638A (en) * | 1981-06-29 | 1983-01-08 | Fujitsu Ltd | Gas concentration detection method |
| KR20180017131A (en) * | 2015-06-11 | 2018-02-20 | 네오 모니터스 에이에스 | Gas monitor |
-
1979
- 1979-07-13 JP JP8966779A patent/JPS5614138A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS582638A (en) * | 1981-06-29 | 1983-01-08 | Fujitsu Ltd | Gas concentration detection method |
| JPH0247694B2 (en) * | 1981-06-29 | 1990-10-22 | Fujitsu Ltd | |
| KR20180017131A (en) * | 2015-06-11 | 2018-02-20 | 네오 모니터스 에이에스 | Gas monitor |
| JP2018521330A (en) * | 2015-06-11 | 2018-08-02 | ネオ モニターズ アクティーゼルスカブＮｅｏ Ｍｏｎｉｔｏｒｓ Ａｓ | Gas monitoring device |
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