JPH032244U - - Google Patents
Info
- Publication number
- JPH032244U JPH032244U JP6118989U JP6118989U JPH032244U JP H032244 U JPH032244 U JP H032244U JP 6118989 U JP6118989 U JP 6118989U JP 6118989 U JP6118989 U JP 6118989U JP H032244 U JPH032244 U JP H032244U
- Authority
- JP
- Japan
- Prior art keywords
- detector
- comparison
- light source
- cell
- infrared
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
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
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図は本考案の一実施例に係る赤外線分析計
の構成図である。第２図はパルス点灯光源を駆動
するパルスの一例を示す波形図である。
１……セル、６……パルス点灯光源、９……測
定用検出器、１０……比較用検出器、１７……差
動増幅器、Ｐ……光源駆動パルス、Ｒ……比較用
検出器の出力、Ｋ……設定値。
FIG. 1 is a block diagram of an infrared analyzer according to an embodiment of the present invention. FIG. 2 is a waveform diagram showing an example of a pulse for driving a pulse lighting light source. 1...Cell, 6...Pulse lighting light source, 9...Measurement detector, 10...Comparison detector, 17...Differential amplifier, P...Light source driving pulse, R...Comparison detector Output, K...setting value.
Claims (1)
セル透過後の赤外光を測定用検出器と比較用検出
器とによつて検出するようにした赤外線分析計に
おいて、前記比較用検出器の出力を設定値と比較
し、この比較結果に基づいて光源駆動パルスのデ
ユーテイを変化させ、前記比較用検出器の出力が
常に所望の大きさになるように構成したことを特
徴とする赤外線分析計。 The cell is irradiated with infrared light from a pulsed light source,
In an infrared analyzer that detects infrared light after passing through a cell using a measurement detector and a comparison detector, the output of the comparison detector is compared with a set value, and based on the comparison result, An infrared analyzer characterized in that the duty of the light source driving pulse is changed so that the output of the comparison detector always has a desired magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6118989U JPH0623958Y2 (en) | 1989-05-27 | 1989-05-27 | Infrared analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6118989U JPH0623958Y2 (en) | 1989-05-27 | 1989-05-27 | Infrared analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH032244U true JPH032244U (en) | 1991-01-10 |
| JPH0623958Y2 JPH0623958Y2 (en) | 1994-06-22 |
Family
ID=31589219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6118989U Expired - Lifetime JPH0623958Y2 (en) | 1989-05-27 | 1989-05-27 | Infrared analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623958Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007099423A (en) * | 2005-10-03 | 2007-04-19 | Duplo Corp | Paper feeder |
| JP2010210251A (en) * | 2009-03-06 | 2010-09-24 | Yazaki Corp | Concentration measuring device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19925196C2 (en) * | 1999-05-26 | 2001-12-13 | Inst Chemo Biosensorik | Gas sensor arrangement |
| JP6608514B2 (en) * | 2017-12-22 | 2019-11-20 | 旭化成エレクトロニクス株式会社 | Optical density measuring device and control method of optical density measuring device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223633A (en) * | 1985-03-29 | 1986-10-04 | Yokogawa Electric Corp | Infrared gas analyzer |
-
1989
- 1989-05-27 JP JP6118989U patent/JPH0623958Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223633A (en) * | 1985-03-29 | 1986-10-04 | Yokogawa Electric Corp | Infrared gas analyzer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007099423A (en) * | 2005-10-03 | 2007-04-19 | Duplo Corp | Paper feeder |
| JP2010210251A (en) * | 2009-03-06 | 2010-09-24 | Yazaki Corp | Concentration measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0623958Y2 (en) | 1994-06-22 |