JPS5537909A - Light acoustic analyzer - Google Patents
Light acoustic analyzerInfo
- Publication number
- JPS5537909A JPS5537909A JP11051478A JP11051478A JPS5537909A JP S5537909 A JPS5537909 A JP S5537909A JP 11051478 A JP11051478 A JP 11051478A JP 11051478 A JP11051478 A JP 11051478A JP S5537909 A JPS5537909 A JP S5537909A
- Authority
- JP
- Japan
- Prior art keywords
- sample
- magnetic field
- light
- chamber
- generating device
- 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
- G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
Landscapes
- Physics & Mathematics (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 Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To determine the dependency of the magnetic field in the absorption of light of the sample by connecting the sample chamber and the base chamber by a gas passage in which the thermal type flow detecting element is incorporated, incorporating a magnetic field generating device in the sample chamber and impressing the magnetic field on the sample. CONSTITUTION:The sample chamber 3 of the detector A is connected to the base chamber 4 through the gas passage 5 and at the outlet side of the passage 5, the thermal flow meter type detecting element 13 is disposed. In the sample chamber 13, the sample stand 8 is mounted and at the large opening portion thereof 9a, the electromagnetic coil 10 of the magnetic field generating device E is arranged. The sample 2 is disposed on the sample stand 8 and the homogeneous light is illuminated as an intermittent light of a constant frequency through the light transmission window 6 by the light chopper B. The flow of gas due to the thermal expansion of the ambient gas by the sample 2 is detected by the detecting element 13 and it is fed to the operation amplifier C as an electric signal a indicating the acoustic effect. It is operation processed together with the signal b indicating the wave length and the strength of the light flux emitted from the light chopper B and fed to the indication recorder D. The strength of the magnetic field set by the coil 10 of the magnetic field generating device E is applied to the indication recorder D as a signal e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11051478A JPS5537909A (en) | 1978-09-08 | 1978-09-08 | Light acoustic analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11051478A JPS5537909A (en) | 1978-09-08 | 1978-09-08 | Light acoustic analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5537909A true JPS5537909A (en) | 1980-03-17 |
Family
ID=14537713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11051478A Pending JPS5537909A (en) | 1978-09-08 | 1978-09-08 | Light acoustic analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5537909A (en) |
-
1978
- 1978-09-08 JP JP11051478A patent/JPS5537909A/en active Pending
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