DD109444A1 - - Google Patents
Info
- Publication number
- DD109444A1 DD109444A1 DD17634874A DD17634874A DD109444A1 DD 109444 A1 DD109444 A1 DD 109444A1 DD 17634874 A DD17634874 A DD 17634874A DD 17634874 A DD17634874 A DD 17634874A DD 109444 A1 DD109444 A1 DD 109444A1
- Authority
- DD
- German Democratic Republic
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
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (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)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD17634874A DD109444A1 (en) | 1974-02-04 | 1974-02-04 | |
| DE19742457411 DE2457411A1 (en) | 1974-02-04 | 1974-12-05 | Temperature compensation for infra red gas analysers - involves temperature dependent resistor producing signal which compensates for gas temperature changes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD17634874A DD109444A1 (en) | 1974-02-04 | 1974-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD109444A1 true DD109444A1 (en) | 1974-11-05 |
Family
ID=5494504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD17634874A DD109444A1 (en) | 1974-02-04 | 1974-02-04 |
Country Status (2)
| Country | Link |
|---|---|
| DD (1) | DD109444A1 (en) |
| DE (1) | DE2457411A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076743B (en) * | 2022-01-19 | 2022-05-17 | 杭州春来科技有限公司 | Temperature compensation method and system based on NDIR (non-dispersive infra-red) gas sensor and computer readable storage medium |
-
1974
- 1974-02-04 DD DD17634874A patent/DD109444A1/xx unknown
- 1974-12-05 DE DE19742457411 patent/DE2457411A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2457411A1 (en) | 1975-08-07 |