FR724527A - Greyometric device - Google Patents
Greyometric deviceInfo
- Publication number
- FR724527A FR724527A FR724527DA FR724527A FR 724527 A FR724527 A FR 724527A FR 724527D A FR724527D A FR 724527DA FR 724527 A FR724527 A FR 724527A
- Authority
- FR
- France
- Prior art keywords
- greyometric
- greyometric 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR724527T | 1930-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR724527A true FR724527A (en) | 1932-04-28 |
Family
ID=9108958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR724527D Expired FR724527A (en) | 1930-12-22 | 1930-12-22 | Greyometric device |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR724527A (en) |
-
1930
- 1930-12-22 FR FR724527D patent/FR724527A/en not_active Expired
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