FR950463A - Circuit antimicrophonique comportant des photo-cellules - Google Patents
Circuit antimicrophonique comportant des photo-cellulesInfo
- Publication number
- FR950463A FR950463A FR950463DA FR950463A FR 950463 A FR950463 A FR 950463A FR 950463D A FR950463D A FR 950463DA FR 950463 A FR950463 A FR 950463A
- Authority
- FR
- France
- Prior art keywords
- antimicrophonic
- photocells
- circuit
- antimicrophonic circuit
- 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
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US950463XA | 1939-05-05 | 1939-05-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR950463A true FR950463A (fr) | 1949-09-28 |
Family
ID=22248966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR950463D Expired FR950463A (fr) | 1939-05-05 | 1947-07-29 | Circuit antimicrophonique comportant des photo-cellules |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR950463A (fr) |
-
1947
- 1947-07-29 FR FR950463D patent/FR950463A/fr not_active Expired
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