FR1046452A - Device for the direct measurement of the attenuation of centimetric and UHF transmission circuits - Google Patents
Device for the direct measurement of the attenuation of centimetric and UHF transmission circuitsInfo
- Publication number
- FR1046452A FR1046452A FR1046452DA FR1046452A FR 1046452 A FR1046452 A FR 1046452A FR 1046452D A FR1046452D A FR 1046452DA FR 1046452 A FR1046452 A FR 1046452A
- Authority
- FR
- France
- Prior art keywords
- centimetric
- attenuation
- direct measurement
- transmission circuits
- uhf transmission
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
- G01R27/32—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response in circuits having distributed constants, e.g. having very long conductors or involving high frequencies
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
- G03C1/053—Polymers obtained by reactions involving only carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
- G03C1/835—Macromolecular substances therefor, e.g. mordants
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1051852A GB729924A (en) | 1952-04-25 | 1952-04-25 | Improvements in photographic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1046452A true FR1046452A (en) | 1953-12-07 |
Family
ID=9969301
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1046452D Expired FR1046452A (en) | 1952-04-25 | 1951-12-15 | Device for the direct measurement of the attenuation of centimetric and UHF transmission circuits |
FR1076452D Expired FR1076452A (en) | 1952-04-25 | 1953-04-25 | New products for photography |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1076452D Expired FR1076452A (en) | 1952-04-25 | 1953-04-25 | New products for photography |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE519492A (en) |
FR (2) | FR1046452A (en) |
GB (1) | GB729924A (en) |
-
0
- BE BE519492D patent/BE519492A/xx unknown
-
1951
- 1951-12-15 FR FR1046452D patent/FR1046452A/en not_active Expired
-
1952
- 1952-04-25 GB GB1051852A patent/GB729924A/en not_active Expired
-
1953
- 1953-04-25 FR FR1076452D patent/FR1076452A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1076452A (en) | 1954-10-27 |
BE519492A (en) | |
GB729924A (en) | 1955-05-11 |
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