IT963763B - Fotometro - Google Patents
FotometroInfo
- Publication number
- IT963763B IT963763B IT27913/72A IT2791372A IT963763B IT 963763 B IT963763 B IT 963763B IT 27913/72 A IT27913/72 A IT 27913/72A IT 2791372 A IT2791372 A IT 2791372A IT 963763 B IT963763 B IT 963763B
- Authority
- IT
- Italy
- Prior art keywords
- photometer
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
-
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Spectrometry And Color Measurement (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712140335 DE2140335C3 (de) | 1971-08-11 | Photometer |
Publications (1)
Publication Number | Publication Date |
---|---|
IT963763B true IT963763B (it) | 1974-01-21 |
Family
ID=5816504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT27913/72A IT963763B (it) | 1971-08-11 | 1972-08-04 | Fotometro |
Country Status (5)
Country | Link |
---|---|
US (1) | US3790290A (it) |
CH (1) | CH549206A (it) |
FR (1) | FR2148576B1 (it) |
GB (1) | GB1387607A (it) |
IT (1) | IT963763B (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2303040C3 (de) * | 1973-01-23 | 1978-03-30 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Optisches Meßgerät, insbesondere zur Rauchdichte- oder Sichtweitemessung |
FR2257900B1 (it) * | 1973-09-20 | 1976-05-14 | France Etat | |
FR2564209B1 (fr) * | 1984-05-10 | 1987-01-30 | Commissariat Energie Atomique | Systeme de detection optique a distance |
DE3624567A1 (de) * | 1986-07-21 | 1988-03-24 | Sick Optik Elektronik Erwin | Spektralanalytisches gasmessgeraet |
US5329350A (en) * | 1992-05-21 | 1994-07-12 | Photon, Inc. | Measuring laser beam parameters using non-distorting attenuation and multiple simultaneous samples |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3488122A (en) * | 1965-01-25 | 1970-01-06 | Oreal | Process for determining the spectral composition of luminous radiation diffused by a colored surface,and apparatus for carrying out said process |
-
1972
- 1972-08-03 US US00277615A patent/US3790290A/en not_active Expired - Lifetime
- 1972-08-03 CH CH1154372A patent/CH549206A/xx not_active IP Right Cessation
- 1972-08-04 IT IT27913/72A patent/IT963763B/it active
- 1972-08-09 FR FR7228791A patent/FR2148576B1/fr not_active Expired
- 1972-08-11 GB GB3756272A patent/GB1387607A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2148576B1 (it) | 1976-08-13 |
DE2140335A1 (de) | 1973-02-22 |
GB1387607A (en) | 1975-03-19 |
CH549206A (de) | 1974-05-15 |
FR2148576A1 (it) | 1973-03-23 |
US3790290A (en) | 1974-02-05 |
DE2140335B2 (de) | 1976-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT333623B (de) | Sportschuh | |
BE780107A (fr) | Garde-temps | |
AT335885B (de) | Sportschuh | |
BE781289A (fr) | Baggervaartuig | |
BE777856A (fr) | Cryocable | |
NL161580C (nl) | Fotometer. | |
AT329438B (de) | Lufthebeforderer | |
BE780405A (fr) | Fotografisch materiaal | |
BE777923A (fr) | Photometre multiple | |
AT325420B (de) | Koronagenerator | |
BE780668A (fr) | Documentbehandelingsstelsel | |
BE779073A (fr) | Bitumineuze emulsies | |
AT342779B (de) | Zahnpasten | |
BE778428A (fr) | Vatenklem | |
BE779891A (fr) | Balai laveur-essoreur | |
BE780088A (fr) | Cirkelhooier | |
AT328204B (de) | Zielfernrohr | |
IT963763B (it) | Fotometro | |
BE773645A (fr) | Ladenkast | |
BE780406A (fr) | Tabulatorponsmachine | |
BE777205R (fr) | Braguette | |
BE778507A (fr) | Beta-alcoylthio-aldehydes | |
AT327986B (de) | Schneefrase | |
BE780395A (fr) | Doorzichtige plaat | |
BE780015A (fr) | Ketel |