NL7209950A - - Google Patents
Info
- Publication number
- NL7209950A NL7209950A NL7209950A NL7209950A NL7209950A NL 7209950 A NL7209950 A NL 7209950A NL 7209950 A NL7209950 A NL 7209950A NL 7209950 A NL7209950 A NL 7209950A NL 7209950 A NL7209950 A NL 7209950A
- Authority
- NL
- Netherlands
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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General 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)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20274271A | 1971-11-29 | 1971-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7209950A true NL7209950A (xx) | 1973-06-01 |
Family
ID=22751076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7209950A NL7209950A (xx) | 1971-11-29 | 1972-07-19 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3728031A (xx) |
| JP (1) | JPS5037552B2 (xx) |
| AU (1) | AU454106B2 (xx) |
| CA (1) | CA947109A (xx) |
| FR (1) | FR2161899A1 (xx) |
| GB (1) | GB1347827A (xx) |
| IT (1) | IT975460B (xx) |
| NL (1) | NL7209950A (xx) |
| SE (1) | SE382692B (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557818A (en) * | 1978-10-25 | 1980-04-30 | Ricoh Co Ltd | Photo scanner |
| US4475813A (en) * | 1982-08-30 | 1984-10-09 | Milton Roy Company | Divergent light optical systems for liquid chromatography |
| GB8309211D0 (en) * | 1983-04-05 | 1983-05-11 | Edinburgh Instr | Infra red absorption gas detectors |
| JPH06100538B2 (ja) * | 1989-08-02 | 1994-12-12 | 株式会社日立製作所 | 原子吸光分光光度計 |
| GB9314926D0 (en) * | 1993-07-19 | 1993-09-01 | Optiglass Ltd | Spectrophotometer cell |
| GB2403004B (en) * | 2003-06-19 | 2005-11-09 | Spectronic Devices Ltd | Optical detector apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137758A (en) * | 1960-03-16 | 1964-06-16 | Perkin Elmer Corp | Apparatus for spectrochemical analysis by the internal standard method |
| US3586441A (en) * | 1967-07-12 | 1971-06-22 | Instrumentation Labor Inc | Atomic absorption spectroanalysis system |
| US3591801A (en) * | 1968-03-21 | 1971-07-06 | Picker Corp | Double beam optical absorption photometer having sample and reference chambers positioned along a single optical axis |
| US3590255A (en) * | 1969-02-28 | 1971-06-29 | Instrumentation Labor Inc | Analysis system |
-
1971
- 1971-11-29 US US00202742A patent/US3728031A/en not_active Expired - Lifetime
-
1972
- 1972-06-20 CA CA145,234A patent/CA947109A/en not_active Expired
- 1972-06-23 AU AU43813/72A patent/AU454106B2/en not_active Expired
- 1972-07-05 GB GB3144172A patent/GB1347827A/en not_active Expired
- 1972-07-19 NL NL7209950A patent/NL7209950A/xx unknown
- 1972-09-13 FR FR7232412A patent/FR2161899A1/fr not_active Withdrawn
- 1972-09-20 JP JP47093739A patent/JPS5037552B2/ja not_active Expired
- 1972-11-06 IT IT7270471A patent/IT975460B/it active
- 1972-11-27 SE SE7215441A patent/SE382692B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE382692B (sv) | 1976-02-09 |
| IT975460B (it) | 1974-07-20 |
| CA947109A (en) | 1974-05-14 |
| AU4381372A (en) | 1974-01-03 |
| DE2258208B2 (de) | 1976-04-01 |
| DE2258208A1 (de) | 1973-06-07 |
| GB1347827A (en) | 1974-02-27 |
| FR2161899A1 (xx) | 1973-07-13 |
| JPS4863773A (xx) | 1973-09-04 |
| US3728031A (en) | 1973-04-17 |
| AU454106B2 (en) | 1974-10-17 |
| JPS5037552B2 (xx) | 1975-12-03 |