GB963488A - Apparatus for continuous analysis of solutions and gases - Google Patents
Apparatus for continuous analysis of solutions and gasesInfo
- Publication number
- GB963488A GB963488A GB4404860A GB4404860A GB963488A GB 963488 A GB963488 A GB 963488A GB 4404860 A GB4404860 A GB 4404860A GB 4404860 A GB4404860 A GB 4404860A GB 963488 A GB963488 A GB 963488A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polarisers
- outputs
- motor
- photomultiplier
- transmissivity
- 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
- 239000007789 gas Substances 0.000 title 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 5
- 239000010452 phosphate Substances 0.000 abstract 5
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 239000003086 colorant Substances 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- XOSXWYQMOYSSKB-LDKJGXKFSA-L water blue Chemical compound CC1=CC(/C(\C(C=C2)=CC=C2NC(C=C2)=CC=C2S([O-])(=O)=O)=C(\C=C2)/C=C/C\2=N\C(C=C2)=CC=C2S([O-])(=O)=O)=CC(S(O)(=O)=O)=C1N.[Na+].[Na+] XOSXWYQMOYSSKB-LDKJGXKFSA-L 0.000 abstract 1
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
- G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
- G01J1/22—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means
- G01J1/24—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors
-
- 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
- G01N21/21—Polarisation-affecting properties
-
- 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
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
963,488. Photo-electric measurement of transmissivity. HAGAN CONTROLS Ltd. Dec. 22, 1960 [Dec. 23, 1959], No.44048/60. Heading G1A. Apparatus for measuring the transmissivity of a fluid comprises a lamp shining through a sample on to a first photosensitive device and through polarisers on to a second photosensitive device and means responsive to the outputs of said devices to adjust the polarisers relatively to equalise the outputs. Boiler water is tested for phosphate (PO4) by passing it through a chamber 19 and adding a reagent which colours the water blue to a shade dependent upon the PO4 content at a rate proportional to the rate of flow. Light from a lamp 26 passes through chamber 19 to a photomultiplier PC2 and through polarisers 31, 30 to a photomultiplier PC1. The outputs of photomultipliers PC1 and PC2 are applied to the grids of triodes 40, 41 and any difference between the voltages E1 and E2 is made alternating by a vibrator 60 and energizes a motor 33 which adjusts the angle of polariser 31. The PO4 concentration is indicated on a meter 72 energized from a potentiometer 71 coupled to motor 31. Motor 31 may control the PO4 feed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86158959A | 1959-12-23 | 1959-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB963488A true GB963488A (en) | 1964-07-08 |
Family
ID=25336212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4404860A Expired GB963488A (en) | 1959-12-23 | 1960-12-22 | Apparatus for continuous analysis of solutions and gases |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH367649A (en) |
| GB (1) | GB963488A (en) |
| LU (1) | LU39673A1 (en) |
| NL (1) | NL259414A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022765A (en) * | 1987-10-23 | 1991-06-11 | International Business Machines Corporation | Nulling optical bridge for contactless measurement of changes in reflectivity and/or transmissivity |
-
0
- NL NL259414D patent/NL259414A/xx unknown
-
1960
- 1960-12-22 GB GB4404860A patent/GB963488A/en not_active Expired
- 1960-12-23 CH CH1434260A patent/CH367649A/en unknown
-
1961
- 1961-01-20 LU LU39673D patent/LU39673A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LU39673A1 (en) | 1961-03-20 |
| NL259414A (en) | |
| CH367649A (en) | 1963-02-28 |
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