GB1049378A – Photo-electric turbidimeter
– Google Patents
GB1049378A – Photo-electric turbidimeter
– Google Patents
Photo-electric turbidimeter
Info
Publication number
GB1049378A
GB1049378A
GB3999862A
GB3999862A
GB1049378A
GB 1049378 A
GB1049378 A
GB 1049378A
GB 3999862 A
GB3999862 A
GB 3999862A
GB 3999862 A
GB3999862 A
GB 3999862A
GB 1049378 A
GB1049378 A
GB 1049378A
Authority
GB
United Kingdom
Prior art keywords
turbidometer
fed
photo
sample
oct
Prior art date
1962-10-23
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
Application number
GB3999862A
Inventor
Kenneth Arthur Sherwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisons Fertilizers Ltd
Fisons Ltd
Original Assignee
Fisons Fertilizers Ltd
Fisons Ltd
Priority date (The priority date 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 date listed.)
1965-01-29
Filing date
1962-10-23
Publication date
1966-11-23
1962-10-23
Application filed by Fisons Fertilizers Ltd, Fisons Ltd
filed
Critical
Fisons Fertilizers Ltd
1966-11-23
Publication of GB1049378A
publication
Critical
patent/GB1049378A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
NBIIXXVUZAFLBC-UHFFFAOYSA-N
Phosphoric acid
Chemical compound
OP(O)(O)=O
NBIIXXVUZAFLBC-UHFFFAOYSA-N
0.000
abstract
2
QAOWNCQODCNURD-UHFFFAOYSA-L
Sulfate
Chemical compound
[O-]S([O-])(=O)=O
QAOWNCQODCNURD-UHFFFAOYSA-L
0.000
abstract
2
239000000523
sample
Substances
0.000
abstract
2
229910021653
sulphate ion
Inorganic materials
0.000
abstract
2
QAOWNCQODCNURD-UHFFFAOYSA-N
Sulfuric acid
Chemical compound
OS(O)(=O)=O
QAOWNCQODCNURD-UHFFFAOYSA-N
0.000
abstract
1
239000002253
acid
Substances
0.000
abstract
1
229910000147
aluminium phosphate
Inorganic materials
0.000
abstract
1
WDIHJSXYQDMJHN-UHFFFAOYSA-L
barium chloride
Chemical compound
[Cl-].[Cl-].[Ba+2]
WDIHJSXYQDMJHN-UHFFFAOYSA-L
0.000
abstract
1
229910001626
barium chloride
Inorganic materials
0.000
abstract
1
239000012470
diluted sample
Substances
0.000
abstract
1
238000007865
diluting
Methods
0.000
abstract
1
239000003337
fertilizer
Substances
0.000
abstract
1
238000005259
measurement
Methods
0.000
abstract
1
238000000034
method
Methods
0.000
abstract
1
239000000203
mixture
Substances
0.000
abstract
1
239000002367
phosphate rock
Substances
0.000
abstract
1
239000001117
sulphuric acid
Substances
0.000
abstract
1
235000011149
sulphuric acid
Nutrition
0.000
abstract
1
XLYOFNOQVPJJNP-UHFFFAOYSA-N
water
Substances
O
XLYOFNOQVPJJNP-UHFFFAOYSA-N
0.000
abstract
1
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
G01N21/17—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
G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
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
G01J1/28—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 variation of intensity or distance of source
G01J1/30—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 variation of intensity or distance of source 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
G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
G01N21/274—Calibration, base line adjustment, drift correction
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
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
G01N21/82—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 precipitate or turbidity
Abstract
1,049,378. Automatic control. FISONS FERTILIZERS Ltd. Oct. 15, 1963 [Oct. 23, 1962], No. 39998/62. Heading G3R. [Also in Division G1] In an arrangement for the automatic control of the sulphate ion concentration in the reaction of sulphuric acid with phosphate rock to produce phosphoric acid, a filtered sample from the reaction vessel is fed over line 36 to a two stage diluting system. From this a measured quantity of diluted sample can be fed to mixing chamber 86 together with a measured amount of barium chloride solution on operation of the inlet valves. The mixture is stirred and then fed to the measuring cell 3 of a photo-electric turbidometer. This turbidometer may include a process timer providing a period during which the zero level of light falling on the photo-sensitive element through cell 3 when either empty or filled with water is set prior to measurement on a sample. The electrical output of the turbidometer is fed to controller 111 operating valve 113 pneumatically to control the acid flow to the reaction vessel. Programme device 45 controls the operation of the valves and turbidometer to direct successive samples to the test cell and automatically maintain the required sulphate ion concentration.
GB3999862A
1965-01-29
1962-10-23
Photo-electric turbidimeter
Expired
GB1049378A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
NL6501157A
NL6501157A
(en)
1965-01-29
1965-01-29
Publications (1)
Publication Number
Publication Date
GB1049378A
true
GB1049378A
(en)
1966-11-23
Family
ID=19792221
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3999862A
Expired
GB1049378A
(en)
1965-01-29
1962-10-23
Photo-electric turbidimeter
Country Status (2)
Country
Link
GB
(1)
GB1049378A
(en)
NL
(1)
NL6501157A
(en)
1962
1962-10-23
GB
GB3999862A
patent/GB1049378A/en
not_active
Expired
1965
1965-01-29
NL
NL6501157A
patent/NL6501157A/xx
unknown
Also Published As
Publication number
Publication date
NL6501157A
(en)
1966-08-01
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