SE468108B - Sensor foer maetning av laeget av en yta mellan tvaa medier med olika albedo - Google Patents
Sensor foer maetning av laeget av en yta mellan tvaa medier med olika albedoInfo
- Publication number
- SE468108B SE468108B SE9000370A SE9000370A SE468108B SE 468108 B SE468108 B SE 468108B SE 9000370 A SE9000370 A SE 9000370A SE 9000370 A SE9000370 A SE 9000370A SE 468108 B SE468108 B SE 468108B
- Authority
- SE
- Sweden
- Prior art keywords
- detectors
- sensor
- measuring
- accuracy
- sediment
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 5
- 239000013049 sediment Substances 0.000 claims abstract 4
- 238000005259 measurement Methods 0.000 claims abstract 3
- 230000003287 optical effect Effects 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims 3
- 125000006850 spacer group Chemical group 0.000 claims 2
- 230000001427 coherent effect Effects 0.000 claims 1
- 238000004590 computer program Methods 0.000 claims 1
- 239000012153 distilled water Substances 0.000 claims 1
- 238000011835 investigation Methods 0.000 abstract 1
- 239000004576 sand Substances 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Dispersion Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
Claims (1)
1/10 mm om n=5. För att fastställa ytans läge med den precisionen måste hänsyn tagas till gradienten av suspenderat material ovanför ytan, om den halten är hög, och det kan göras grafiskt eller med ett datorprogram. Delama till den elektronik som krävs är allmänt tillgängliga, och det krävs inga specialkunskaper för att bygga den. PATENTKRAV Sensor för mätning av läget av en yta mellan två medier med olika albedo, Lex. sediment och vatten, med hög noggrannhet och minimal störning av eventuell vattenströmning kännetecknar! därav, att en vertikal sekvens av separat avläsbara optiska reflexdetektorer, bakom ett genomskinligt distansmaterial, geometriskt så anordnats, an den aktiva mätytan på distansmaterialets utsida formar en sammanhängande yta, och att de från varje avläsningstillfälle erhållna mätvärdena å reflektiviteten vid varje optisk reflexdetektor, omvandlas från en analog till en digital signal med en upplösning bättri- än ett ensiffrigt binärt tal, varefter det exakta läget av den sökta diskontinuitetsytan fastställs med en noggrannhet som är bättre än avståndet mellan de individuella reflexdetektorerna.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9000370A SE468108B (sv) | 1990-02-02 | 1990-02-02 | Sensor foer maetning av laeget av en yta mellan tvaa medier med olika albedo |
NO91910392A NO910392L (no) | 1990-02-02 | 1991-02-01 | Sensor for maaling av overflatebeliggenhet. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9000370A SE468108B (sv) | 1990-02-02 | 1990-02-02 | Sensor foer maetning av laeget av en yta mellan tvaa medier med olika albedo |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9000370D0 SE9000370D0 (sv) | 1990-02-02 |
SE9000370L SE9000370L (sv) | 1991-08-03 |
SE468108B true SE468108B (sv) | 1992-11-02 |
Family
ID=20378436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9000370A SE468108B (sv) | 1990-02-02 | 1990-02-02 | Sensor foer maetning av laeget av en yta mellan tvaa medier med olika albedo |
Country Status (2)
Country | Link |
---|---|
NO (1) | NO910392L (sv) |
SE (1) | SE468108B (sv) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102507902B (zh) * | 2011-10-28 | 2014-06-18 | 广西红树林研究中心 | 湿地沉积速率测定装置 |
-
1990
- 1990-02-02 SE SE9000370A patent/SE468108B/sv not_active IP Right Cessation
-
1991
- 1991-02-01 NO NO91910392A patent/NO910392L/no unknown
Also Published As
Publication number | Publication date |
---|---|
NO910392D0 (no) | 1991-02-01 |
NO910392L (no) | 1991-08-05 |
SE9000370L (sv) | 1991-08-03 |
SE9000370D0 (sv) | 1990-02-02 |
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