DE2120421C3 - Vorrichtung zur Messung und Überwachung der Konzentration einer Lösung - Google Patents
Vorrichtung zur Messung und Überwachung der Konzentration einer LösungInfo
- Publication number
- DE2120421C3 DE2120421C3 DE19712120421 DE2120421A DE2120421C3 DE 2120421 C3 DE2120421 C3 DE 2120421C3 DE 19712120421 DE19712120421 DE 19712120421 DE 2120421 A DE2120421 A DE 2120421A DE 2120421 C3 DE2120421 C3 DE 2120421C3
- Authority
- DE
- Germany
- Prior art keywords
- solution
- signal
- photocell
- light
- concentration
- 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
- 238000012544 monitoring process Methods 0.000 title claims description 8
- 238000010411 cooking Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000011161 development Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 2
- 238000009835 boiling Methods 0.000 claims 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 238000012806 monitoring device Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- 230000000007 visual effect Effects 0.000 claims 1
- 230000003313 weakening effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 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
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
Landscapes
- 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)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7023157A FR2094486A5 (enExample) | 1970-06-23 | 1970-06-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2120421A1 DE2120421A1 (de) | 1971-12-30 |
| DE2120421B2 DE2120421B2 (de) | 1973-08-16 |
| DE2120421C3 true DE2120421C3 (de) | 1974-03-28 |
Family
ID=9057639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712120421 Expired DE2120421C3 (de) | 1970-06-23 | 1971-04-26 | Vorrichtung zur Messung und Überwachung der Konzentration einer Lösung |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE2120421C3 (enExample) |
| ES (1) | ES389797A1 (enExample) |
| FR (1) | FR2094486A5 (enExample) |
| GB (1) | GB1308870A (enExample) |
| NL (1) | NL170332C (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2500930B1 (fr) * | 1980-11-14 | 1985-12-06 | Sopelem | Refractometre utilisant la methode de l'angle limite |
| FR2536537A1 (fr) * | 1982-11-22 | 1984-05-25 | Alexandre Laugier | Procede et refractometre pour mesurer l'indice de refraction d'un liquide et application a la mesure du titre alcoometrique en puissance d'un mout |
-
1970
- 1970-06-23 FR FR7023157A patent/FR2094486A5/fr not_active Expired
-
1971
- 1971-04-01 ES ES389797A patent/ES389797A1/es not_active Expired
- 1971-04-26 DE DE19712120421 patent/DE2120421C3/de not_active Expired
- 1971-04-28 NL NL7105765A patent/NL170332C/xx not_active IP Right Cessation
- 1971-06-23 GB GB2945471A patent/GB1308870A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES389797A1 (es) | 1973-06-01 |
| DE2120421A1 (de) | 1971-12-30 |
| DE2120421B2 (de) | 1973-08-16 |
| NL7105765A (enExample) | 1971-12-27 |
| NL170332B (nl) | 1982-05-17 |
| GB1308870A (en) | 1973-03-07 |
| NL170332C (nl) | 1982-10-18 |
| FR2094486A5 (enExample) | 1972-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |