DE3330981A1 - Verfahren zur niveauerkennung von elektrisch leitfaehigen fluessigkeiten - Google Patents
Verfahren zur niveauerkennung von elektrisch leitfaehigen fluessigkeitenInfo
- Publication number
- DE3330981A1 DE3330981A1 DE19833330981 DE3330981A DE3330981A1 DE 3330981 A1 DE3330981 A1 DE 3330981A1 DE 19833330981 DE19833330981 DE 19833330981 DE 3330981 A DE3330981 A DE 3330981A DE 3330981 A1 DE3330981 A1 DE 3330981A1
- Authority
- DE
- Germany
- Prior art keywords
- electrode
- current
- voltage
- circuit
- insulation
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 title abstract 2
- 238000009413 insulation Methods 0.000 claims abstract description 20
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 230000010287 polarization Effects 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000007257 malfunction Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 abstract 2
- 239000012212 insulator Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- G01F23/24—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 variations of resistance of resistors due to contact with conductor fluid
- G01F23/241—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 variations of resistance of resistors due to contact with conductor fluid for discrete levels
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833330981 DE3330981C2 (de) | 1983-08-27 | 1983-08-27 | Verfahren zur Niveauerkennung von elektrisch leitfähigen Flüssigkeiten |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833330981 DE3330981C2 (de) | 1983-08-27 | 1983-08-27 | Verfahren zur Niveauerkennung von elektrisch leitfähigen Flüssigkeiten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3330981A1 true DE3330981A1 (de) | 1985-03-14 |
| DE3330981C2 DE3330981C2 (de) | 1987-01-08 |
Family
ID=6207624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19833330981 Expired DE3330981C2 (de) | 1983-08-27 | 1983-08-27 | Verfahren zur Niveauerkennung von elektrisch leitfähigen Flüssigkeiten |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3330981C2 (US07709020-20100504-C00041.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0404479A1 (en) * | 1989-06-20 | 1990-12-27 | Murata Manufacturing Co., Ltd. | Device for measuring displacement |
| EP0527435A1 (de) * | 1991-08-07 | 1993-02-17 | VEGA Grieshaber GmbH & Co. | Verfahren und Vorrichtung zur konduktiven Füllstand-Grenzwertmessung |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10215818A1 (de) * | 2002-04-10 | 2003-10-30 | Endress & Hauser Wetzer Gmbh | Vorrichtung zur Erkennung eines vorgegebenen Füllstands eines Mediums in einem Behälter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT84053B (de) * | 1919-05-13 | 1921-05-25 | Georg Bloch | Elecktrischer Fernmesser zur Ermittlung wechselnder Flüssigkeitshöhen. |
| DE564392C (de) * | 1930-01-08 | 1932-11-18 | Moffett Patent Rollenlager Ver | Elektrischer Wasserstandsanzeiger und Regler, bei dem der mit der Eintauchtiefe von Elektroden sich aendernde Fluessigkeitswiderstand zur Anzeige dient |
-
1983
- 1983-08-27 DE DE19833330981 patent/DE3330981C2/de not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT84053B (de) * | 1919-05-13 | 1921-05-25 | Georg Bloch | Elecktrischer Fernmesser zur Ermittlung wechselnder Flüssigkeitshöhen. |
| DE564392C (de) * | 1930-01-08 | 1932-11-18 | Moffett Patent Rollenlager Ver | Elektrischer Wasserstandsanzeiger und Regler, bei dem der mit der Eintauchtiefe von Elektroden sich aendernde Fluessigkeitswiderstand zur Anzeige dient |
Non-Patent Citations (1)
| Title |
|---|
| GESTRA Regelungstechnik-Niveau-Elektrode ER14, Ausgabe 3/76 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0404479A1 (en) * | 1989-06-20 | 1990-12-27 | Murata Manufacturing Co., Ltd. | Device for measuring displacement |
| EP0527435A1 (de) * | 1991-08-07 | 1993-02-17 | VEGA Grieshaber GmbH & Co. | Verfahren und Vorrichtung zur konduktiven Füllstand-Grenzwertmessung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3330981C2 (de) | 1987-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: GESTRA AG, 2800 BREMEN, DE |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |