CH491432A - Device for level control in vessels using light barriers or magnetic displacement sensors - Google Patents
Device for level control in vessels using light barriers or magnetic displacement sensorsInfo
- Publication number
- CH491432A CH491432A CH1557669A CH1557669A CH491432A CH 491432 A CH491432 A CH 491432A CH 1557669 A CH1557669 A CH 1557669A CH 1557669 A CH1557669 A CH 1557669A CH 491432 A CH491432 A CH 491432A
- Authority
- CH
- Switzerland
- Prior art keywords
- vessels
- level control
- displacement sensors
- light barriers
- magnetic displacement
- Prior art date
Links
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
- G01F23/30—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 floats
- G01F23/64—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 floats of the free float type without mechanical transmission elements
-
- 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
- G01F23/30—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 floats
- G01F23/64—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 floats of the free float type without mechanical transmission elements
- G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means
- G01F23/70—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means for sensing changes in level only at discrete points
- G01F23/706—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means for sensing changes in level only at discrete points using opto-electrically actuated indicating means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Soft Magnetic Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19686803603 DE6803603U (en) | 1968-10-24 | 1968-10-24 | GUIDED GLASS FLOAT WITH METAL STRIP FOR SWITCHING AND REGULATING THROUGH PHOTOCELLS AND MAGNETIC POSITION SENSORS |
Publications (1)
Publication Number | Publication Date |
---|---|
CH491432A true CH491432A (en) | 1970-05-31 |
Family
ID=6595171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1557669A CH491432A (en) | 1968-10-24 | 1969-10-16 | Device for level control in vessels using light barriers or magnetic displacement sensors |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH491432A (en) |
DE (1) | DE6803603U (en) |
FR (1) | FR2021431A1 (en) |
GB (1) | GB1280217A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2587813A1 (en) * | 1985-09-25 | 1987-03-27 | Pernin Const Meca | Level-adjusting device for a liquid container |
-
1968
- 1968-10-24 DE DE19686803603 patent/DE6803603U/en not_active Expired
-
1969
- 1969-10-01 FR FR6933559A patent/FR2021431A1/fr not_active Withdrawn
- 1969-10-13 GB GB5009569A patent/GB1280217A/en not_active Expired
- 1969-10-16 CH CH1557669A patent/CH491432A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2587813A1 (en) * | 1985-09-25 | 1987-03-27 | Pernin Const Meca | Level-adjusting device for a liquid container |
Also Published As
Publication number | Publication date |
---|---|
GB1280217A (en) | 1972-07-05 |
DE6803603U (en) | 1969-02-20 |
FR2021431A1 (en) | 1970-07-24 |
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