GB1165783A - Improvements in or relating to Liquid Level Indicators - Google Patents
Improvements in or relating to Liquid Level IndicatorsInfo
- Publication number
- GB1165783A GB1165783A GB1824867A GB1824867A GB1165783A GB 1165783 A GB1165783 A GB 1165783A GB 1824867 A GB1824867 A GB 1824867A GB 1824867 A GB1824867 A GB 1824867A GB 1165783 A GB1165783 A GB 1165783A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid level
- oscillator
- gate
- counter
- pulses
- 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
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
- G01C13/002—Measuring the movement of open water
- G01C13/004—Measuring the movement of open water vertical movement
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
Abstract
1,165,783. Liquid level detectors. ROSEMOUNT ENG. CO. Ltd. 16 April, 1968 [20 April, 1967], No. 18248/67. Heading G4H. A liquid level detector includes a plurality of sensors 11 positioned in the liquid, the outputs from which are converted to coded signals (preferably binary) on leads 13 which enable gates 14, 15, 16 . . . to which are fed non- coincident pulses at a rate in accordance with the weight of the coded signal 13 fed to that gate, the pulses being counted in a counter 41. In the embodiment described, an oscillator 20 supplies pulses to a binary divider chain 21, 22, 23 . . . each connected to an AND gate 14, 15, 16 . . . the parallel binary coded signals 13 being derived from a detector unit 12 connected to the sensors 11 which is preferably as in Specification 1,110,175, the outputs of the AND gates are fed via an OR gate 30 to the counter 41 which is preferably gated by a further counter pulsed by oscillator 20. The count may be displayed, recorded or punched on magnetic tape or transmitted by radio link to a remote point. The mains supply may be used in place of the oscillator.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1824867A GB1165783A (en) | 1967-04-20 | 1967-04-20 | Improvements in or relating to Liquid Level Indicators |
| DE19681773251 DE1773251B2 (en) | 1967-04-20 | 1968-04-19 | Measuring device for liquid levels |
| FR1570674D FR1570674A (en) | 1967-04-20 | 1968-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1824867A GB1165783A (en) | 1967-04-20 | 1967-04-20 | Improvements in or relating to Liquid Level Indicators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1165783A true GB1165783A (en) | 1969-10-01 |
Family
ID=10109208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1824867A Expired GB1165783A (en) | 1967-04-20 | 1967-04-20 | Improvements in or relating to Liquid Level Indicators |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1773251B2 (en) |
| FR (1) | FR1570674A (en) |
| GB (1) | GB1165783A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024979A (en) * | 2019-12-09 | 2020-04-17 | 河海大学 | Depth-measurable current meter |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5841028A (en) * | 1996-05-02 | 1998-11-24 | Chiron Corporation | Automated liquid-level vessel apparatus |
| CN114136396B (en) * | 2021-11-26 | 2024-04-12 | 江汉大学 | Logic control circuit and liquid level measuring device |
-
1967
- 1967-04-20 GB GB1824867A patent/GB1165783A/en not_active Expired
-
1968
- 1968-04-19 DE DE19681773251 patent/DE1773251B2/en active Granted
- 1968-04-19 FR FR1570674D patent/FR1570674A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024979A (en) * | 2019-12-09 | 2020-04-17 | 河海大学 | Depth-measurable current meter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1773251C3 (en) | 1974-09-19 |
| DE1773251A1 (en) | 1972-02-17 |
| FR1570674A (en) | 1969-06-13 |
| DE1773251B2 (en) | 1974-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |