GB1419786A - Liquid depth measuring and indicating devices - Google Patents
Liquid depth measuring and indicating devicesInfo
- Publication number
- GB1419786A GB1419786A GB5644972A GB5644972A GB1419786A GB 1419786 A GB1419786 A GB 1419786A GB 5644972 A GB5644972 A GB 5644972A GB 5644972 A GB5644972 A GB 5644972A GB 1419786 A GB1419786 A GB 1419786A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid depth
- potentiometer
- capsule
- indication
- specific gravity
- 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
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0082—Transmitting or indicating the displacement of capsules by electric, electromechanical, magnetic, or electromechanical means
- G01L9/0085—Transmitting or indicating the displacement of capsules by electric, electromechanical, magnetic, or electromechanical means using variations in inductance
-
- 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
- G01F23/14—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 measurement of pressure
- G01F23/18—Indicating, recording or alarm devices actuated electrically
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/10—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in inductance, i.e. electric circuits therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
1419786 Measuring liquid level electrically KDG INSTRUMENTS Ltd 7 March 1974 [7 Dec 1972] 56449/72 Heading G1N An apparatus for producing an indication of liquid depth or volume includes a pressure transducer 16 having a capsule 13 and a differential transformer 21, 22, 23 with a movable core 17 coupled to the capsule and providing an electric signal to meter terminals through an output transistor VT5 of which the emitter connects through a potentiometer VR3 to an operational amplifier IC3, the potentiometer being calibrated directly in terms of specific gravity, whereby the circuit gain is varied so that the indication is adjusted for liquids of different specific gravity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5644972A GB1419786A (en) | 1972-12-07 | 1972-12-07 | Liquid depth measuring and indicating devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5644972A GB1419786A (en) | 1972-12-07 | 1972-12-07 | Liquid depth measuring and indicating devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1419786A true GB1419786A (en) | 1975-12-31 |
Family
ID=10476654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5644972A Expired GB1419786A (en) | 1972-12-07 | 1972-12-07 | Liquid depth measuring and indicating devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1419786A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428247A1 (en) * | 1978-06-06 | 1980-01-04 | Siemens Ag | PRESSURE MEASUREMENT CONVERTER |
EP0205229A1 (en) * | 1985-03-18 | 1986-12-17 | Eaton Corporation | Liquid depth measurement system |
-
1972
- 1972-12-07 GB GB5644972A patent/GB1419786A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428247A1 (en) * | 1978-06-06 | 1980-01-04 | Siemens Ag | PRESSURE MEASUREMENT CONVERTER |
EP0205229A1 (en) * | 1985-03-18 | 1986-12-17 | Eaton Corporation | Liquid depth measurement system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |