AU2663684A - Level indicator - Google Patents
Level indicatorInfo
- Publication number
- AU2663684A AU2663684A AU26636/84A AU2663684A AU2663684A AU 2663684 A AU2663684 A AU 2663684A AU 26636/84 A AU26636/84 A AU 26636/84A AU 2663684 A AU2663684 A AU 2663684A AU 2663684 A AU2663684 A AU 2663684A
- Authority
- AU
- Australia
- Prior art keywords
- level indicator
- indicator
- level
- 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.)
- Abandoned
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
- G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
- G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
- G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels
-
- 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
- G01F23/26—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/261—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields for discrete levels
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833314872 DE3314872A1 (en) | 1983-04-25 | 1983-04-25 | DEVICE FOR DETECTING THE LEVEL AT THE SITE OF A SENSOR |
| DE3314872 | 1983-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2663684A true AU2663684A (en) | 1984-11-01 |
Family
ID=6197273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU26636/84A Abandoned AU2663684A (en) | 1983-04-25 | 1984-04-09 | Level indicator |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0123189B1 (en) |
| AU (1) | AU2663684A (en) |
| DE (1) | DE3314872A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3810670C2 (en) * | 1988-03-29 | 1998-11-26 | Siemens Ag | Device for level monitoring |
| DE3810669C2 (en) * | 1988-03-29 | 1998-10-29 | Siemens Ag | Device for monitoring the level of a liquid |
| GB9408176D0 (en) * | 1994-04-25 | 1994-06-15 | Interface Devices Distribution | Fluid level detectors |
| DE10203461A1 (en) | 2002-01-28 | 2003-08-14 | Grieshaber Vega Kg | Vibration level sensor |
| DE102009026685A1 (en) * | 2009-06-03 | 2010-12-09 | Endress + Hauser Gmbh + Co. Kg | Method for determining or monitoring a predetermined level, a phase limit or the density of a medium |
| DE102012102589A1 (en) * | 2012-03-26 | 2013-09-26 | Endress + Hauser Gmbh + Co. Kg | Device for monitoring a predetermined level |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1512233A (en) * | 1974-03-20 | 1978-05-24 | Matsushita Electric Industrial Co Ltd | Piezoelectric presence sensitive apparatus |
| GB1473840A (en) * | 1974-06-26 | 1977-05-18 | Atomic Energy Authority Uk | Apparatus for indicating change in acoustic properties of a medium |
| DE2631061A1 (en) * | 1975-07-11 | 1977-01-27 | Mallory & Co Inc P R | Automatic fluid level monitor for engine oil - eliminates dip stick using piezoelectric resonator controlling oscillator circuit |
| DE3005851A1 (en) * | 1980-02-16 | 1981-09-03 | Gustav F. Gerdts GmbH & Co KG, 2800 Bremen | Liq. level monitoring based on relative transmissivity - using ultrasonic transmitter and receiver of varying sweeping frequency and measuring resonances |
| DE3044353C2 (en) * | 1980-11-25 | 1986-01-09 | Endress U. Hauser Gmbh U. Co, 7867 Maulburg | Device for determining when a predetermined fill level has been reached in a container |
-
1983
- 1983-04-25 DE DE19833314872 patent/DE3314872A1/en not_active Withdrawn
-
1984
- 1984-04-07 EP EP19840103893 patent/EP0123189B1/en not_active Expired
- 1984-04-09 AU AU26636/84A patent/AU2663684A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE3314872A1 (en) | 1984-10-25 |
| EP0123189A1 (en) | 1984-10-31 |
| EP0123189B1 (en) | 1987-09-09 |
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