GB1488104A - Thermal liquid level detector - Google Patents
Thermal liquid level detectorInfo
- Publication number
- GB1488104A GB1488104A GB3277/76A GB327776A GB1488104A GB 1488104 A GB1488104 A GB 1488104A GB 3277/76 A GB3277/76 A GB 3277/76A GB 327776 A GB327776 A GB 327776A GB 1488104 A GB1488104 A GB 1488104A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid level
- thermistor
- fed
- resistor
- 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
- G01F23/246—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 thermal devices
- G01F23/247—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 thermal devices 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/545,503 US3955416A (en) | 1975-01-30 | 1975-01-30 | Thermal liquid level detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1488104A true GB1488104A (en) | 1977-10-05 |
Family
ID=24176515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3277/76A Expired GB1488104A (en) | 1975-01-30 | 1976-01-28 | Thermal liquid level detector |
Country Status (6)
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2367276A1 (fr) * | 1976-10-06 | 1978-05-05 | Jaeger | Dispositif permettant le controle du niveau de liquide contenu dans un reservoir |
| LU82312A1 (fr) * | 1980-04-01 | 1981-12-02 | Arbed | Systeme de mesure des niveaux du bain de metal et de la scorie dans un creuset metallurgique qu cours-e l'affinage de la fonte brute |
| US4326199A (en) * | 1980-08-11 | 1982-04-20 | Texas Instruments Incorporated | Autoreferencing liquid level sensing apparatus and method |
| DE3201708C2 (de) * | 1982-01-21 | 1986-07-31 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Meßfühler zur Bestimmung der Standhöhe von flüssigen Gasen |
| US4583401A (en) * | 1982-11-30 | 1986-04-22 | Basf Aktiengesellschaft | Method and apparatus for measuring the level of liquids or agitated charges in vessels |
| US4630036A (en) * | 1983-01-26 | 1986-12-16 | Vernay Laboratories, Inc. | Early warning of marine cooling system failure |
| FR2552876B1 (fr) * | 1983-09-29 | 1985-10-25 | Commissariat Energie Atomique | Systeme thermique de mesure de niveau de liquide |
| US4774838A (en) * | 1986-03-03 | 1988-10-04 | Adwel Industries Limited | Liquid level indicating apparatus |
| US4890492A (en) * | 1988-09-06 | 1990-01-02 | Emhart Industries, Inc. | Differential pressure level sensor with temperature sensing elements |
| GB2231659B (en) * | 1989-05-12 | 1993-02-17 | British Aerospace | Measurement of mass of fluid in a container |
| US5434555A (en) * | 1993-05-17 | 1995-07-18 | Magnetrol International, Inc. | Thermal dispersion switch with self test circuit |
| JPH07199636A (ja) * | 1993-12-28 | 1995-08-04 | Fujitsu Ltd | トナーの残量検出装置 |
| DE4434559C2 (de) * | 1994-09-28 | 1999-09-02 | Mannesmann Vdo Ag | Verfahren und Anordnung zum Betrieb eines Füllstandssensors |
| EP1074390A1 (en) * | 1999-08-03 | 2001-02-07 | Domino Printing Sciences Plc | Liquid level sensor |
| US6536276B2 (en) * | 2001-02-27 | 2003-03-25 | Rosemont Aerospace Inc. | Apparatus and method to non-intrusively measure the level of liquid in a sealed container |
| US7181965B2 (en) * | 2004-12-20 | 2007-02-27 | International Business Machines Corporation | Self-heated liquid level sensor |
| US7596998B2 (en) * | 2006-07-19 | 2009-10-06 | Therm-O-Disc, Incorporated | Liquid level sensor using thick film substrate |
| US9593795B2 (en) | 2009-11-02 | 2017-03-14 | General Electric Technology Gmbh | Fuel head assembly with replaceable wear components |
| US8562091B2 (en) * | 2010-03-09 | 2013-10-22 | Xerox Corporation | Apparatus and method for detecting ink in a reservoir using an overdriven thermistor and an electrical conductor extending from the thermistor |
| US8789564B2 (en) * | 2011-01-21 | 2014-07-29 | Marathon Petroleum Company Lp | Asphalt loading arm |
| KR102225059B1 (ko) * | 2016-12-27 | 2021-03-09 | 가부시키가이샤 후지킨 | 액면계, 그것을 구비한 기화기, 및 액면 검지 방법 |
| US11814506B2 (en) | 2019-07-02 | 2023-11-14 | Marathon Petroleum Company Lp | Modified asphalts with enhanced rheological properties and associated methods |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE808290C (de) * | 1949-03-20 | 1951-07-12 | Basf Ag | Fluessigkeitsstandanzeiger |
| US2928037A (en) * | 1954-12-02 | 1960-03-08 | Avien Inc | Thermistor liquid level switch |
| DE1253473B (de) * | 1964-03-24 | 1967-11-02 | Siemens Ag | Einrichtung zur Bestimmung des Fluessigkeitspegels in einem Gefaess |
| US3324722A (en) * | 1964-12-23 | 1967-06-13 | Atomic Power Dev Ass Inc | Continuous fluid level measuring apparatus |
| JPS5216528B2 (US06589383-20030708-C00041.png) * | 1973-08-11 | 1977-05-10 | ||
| US3836882A (en) * | 1973-08-16 | 1974-09-17 | Gte Sylvania Inc | Temperature compensated fluid sensor device |
-
1975
- 1975-01-30 US US05/545,503 patent/US3955416A/en not_active Expired - Lifetime
-
1976
- 1976-01-23 DE DE19762602394 patent/DE2602394A1/de active Pending
- 1976-01-28 GB GB3277/76A patent/GB1488104A/en not_active Expired
- 1976-01-29 CA CA244,480A patent/CA1055137A/en not_active Expired
- 1976-01-29 JP JP51008850A patent/JPS51126176A/ja active Granted
- 1976-01-29 FR FR7602375A patent/FR2299630A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2299630A1 (fr) | 1976-08-27 |
| DE2602394A1 (de) | 1976-08-05 |
| US3955416A (en) | 1976-05-11 |
| JPS5529370B2 (US06589383-20030708-C00041.png) | 1980-08-02 |
| FR2299630B1 (US06589383-20030708-C00041.png) | 1979-07-20 |
| CA1055137A (en) | 1979-05-22 |
| JPS51126176A (en) | 1976-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |