IT1055427B - Percettore del livello di un liq ido - Google Patents
Percettore del livello di un liq idoInfo
- Publication number
- IT1055427B IT1055427B IT7620447A IT2044776A IT1055427B IT 1055427 B IT1055427 B IT 1055427B IT 7620447 A IT7620447 A IT 7620447A IT 2044776 A IT2044776 A IT 2044776A IT 1055427 B IT1055427 B IT 1055427B
- Authority
- IT
- Italy
- Prior art keywords
- perceptor
- ido
- liq
- level
- liq ido
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
-
- 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
- G01F23/72—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 magnetically actuated indicating means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/552,827 US3946177A (en) | 1975-02-25 | 1975-02-25 | Liquid-level sensor utilizing ferromagnetic fluid |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1055427B true IT1055427B (it) | 1981-12-21 |
Family
ID=24206972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT7620447A IT1055427B (it) | 1975-02-25 | 1976-02-23 | Percettore del livello di un liq ido |
Country Status (7)
Country | Link |
---|---|
US (1) | US3946177A (it) |
JP (1) | JPS51107861A (it) |
CA (1) | CA1049285A (it) |
DE (1) | DE2601279C3 (it) |
FR (1) | FR2302509A1 (it) |
GB (1) | GB1495866A (it) |
IT (1) | IT1055427B (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059227A (en) * | 1976-05-17 | 1977-11-22 | The Toro Company | Moisture sensing apparatus and method |
US4052901A (en) * | 1976-07-29 | 1977-10-11 | Bjork Albion P | Level detecting |
CH644950A5 (de) * | 1980-07-25 | 1984-08-31 | Weka Ag | Fluessigkeitsstandanzeiger. |
FR2543676A1 (fr) * | 1983-04-01 | 1984-10-05 | Petrole Service | Appareil indicateur de la position d'un objet mobile, notamment du niveau d'un liquide |
NO321266B1 (no) * | 2001-11-19 | 2006-04-10 | Autosensor As | Anordning ved nivamaling |
US7061352B2 (en) * | 2004-01-26 | 2006-06-13 | Tzo-Ing Lin | Noise-free low-power consumption wide voltage range DC and AC contactor and remote telephone control system using the same |
US20100164303A1 (en) * | 2008-12-31 | 2010-07-01 | Schlumberger Technology Corporation | Submersible motor with ferrofluid gap |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3555221A (en) * | 1968-10-14 | 1971-01-12 | Jack J Booth | Purging liquid supply sensor |
US3839904A (en) * | 1972-09-18 | 1974-10-08 | Us Army | Magnetic fluid level detector and vibration transducer |
US3826139A (en) * | 1973-03-19 | 1974-07-30 | Laval Turbine | Liquid level indicating apparatus |
-
1975
- 1975-02-25 US US05/552,827 patent/US3946177A/en not_active Expired - Lifetime
- 1975-10-20 CA CA237,964A patent/CA1049285A/en not_active Expired
-
1976
- 1976-01-12 GB GB1027/76A patent/GB1495866A/en not_active Expired
- 1976-01-15 DE DE2601279A patent/DE2601279C3/de not_active Expired
- 1976-01-23 FR FR7601770A patent/FR2302509A1/fr not_active Withdrawn
- 1976-02-12 JP JP51013309A patent/JPS51107861A/ja active Pending
- 1976-02-23 IT IT7620447A patent/IT1055427B/it active
Also Published As
Publication number | Publication date |
---|---|
CA1049285A (en) | 1979-02-27 |
DE2601279A1 (de) | 1976-09-02 |
DE2601279C3 (de) | 1979-01-04 |
FR2302509A1 (fr) | 1976-09-24 |
JPS51107861A (en) | 1976-09-24 |
GB1495866A (en) | 1977-12-21 |
US3946177A (en) | 1976-03-23 |
DE2601279B2 (de) | 1978-04-06 |
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