NO154648C - SENSOR ELEMENT FOR CAPACITY LEVEL MEASUREMENT SYSTEM. - Google Patents

SENSOR ELEMENT FOR CAPACITY LEVEL MEASUREMENT SYSTEM.

Info

Publication number
NO154648C
NO154648C NO840812A NO840812A NO154648C NO 154648 C NO154648 C NO 154648C NO 840812 A NO840812 A NO 840812A NO 840812 A NO840812 A NO 840812A NO 154648 C NO154648 C NO 154648C
Authority
NO
Norway
Prior art keywords
sensor element
measurement system
level measurement
capacity level
capacity
Prior art date
Application number
NO840812A
Other languages
Norwegian (no)
Other versions
NO840812L (en
NO154648B (en
Inventor
Einar Gotaas
Original Assignee
Skand Instr As
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Skand Instr As filed Critical Skand Instr As
Priority to NO840812A priority Critical patent/NO154648C/en
Priority to PCT/NO1985/000012 priority patent/WO1985004008A1/en
Priority to EP19850901099 priority patent/EP0174333A1/en
Publication of NO840812L publication Critical patent/NO840812L/en
Publication of NO154648B publication Critical patent/NO154648B/en
Publication of NO154648C publication Critical patent/NO154648C/en

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
    • G01F23/26—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
    • G01F23/263—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 by measuring variations in capacitance of capacitors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Current Or Voltage (AREA)
NO840812A 1984-03-05 1984-03-05 SENSOR ELEMENT FOR CAPACITY LEVEL MEASUREMENT SYSTEM. NO154648C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO840812A NO154648C (en) 1984-03-05 1984-03-05 SENSOR ELEMENT FOR CAPACITY LEVEL MEASUREMENT SYSTEM.
PCT/NO1985/000012 WO1985004008A1 (en) 1984-03-05 1985-03-04 Sensing element for a capacitive level measuring system
EP19850901099 EP0174333A1 (en) 1984-03-05 1985-03-04 Sensing element for a capacitive level measuring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO840812A NO154648C (en) 1984-03-05 1984-03-05 SENSOR ELEMENT FOR CAPACITY LEVEL MEASUREMENT SYSTEM.

Publications (3)

Publication Number Publication Date
NO840812L NO840812L (en) 1985-09-06
NO154648B NO154648B (en) 1986-08-11
NO154648C true NO154648C (en) 1986-11-19

Family

ID=19887518

Family Applications (1)

Application Number Title Priority Date Filing Date
NO840812A NO154648C (en) 1984-03-05 1984-03-05 SENSOR ELEMENT FOR CAPACITY LEVEL MEASUREMENT SYSTEM.

Country Status (3)

Country Link
EP (1) EP0174333A1 (en)
NO (1) NO154648C (en)
WO (1) WO1985004008A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131582A1 (en) * 1991-09-23 1993-03-25 Elektro Merseburg Gmbh I G Capacitive level measurement device for liquids or bulk material - uses measurement-, screening- and base-electrodes with intermediate insulation, and operates as capacitive potential divider
EP1677085A3 (en) * 2004-12-31 2007-08-01 Moonhaven LLC Capacitive level sensor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1318512A (en) * 1969-03-12 1973-05-31 Greater London Council Apparatus for detecting changes in the level of a pourable material
US3706980A (en) * 1970-04-27 1972-12-19 Drexelbrook Controls Rf system for measuring the level of materials
FR2129245A5 (en) * 1971-03-19 1972-10-27 Pennaneach Marcelle
US4064753A (en) * 1974-12-12 1977-12-27 Drexelbrook Controls, Inc. RF admittance measuring method and apparatus for determining the level of a conductive liquid
US4122718A (en) * 1975-07-16 1978-10-31 Gustafson Reuben V Liquid level sensor
US4242573A (en) * 1979-01-24 1980-12-30 Raychem Corporation Water immersible heater
US4301681A (en) * 1979-09-06 1981-11-24 Drexelbrook Controls, Inc. Method of using capacitor probe with a semiconductive electrode
US4412270A (en) * 1981-06-25 1983-10-25 Simmonds Precision Products, Inc. Electrode assembly for a capacitance type probe

Also Published As

Publication number Publication date
NO840812L (en) 1985-09-06
NO154648B (en) 1986-08-11
EP0174333A1 (en) 1986-03-19
WO1985004008A1 (en) 1985-09-12

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