CH479860A - Dispositif de mesure des variations d'une grandeur physique par l'intermédiaire d'un élément détecteur dont l'impédance varie en fonction de la grandeur à mesurer - Google Patents

Dispositif de mesure des variations d'une grandeur physique par l'intermédiaire d'un élément détecteur dont l'impédance varie en fonction de la grandeur à mesurer

Info

Publication number
CH479860A
CH479860A CH694767A CH694767A CH479860A CH 479860 A CH479860 A CH 479860A CH 694767 A CH694767 A CH 694767A CH 694767 A CH694767 A CH 694767A CH 479860 A CH479860 A CH 479860A
Authority
CH
Switzerland
Prior art keywords
measured
varies according
detector element
element whose
whose impedance
Prior art date
Application number
CH694767A
Other languages
English (en)
Inventor
Vieira David Da Costa
Original Assignee
Commissariat Energie Atomique
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 Commissariat Energie Atomique filed Critical Commissariat Energie Atomique
Publication of CH479860A publication Critical patent/CH479860A/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G08C19/10—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage using variable capacitance
    • 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
    • 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
    • G01F23/265—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 for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Level Indicators Using A Float (AREA)
CH694767A 1966-05-31 1967-05-16 Dispositif de mesure des variations d'une grandeur physique par l'intermédiaire d'un élément détecteur dont l'impédance varie en fonction de la grandeur à mesurer CH479860A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR63527A FR1498357A (fr) 1966-05-31 1966-05-31 Dispositif détecteur à impédance variable et son application à un appareil de surveillance, à distance, du niveau de l'huile d'un réséroir

Publications (1)

Publication Number Publication Date
CH479860A true CH479860A (fr) 1969-10-15

Family

ID=8609777

Family Applications (1)

Application Number Title Priority Date Filing Date
CH694767A CH479860A (fr) 1966-05-31 1967-05-16 Dispositif de mesure des variations d'une grandeur physique par l'intermédiaire d'un élément détecteur dont l'impédance varie en fonction de la grandeur à mesurer

Country Status (8)

Country Link
US (1) US3478586A (fr)
BE (1) BE698455A (fr)
CH (1) CH479860A (fr)
ES (1) ES341202A1 (fr)
FR (1) FR1498357A (fr)
GB (1) GB1151798A (fr)
LU (1) LU53750A1 (fr)
NL (1) NL6707416A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220780B1 (fr) * 1973-03-07 1976-04-30 Polischuk Konstantin
JPS5770121U (fr) * 1980-10-16 1982-04-27
CN112660170A (zh) * 2020-08-28 2021-04-16 青岛四机宏达工贸有限公司 轨道交通车辆post自控系统
CN118758396B (zh) * 2024-09-05 2024-12-31 四川泛华航空仪表电器有限公司 一种变径式油量传感器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622442A (en) * 1949-06-10 1952-12-23 Phillips Petroleum Co Apparatus for measuring liquid levels
US2866336A (en) * 1953-07-06 1958-12-30 Little Inc A Liquid level gage

Also Published As

Publication number Publication date
US3478586A (en) 1969-11-18
ES341202A1 (es) 1968-06-16
LU53750A1 (fr) 1967-07-25
DE1623665A1 (de) 1971-07-29
NL6707416A (fr) 1967-12-01
GB1151798A (en) 1969-05-14
BE698455A (fr) 1967-10-16
DE1623665B2 (de) 1973-01-04
FR1498357A (fr) 1967-10-20

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Legal Events

Date Code Title Description
PL Patent ceased