FR2383436B1 - - Google Patents

Info

Publication number
FR2383436B1
FR2383436B1 FR7807076A FR7807076A FR2383436B1 FR 2383436 B1 FR2383436 B1 FR 2383436B1 FR 7807076 A FR7807076 A FR 7807076A FR 7807076 A FR7807076 A FR 7807076A FR 2383436 B1 FR2383436 B1 FR 2383436B1
Authority
FR
France
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
Application number
FR7807076A
Other languages
French (fr)
Other versions
FR2383436A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HELIOS AG
Original Assignee
HELIOS AG
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 HELIOS AG filed Critical HELIOS AG
Publication of FR2383436A1 publication Critical patent/FR2383436A1/fr
Application granted granted Critical
Publication of FR2383436B1 publication Critical patent/FR2383436B1/fr
Granted legal-status Critical Current

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
    • G01F23/266—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 measuring circuits therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/96071—Capacitive touch switches characterised by the detection principle
    • H03K2217/96072—Phase comparison, i.e. where a phase comparator receives at one input the signal directly from the oscillator, at a second input the same signal but delayed, with a delay depending on a sensing capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
FR7807076A 1977-03-11 1978-03-10 Procede et dispositif pour surveiller ou mesurer le niveau d'un fluide au moyen de la capacite d'une sonde de mesure plongee dans le fluide Granted FR2383436A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH306077A CH610658A5 (en) 1977-03-11 1977-03-11 Method and device for monitoring or measuring a level

Publications (2)

Publication Number Publication Date
FR2383436A1 FR2383436A1 (fr) 1978-10-06
FR2383436B1 true FR2383436B1 (zh) 1982-06-18

Family

ID=4247711

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807076A Granted FR2383436A1 (fr) 1977-03-11 1978-03-10 Procede et dispositif pour surveiller ou mesurer le niveau d'un fluide au moyen de la capacite d'une sonde de mesure plongee dans le fluide

Country Status (3)

Country Link
CH (1) CH610658A5 (zh)
DE (1) DE2809340A1 (zh)
FR (1) FR2383436A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101490567B (zh) * 2006-06-01 2011-09-07 伊莱克斯家用产品公司 测量电容元件容量的方法和设备

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058364B (en) * 1979-09-01 1983-03-23 Ferranti Ltd Capacitance measuring apparatus
IT1131315B (it) * 1980-06-13 1986-06-18 Logic Spa Sistema di rilevamento e segnalazione della quantita' di carburante contenuto in un serbatoio di veicoli,particolarmente di veicoli aerei
IT1211347B (it) * 1987-07-31 1989-10-18 Fiat Auto Spa Dispositivo di misura del quantitativo di liquido contenuto all interno di un serbatoio
DE3902107A1 (de) * 1989-01-25 1990-08-02 Kessler Franz Kapazitive fuellstands- und niveaumesseinrichtung
DE19728280C2 (de) * 1996-11-21 2001-12-20 Alfred Haupt Kapazitätssonde und dazugehörige Auswerteschaltung
DE10023850B4 (de) * 2000-05-16 2005-02-10 Alfred Haupt Kapazitives Meßsystem mit automatischer Kompensation der Kabellänge und des kabelbedingten Temperaturfehlers bei einer kontinuierlichen kapazitiven Füllstandsmessung
DE10324731A1 (de) * 2003-05-31 2004-12-16 Braun Gmbh Verfahren und Schaltungsanordnung zur Detektion eines Füllstands einer Flüssigkeit
JP4970129B2 (ja) * 2006-05-26 2012-07-04 株式会社フジクラ 近接検知センサ及び近接検知方法
CN101078774B (zh) * 2006-05-26 2012-07-18 株式会社藤仓 接近传感器和接近感测方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101490567B (zh) * 2006-06-01 2011-09-07 伊莱克斯家用产品公司 测量电容元件容量的方法和设备

Also Published As

Publication number Publication date
FR2383436A1 (fr) 1978-10-06
CH610658A5 (en) 1979-04-30
DE2809340A1 (de) 1978-09-21

Similar Documents

Publication Publication Date Title
FR2377175B1 (zh)
CH629357GA3 (zh)
DE2717887C2 (zh)
DE2742332C3 (zh)
DE2806957C2 (zh)
FR2376729B1 (zh)
DE2719916C2 (zh)
AU3353778A (zh)
DE2717485C2 (zh)
FR2377100B1 (zh)
DK141776C (zh)
AU495917B2 (zh)
AR210643A1 (zh)
AU71461S (zh)
BG25848A1 (zh)
BG25841A1 (zh)
BG25860A1 (zh)
BG25855A1 (zh)
BG25937A1 (zh)
BG25853A1 (zh)
BG25852A1 (zh)
BG25851A1 (zh)
BG26919A1 (zh)
BG25850A1 (zh)
CH614741A5 (zh)

Legal Events

Date Code Title Description
ST Notification of lapse