CH620771A5 - - Google Patents

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Publication number
CH620771A5
CH620771A5 CH1216477A CH1216477A CH620771A5 CH 620771 A5 CH620771 A5 CH 620771A5 CH 1216477 A CH1216477 A CH 1216477A CH 1216477 A CH1216477 A CH 1216477A CH 620771 A5 CH620771 A5 CH 620771A5
Authority
CH
Switzerland
Prior art keywords
luminous flux
light
light guide
measurement
sensor
Prior art date
Application number
CH1216477A
Other languages
German (de)
English (en)
Inventor
Roland Menningen
Kurt Ehrsam
Juerg Oberhaensli
Kurt Gruenig
Original Assignee
Hectronic 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 Hectronic Ag filed Critical Hectronic Ag
Priority to CH1216477A priority Critical patent/CH620771A5/de
Priority to ZA00785324A priority patent/ZA785324B/xx
Priority to JP50001778A priority patent/JPS54500013A/ja
Priority to DE78CH7800023T priority patent/DE2857095D2/de
Priority to GB7920839A priority patent/GB2023813A/en
Priority to PCT/CH1978/000023 priority patent/WO1979000180A1/de
Priority to NL7809941A priority patent/NL7809941A/xx
Priority to FR7828431A priority patent/FR2405463A1/fr
Priority to IT7828444A priority patent/IT1099237B/it
Priority to US06/041,915 priority patent/US4275295A/en
Priority to SE7904846A priority patent/SE7904846L/xx
Publication of CH620771A5 publication Critical patent/CH620771A5/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • 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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/90—Optical liquid level sensors
    • Y10S250/901—Optical liquid level sensors with gap between light guide elements, includes open light path preset
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/90—Optical liquid level sensors
    • Y10S250/901—Optical liquid level sensors with gap between light guide elements, includes open light path preset
    • Y10S250/902—Optical liquid level sensors with gap between light guide elements, includes open light path preset with closed light path preset
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/90—Optical liquid level sensors
    • Y10S250/901—Optical liquid level sensors with gap between light guide elements, includes open light path preset
    • Y10S250/902—Optical liquid level sensors with gap between light guide elements, includes open light path preset with closed light path preset
    • Y10S250/903—Optical liquid level sensors with gap between light guide elements, includes open light path preset with closed light path preset with prism contacting liquid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
CH1216477A 1977-10-05 1977-10-05 CH620771A5 (it)

Priority Applications (11)

Application Number Priority Date Filing Date Title
CH1216477A CH620771A5 (it) 1977-10-05 1977-10-05
ZA00785324A ZA785324B (en) 1977-10-05 1978-03-19 Method and apparatus for obtaining and transmitting signals which characterize a monitored physical property of a substance
JP50001778A JPS54500013A (it) 1977-10-05 1978-10-02
DE78CH7800023T DE2857095D2 (en) 1977-10-05 1978-10-02 Indicator for a limit value and a measurement value
GB7920839A GB2023813A (en) 1977-10-05 1978-10-02 Method and apparatus for the automatic stabilisation of drift in radiation measurement
PCT/CH1978/000023 WO1979000180A1 (en) 1977-10-05 1978-10-02 Indicator for a limit value and a measurement value
NL7809941A NL7809941A (nl) 1977-10-05 1978-10-02 Werkwijze en inrichting voor het verkrijgen en het overdragen van signalen die een te controleren fysische eigenschap van een stof weerspiegelen.
FR7828431A FR2405463A1 (fr) 1977-10-05 1978-10-04 Procede et dispositif pour obtenir et transmettre des signaux propres a traduire une propriete physique d'un materiau
IT7828444A IT1099237B (it) 1977-10-05 1978-10-05 Procedimento e dispositivo per ottenere e ritrasmettere segnali rispecchianti una caratteristica fisica da controllare in una sostanza
US06/041,915 US4275295A (en) 1977-10-05 1979-05-23 Limit and measurement value transmitter
SE7904846A SE7904846L (sv) 1977-10-05 1979-06-01 Grens- och metverdesgivare

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1216477A CH620771A5 (it) 1977-10-05 1977-10-05

Publications (1)

Publication Number Publication Date
CH620771A5 true CH620771A5 (it) 1980-12-15

Family

ID=4380479

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1216477A CH620771A5 (it) 1977-10-05 1977-10-05

Country Status (11)

Country Link
US (1) US4275295A (it)
JP (1) JPS54500013A (it)
CH (1) CH620771A5 (it)
DE (1) DE2857095D2 (it)
FR (1) FR2405463A1 (it)
GB (1) GB2023813A (it)
IT (1) IT1099237B (it)
NL (1) NL7809941A (it)
SE (1) SE7904846L (it)
WO (1) WO1979000180A1 (it)
ZA (1) ZA785324B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE411955B (sv) * 1978-06-02 1980-02-11 Asea Ab Fiberoptiskt metdon med hogst tva fibrer
US4472628A (en) * 1981-06-29 1984-09-18 General Electric Company Fiber optics transducers for sensing parameter magnitude
US4462699A (en) * 1981-09-10 1984-07-31 Board Of Trustees Of The Leland Stanford Junior University Fiber coupler temperature transducer
EP0074788B1 (en) * 1981-09-10 1989-05-31 The Board Of Trustees Of The Leland Stanford Junior University Fiber coupler temperature tranducer
FR2514917A1 (fr) * 1981-10-19 1983-04-22 Seeb Sarl Capteur de positionnement et de mouvement a fibres optiques
GB2124757A (en) * 1982-05-21 1984-02-22 Marconi Avionics Measuring displacements optically
DE3234900A1 (de) * 1982-09-21 1984-03-22 Siemens Ag Faseroptischer sensor
DE3505810A1 (de) * 1985-02-20 1986-08-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anordnung zur ermittlung der verstellung bzw. einstellung eines weges oder winkels
DE3629088C1 (en) * 1986-08-27 1988-03-24 Mueller Weingarten Maschf Optoelectronic workpiece position monitoring in the work stations of a press
WO1990001682A1 (en) * 1988-10-20 1990-02-22 Conax Buffalo Corporation Optical liquid level sensors
US5017771A (en) * 1989-11-20 1991-05-21 The Boeing Company Position sensor using optical fibers and a variable filter
US5319978A (en) * 1990-05-02 1994-06-14 Dynisco, Inc. Optical pressure transducer
US5351547A (en) * 1990-05-02 1994-10-04 Dynisco, Inc. Optical pressure transducer having a fixed reflector and a movable reflector attached to a diaphragm
EP0533333A3 (en) * 1991-09-19 1993-07-28 Texaco Development Corporation Optical photometry system
US5376785A (en) * 1992-10-02 1994-12-27 Chin; Philip K. Optical displacement sensor utilizing optical diffusion
US7043984B2 (en) * 2004-01-13 2006-05-16 Fling John J Automatically actuated liquid level sensor
US7418861B2 (en) * 2006-01-10 2008-09-02 Fling John J Mechanically self actuated liquid level sensor
US7444865B2 (en) 2006-05-04 2008-11-04 Fling John J Parallelogram actuated liquid level sensor
JP5357218B2 (ja) * 2011-07-14 2013-12-04 キヤノンファインテック株式会社 インク残量検出装置、インク残量検出方法およびインクジェット記録装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB925798A (en) * 1960-08-30 1963-05-08 Linotype Machinery Ltd Light intensity comparator
US3544799A (en) * 1968-10-23 1970-12-01 Gen Motors Corp Photoelectric liquid level detector with checkout means which increases output of lamp to simulate low-level condition
DE1817027B1 (de) * 1968-12-24 1970-03-05 Danfoss As Fuellstandanzeiger
FR2130819A5 (it) * 1971-03-22 1972-11-10 Snecma
DE2148696A1 (de) * 1971-09-29 1973-04-05 Krauss Maffei Ag Optische einrichtung zum erzeugen eines von der eintauchtiefe eines beweglichen bauteiles in ein messlichtbuendel abhaengigen elektrischen signales
CA1008146A (en) * 1973-02-26 1977-04-05 Andre Rekai Optical self-checking level detector
BE820108A (fr) * 1973-11-27 1975-01-16 Appareil pour determiner la transparence de l'atmospher
DE2448458A1 (de) * 1974-10-11 1976-04-22 Philips Patentverwaltung Anordnung zur elektronischen eichkontrolle bei fotometrischen geraeten

Also Published As

Publication number Publication date
IT7828444A0 (it) 1978-10-05
NL7809941A (nl) 1979-04-09
DE2857095D2 (en) 1980-11-20
GB2023813A (en) 1980-01-03
JPS54500013A (it) 1979-08-23
SE7904846L (sv) 1979-06-01
FR2405463A1 (fr) 1979-05-04
US4275295A (en) 1981-06-23
WO1979000180A1 (en) 1979-04-19
ZA785324B (en) 1979-09-26
IT1099237B (it) 1985-09-18

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