CH614044A5 - - Google Patents

Info

Publication number
CH614044A5
CH614044A5 CH278877A CH278877A CH614044A5 CH 614044 A5 CH614044 A5 CH 614044A5 CH 278877 A CH278877 A CH 278877A CH 278877 A CH278877 A CH 278877A CH 614044 A5 CH614044 A5 CH 614044A5
Authority
CH
Switzerland
Application number
CH278877A
Inventor
Benno Perren
Original Assignee
Benno Perren
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 Benno Perren filed Critical Benno Perren
Priority to CH278877A priority Critical patent/CH614044A5/xx
Priority to DE2724039A priority patent/DE2724039C2/de
Priority to US05/881,799 priority patent/US4201914A/en
Priority to FR7806194A priority patent/FR2383435A1/fr
Priority to GB8567/78A priority patent/GB1600101A/en
Priority to JP2440578A priority patent/JPS53131071A/ja
Publication of CH614044A5 publication Critical patent/CH614044A5/xx

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
    • G01F23/28—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
    • G01F23/2927—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means for several discrete levels, e.g. with more than one light-conducting sensing element

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
CH278877A 1977-03-07 1977-03-07 CH614044A5 (xx)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH278877A CH614044A5 (xx) 1977-03-07 1977-03-07
DE2724039A DE2724039C2 (de) 1977-03-07 1977-05-27 Elektro-optische Meßvorrichtung für den Nachweis des Vorhandenseins von Flüssigkeit
US05/881,799 US4201914A (en) 1977-03-07 1978-02-27 Electrical instrument to detect the presence of liquid and method of operating the same
FR7806194A FR2383435A1 (fr) 1977-03-07 1978-03-03 Appareil electro-optique pour detecter la presence de liquide
GB8567/78A GB1600101A (en) 1977-03-07 1978-03-03 Probe for detecting the presence of liquids
JP2440578A JPS53131071A (en) 1977-03-07 1978-03-03 Photoelectric apparatus for detection of existence of liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH278877A CH614044A5 (xx) 1977-03-07 1977-03-07

Publications (1)

Publication Number Publication Date
CH614044A5 true CH614044A5 (xx) 1979-10-31

Family

ID=4241602

Family Applications (1)

Application Number Title Priority Date Filing Date
CH278877A CH614044A5 (xx) 1977-03-07 1977-03-07

Country Status (6)

Country Link
US (1) US4201914A (xx)
JP (1) JPS53131071A (xx)
CH (1) CH614044A5 (xx)
DE (1) DE2724039C2 (xx)
FR (1) FR2383435A1 (xx)
GB (1) GB1600101A (xx)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748477U (xx) * 1980-09-03 1982-03-18
JPS5839551U (ja) * 1981-09-10 1983-03-15 東北リコ−株式会社 屈折率測定装置
DE3515767A1 (de) * 1985-05-02 1986-11-06 Alfred Teves Gmbh, 6000 Frankfurt Vorrichtung zur ermittlung und ueberwachung der beschaffenheit, des zustands und des fuellstands einer druckfluessigkeit
US4764671A (en) * 1986-10-03 1988-08-16 Kollmorgen Corporation Fiber optic fluid sensor using coated sensor tip
JPS63124648U (xx) * 1987-02-06 1988-08-15
US4813422A (en) * 1987-03-06 1989-03-21 Healthcare Technological Resources, Inc. Bowel control probe and method for controlling bowel incontinence
US4904878A (en) * 1988-08-12 1990-02-27 Caterpillar Inc. Multi-point refractive liquid level sensor
US5015092A (en) * 1989-05-05 1991-05-14 Spectra-Tech, Inc. Sampling probe for optical analyzation of a sample
DE4028883A1 (de) * 1990-09-12 1992-03-19 Rheinhuette Gmbh & Co Verfahren und einrichtung zur anzeige eines ungewoehnlichen betriebszustandes einer maschine oder betriebseinrichtung, insbesondere leckanzeige bzw. leckmelder
JPH0579378U (ja) * 1992-03-26 1993-10-29 三菱電機株式会社 冷蔵庫の中仕切
US5279157A (en) * 1992-08-03 1994-01-18 Casco Products Corporation Liquid level monitor
US5534708A (en) * 1993-12-15 1996-07-09 Simmonds Precision Products Inc. Optical fuel/air/water sensor and detector circuit
EP0795740A1 (en) * 1996-03-13 1997-09-17 Simmonds Precision Products Inc. Self testing optical liquid level sensor
US5831268A (en) * 1996-11-25 1998-11-03 Morita; Yoshimitsu Sensing device for reflective clear material using infrared LED
US6668645B1 (en) 2002-06-18 2003-12-30 Ti Group Automotive Systems, L.L.C. Optical fuel level sensor
JP5274217B2 (ja) * 2008-11-27 2013-08-28 中国電力株式会社 弱点ピン用折損検出装置
CA2798312A1 (en) * 2010-05-04 2011-11-10 University Of South Carolina Detecting surface stains using high absorbance spectral regions in the mid-ir
US20130140462A1 (en) * 2010-05-04 2013-06-06 Michael L. Myrick Detecting surface stains using high absorbance spectral regions in the mid-ir
CN103748441B (zh) 2011-06-07 2016-12-28 精量电子(美国)有限公司 用于流体传感的光学传感装置和光学传感方法
US9885147B2 (en) 2015-04-24 2018-02-06 University Of South Carolina Reproducible sample preparation method for quantitative stain detection
US10041866B2 (en) 2015-04-24 2018-08-07 University Of South Carolina Reproducible sample preparation method for quantitative stain detection
JP6603530B2 (ja) * 2015-09-29 2019-11-06 東京エレクトロン株式会社 プラズマ処理装置、及び、プラズマ処理装置の制御方法
US10175167B2 (en) * 2017-03-28 2019-01-08 Te Connectivity Corporation Optical sensor for detecting accumulation of a material

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1198474A (en) * 1967-04-08 1970-07-15 Valor Co Ltd Improvements in Liquid Level Indicators
US3568628A (en) * 1968-12-09 1971-03-09 Illinois Tool Works Liquid level indicator
CH512060A (de) * 1969-05-27 1971-08-31 Ingenieur Buero Aquasant Optisch-elektrisches Gerät für den Nachweis des Vorhandenseins von Flüssigkeit
US3683196A (en) * 1970-11-27 1972-08-08 Texas Instruments Inc Differential fluid level detector
US3818470A (en) * 1970-11-27 1974-06-18 Texas Instruments Inc Fluid level detector
US3834235A (en) * 1971-12-17 1974-09-10 M Bouton Liquid and solid sensing device
US3766395A (en) * 1971-12-27 1973-10-16 Texas Instruments Inc Fluid level detection system
US3844171A (en) * 1971-12-29 1974-10-29 E Rodger Light guide liquid level indicator
CH556529A (de) * 1972-09-21 1974-11-29 Perren Benno Optisch-elektrisches geraet fuer den nachweis des vorhandenseins von fluessigkeit.
US3851181A (en) * 1973-11-07 1974-11-26 Audronics Inc Blood level detector
US3908129A (en) * 1974-04-08 1975-09-23 Datagage Systems Inc Manometer level detector
DE2505485A1 (de) * 1975-02-10 1976-08-19 Helmut Dipl Chem Ulrich Fuellstandsanzeiger oder zustandsdetektor
CH580802A5 (xx) * 1975-07-21 1976-10-15 Hectronic Ag
US3995169A (en) * 1975-09-17 1976-11-30 Oddon Louis D Optical liquid level gauge

Also Published As

Publication number Publication date
JPS53131071A (en) 1978-11-15
GB1600101A (en) 1981-10-14
FR2383435B1 (xx) 1983-06-10
DE2724039C2 (de) 1981-10-15
DE2724039A1 (de) 1978-09-14
US4201914A (en) 1980-05-06
FR2383435A1 (fr) 1978-10-06

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Legal Events

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