NL7210710A - - Google Patents

Info

Publication number
NL7210710A
NL7210710A NL7210710A NL7210710A NL7210710A NL 7210710 A NL7210710 A NL 7210710A NL 7210710 A NL7210710 A NL 7210710A NL 7210710 A NL7210710 A NL 7210710A NL 7210710 A NL7210710 A NL 7210710A
Authority
NL
Netherlands
Application number
NL7210710A
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 filed Critical
Publication of NL7210710A publication Critical patent/NL7210710A/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
    • 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
    • G01F23/2924—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms 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)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
NL7210710A 1971-08-09 1972-08-04 NL7210710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712139865 DE2139865B2 (en) 1971-08-09 1971-08-09 LEVEL INDICATOR OR CONDITION DETECTOR WITH A LIGHT GUIDING ROD PASSED THROUGH A PARTITION WALL

Publications (1)

Publication Number Publication Date
NL7210710A true NL7210710A (en) 1973-02-13

Family

ID=5816253

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7210710A NL7210710A (en) 1971-08-09 1972-08-04

Country Status (6)

Country Link
BE (1) BE787319A (en)
CH (1) CH567714A5 (en)
DE (1) DE2139865B2 (en)
FR (1) FR2148650B1 (en)
GB (1) GB1387672A (en)
NL (1) NL7210710A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU524951B2 (en) * 1978-04-19 1982-10-14 See Probe Electronics Pty. Ltd. L.e.d. reflectance fluid level indicator
DE8218877U1 (en) * 1982-07-01 1982-10-07 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart FACILITIES, IN PARTICULAR ON DISHWASHER, ZURNIVEAURE REGULATION
FR2531530B1 (en) * 1982-08-06 1988-05-27 Fayollet Roland DEVICE FOR THE OPTICAL DETECTION OF A LIQUID LEVEL
DE3423580A1 (en) * 1984-06-27 1986-01-02 Degussa Ag, 6000 Frankfurt METHOD FOR TREATING FLUIDIZED SOOT WITH GASES, FLUID BED APPARATUS FOR CARRYING OUT THE METHOD AND LIMIT VALUES USED IN THE APPARATUS
DE3526266A1 (en) * 1985-07-23 1987-02-05 Fraunhofer Ges Forschung Optical level sensor
DE3617717C2 (en) * 1986-05-27 1995-08-17 Siemens Ag Fiber optic level sensor
US5279157A (en) * 1992-08-03 1994-01-18 Casco Products Corporation Liquid level monitor
DE102014209734A1 (en) * 2014-05-22 2015-11-26 BSH Hausgeräte GmbH Dryers with internal cleaning of a water level sensor and method for its operation

Also Published As

Publication number Publication date
GB1387672A (en) 1975-03-19
FR2148650B1 (en) 1976-03-12
DE2139865B2 (en) 1976-12-02
FR2148650A1 (en) 1973-03-23
BE787319A (en) 1972-12-01
CH567714A5 (en) 1975-10-15
DE2139865A1 (en) 1973-02-15

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Legal Events

Date Code Title Description
BV The patent application has lapsed