NL7212122A - - Google Patents

Info

Publication number
NL7212122A
NL7212122A NL7212122A NL7212122A NL7212122A NL 7212122 A NL7212122 A NL 7212122A NL 7212122 A NL7212122 A NL 7212122A NL 7212122 A NL7212122 A NL 7212122A NL 7212122 A NL7212122 A NL 7212122A
Authority
NL
Netherlands
Application number
NL7212122A
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 NL7212122A publication Critical patent/NL7212122A/xx

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • G08B19/02—Alarm responsive to formation or anticipated formation of ice
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/02—Detecting the presence of frost or condensate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • G01W1/14—Rainfall or precipitation gauges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/11—Sensor to detect if defrost is necessary
    • F25B2700/111—Sensor to detect if defrost is necessary using an emitter and receiver, e.g. sensing by emitting light or other radiation and receiving reflection by a sensor
NL7212122A 1971-09-09 1972-09-06 NL7212122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00178871A US3836846A (en) 1971-09-09 1971-09-09 Ice detection apparatus employing microwave reflectance

Publications (1)

Publication Number Publication Date
NL7212122A true NL7212122A (en) 1973-03-13

Family

ID=22654248

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7212122A NL7212122A (en) 1971-09-09 1972-09-06

Country Status (5)

Country Link
US (1) US3836846A (en)
JP (1) JPS4837180A (en)
DE (1) DE2244166A1 (en)
GB (1) GB1364139A (en)
NL (1) NL7212122A (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936736A (en) * 1974-08-28 1976-02-03 Lockheed Aircraft Corporation Radome test instrument
US4054255A (en) * 1976-04-01 1977-10-18 System Development Corporation Microwave ice detector
US4060212A (en) * 1976-04-01 1977-11-29 System Development Corporation Deicing apparatus and method
DE2733760C3 (en) * 1977-07-27 1981-07-23 Caspers, Friedhelm, Dipl.-Ing., 4630 Bochum Method for the non-contact determination of the thickness and relative permittivity of dielectric layers and device for carrying out the method
DE3026256A1 (en) * 1980-07-11 1982-02-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt SENSOR FOR RIPENING
IT1211006B (en) * 1981-03-09 1989-09-29 Cise Spa MICROWAVE SENSOR FOR CHECKING THE LEVEL OF THE MELTED METAL IN CONTINUOUS CASTINGS.
US4688185A (en) * 1982-01-05 1987-08-18 University Research Foundation Microwave ice accretion measuring instrument
US4470123A (en) * 1982-01-05 1984-09-04 Miami R & D Limited Partnership Microwave ice accretion meter
GB2117925B (en) * 1982-02-19 1986-02-05 Hitachi Heating Appl Heating apparatus of thawing sensor controlled type
AT400988B (en) * 1983-11-07 1996-05-28 Strahlen Umweltforsch Gmbh METHOD FOR MEASURING WEATHER-CONDITIONS OF STATUS ON THE SURFACE OF TRAFFIC AREAS AND DEVICE FOR IMPLEMENTING THE METHOD
US4649713A (en) * 1984-05-21 1987-03-17 Bezek Donald J Microwave ice detector
DE4040842A1 (en) * 1990-08-04 1992-02-06 Telefunken Systemtechnik INFRARED MICROWAVE SENSOR SYSTEM FOR DETECTING THE ROAD CONDITION
US5313202A (en) * 1991-01-04 1994-05-17 Massachusetts Institute Of Technology Method of and apparatus for detection of ice accretion
US5611239A (en) * 1994-09-21 1997-03-18 Magnetrol International Inc. Microwave point instrument with self-test circuit
US5497100A (en) * 1994-10-17 1996-03-05 Hughes Aircraft Company Surface condition sensing system
US5629485A (en) * 1994-12-13 1997-05-13 The B.F. Goodrich Company Contaminant detection sytem
DE19608535A1 (en) * 1996-03-06 1997-09-11 Tobias Kippenberg Apparatus for identifying ice on road
US6064903A (en) * 1997-12-29 2000-05-16 Spectra Research, Inc. Electromagnetic detection of an embedded dielectric region within an ambient dielectric region
DE10016315B4 (en) 2000-03-31 2007-11-29 G. LUFFT MEß- UND REGELTECHNIK GMBH Device for measuring layer thicknesses
PL1606784T3 (en) * 2003-03-14 2008-03-31 Liwas Aps A device for detection of road surface condition
DE102004026637A1 (en) * 2004-05-13 2005-12-08 Daimlerchrysler Ag Device for determining the road condition
US7148703B2 (en) * 2004-05-14 2006-12-12 Zircon Corporation Auto-deep scan for capacitive sensing
US8779945B2 (en) 2010-03-17 2014-07-15 Sikorsky Aircraft Corporation Virtual ice accretion meter display
FR2966234B1 (en) * 2010-10-14 2012-10-05 Aer METHOD AND DEVICE FOR ANTICIPATED DETECTION OF FROZEN ON A TRACK
US8800362B2 (en) * 2012-12-19 2014-08-12 Progress Rail Services Corp Precipitation detector for railroad applications
US9401089B2 (en) * 2013-10-21 2016-07-26 University Corporation For Atmospheric Research Road weather hazard system
RU2637797C1 (en) * 2016-07-22 2017-12-07 Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук Method for determining state of road surface
CN107059580B (en) * 2017-06-21 2019-04-12 中国民航大学 A kind of airport machine level ground cement road face seam water detection remover apparatus
DE102019205903A1 (en) * 2019-04-25 2020-10-29 Robert Bosch Gmbh Method and device for determining a solid state of water on a road surface
US11802756B2 (en) 2020-08-18 2023-10-31 Steven R. Weeres Ice thickness transducer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233172A (en) * 1960-06-27 1966-02-01 Corning Glass Works Method of determining the dielectric constant of a material using calibrated standards
FR1356048A (en) * 1963-04-30 1964-03-20 Thomson Houston Comp Francaise Improvements to humidity measuring devices

Also Published As

Publication number Publication date
GB1364139A (en) 1974-08-21
DE2244166A1 (en) 1973-03-15
JPS4837180A (en) 1973-06-01
US3836846A (en) 1974-09-17

Similar Documents

Publication Publication Date Title
JPS4837180A (en)
ATA136472A (en)
AR196074A1 (en)
AU3005371A (en)
AU2485671A (en)
AU2894671A (en)
AU2941471A (en)
AU2742671A (en)
AU2952271A (en)
AU2927871A (en)
AU2963771A (en)
AU2503871A (en)
AU2875571A (en)
AU2486471A (en)
AU2940971A (en)
AU2880771A (en)
AU2885171A (en)
AU3038671A (en)
AU3025871A (en)
AU2740271A (en)
AU2473671A (en)
AR192311Q (en)
AU2938071A (en)
AU2907471A (en)
AU2456871A (en)