DK404484D0 - Optisk foeler - Google Patents

Optisk foeler

Info

Publication number
DK404484D0
DK404484D0 DK404484A DK404484A DK404484D0 DK 404484 D0 DK404484 D0 DK 404484D0 DK 404484 A DK404484 A DK 404484A DK 404484 A DK404484 A DK 404484A DK 404484 D0 DK404484 D0 DK 404484D0
Authority
DK
Denmark
Prior art keywords
ice
deposition
optical sensor
light transmitting
conducting material
Prior art date
Application number
DK404484A
Other languages
English (en)
Other versions
DK156095B (da
DK404484A (da
Inventor
G R Toes
Original Assignee
Contronics Holland
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 Contronics Holland filed Critical Contronics Holland
Publication of DK404484D0 publication Critical patent/DK404484D0/da
Publication of DK404484A publication Critical patent/DK404484A/da
Publication of DK156095B publication Critical patent/DK156095B/da

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Glass Compositions (AREA)
  • Gyroscopes (AREA)
  • Air Bags (AREA)
  • Measuring Fluid Pressure (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Light Receiving Elements (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
DK404484A 1983-08-25 1984-08-24 Optisk foeler til detektering af rim- eller isafsaetning DK156095B (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8302970A NL8302970A (nl) 1983-08-25 1983-08-25 Opnemer voor de detectie van ijsafzetting op koelelementen.
NL8302970 1983-08-25

Publications (3)

Publication Number Publication Date
DK404484D0 true DK404484D0 (da) 1984-08-24
DK404484A DK404484A (da) 1985-02-26
DK156095B DK156095B (da) 1989-06-19

Family

ID=19842307

Family Applications (1)

Application Number Title Priority Date Filing Date
DK404484A DK156095B (da) 1983-08-25 1984-08-24 Optisk foeler til detektering af rim- eller isafsaetning

Country Status (5)

Country Link
EP (1) EP0135958B1 (da)
AT (1) ATE30468T1 (da)
DE (1) DE3467032D1 (da)
DK (1) DK156095B (da)
NL (1) NL8302970A (da)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297370A (en) * 1938-07-20 1942-09-29 Hoover Co Refrigeration
US3280577A (en) * 1963-11-20 1966-10-25 Matsushita Electric Industrial Co Ltd Automatic defrosting control device
CA1089949A (en) * 1978-03-17 1980-11-18 John H. Taylor Frost detecting device

Also Published As

Publication number Publication date
EP0135958A2 (en) 1985-04-03
NL8302970A (nl) 1985-03-18
ATE30468T1 (de) 1987-11-15
EP0135958A3 (en) 1986-02-05
EP0135958B1 (en) 1987-10-28
DK156095B (da) 1989-06-19
DK404484A (da) 1985-02-26
DE3467032D1 (en) 1987-12-03

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Legal Events

Date Code Title Description
PHB Application deemed withdrawn due to non-payment or other reasons