DE3467032D1 - Optical ice-deposition sensor - Google Patents

Optical ice-deposition sensor

Info

Publication number
DE3467032D1
DE3467032D1 DE8484201212T DE3467032T DE3467032D1 DE 3467032 D1 DE3467032 D1 DE 3467032D1 DE 8484201212 T DE8484201212 T DE 8484201212T DE 3467032 T DE3467032 T DE 3467032T DE 3467032 D1 DE3467032 D1 DE 3467032D1
Authority
DE
Germany
Prior art keywords
ice
deposition
deposition sensor
optical
optical ice
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE8484201212T
Other languages
German (de)
English (en)
Inventor
Gerrit R Toes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONTRONICS HOLLAND
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
Application granted granted Critical
Publication of DE3467032D1 publication Critical patent/DE3467032D1/de
Expired legal-status Critical Current

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)
  • Measuring Fluid Pressure (AREA)
  • Air Bags (AREA)
  • Glass Compositions (AREA)
  • Gyroscopes (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Light Receiving Elements (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
DE8484201212T 1983-08-25 1984-08-23 Optical ice-deposition sensor Expired DE3467032D1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3467032D1 true DE3467032D1 (en) 1987-12-03

Family

ID=19842307

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484201212T Expired DE3467032D1 (en) 1983-08-25 1984-08-23 Optical ice-deposition sensor

Country Status (5)

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

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 Ind Co Ltd Automatic defrosting control device
CA1089949A (fr) * 1978-03-17 1980-11-18 John H. Taylor Detecteur de givre

Also Published As

Publication number Publication date
EP0135958A3 (en) 1986-02-05
DK156095B (da) 1989-06-19
EP0135958B1 (fr) 1987-10-28
NL8302970A (nl) 1985-03-18
DK404484D0 (da) 1984-08-24
ATE30468T1 (de) 1987-11-15
EP0135958A2 (fr) 1985-04-03
DK404484A (da) 1985-02-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee