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EP0135958A3 - Optical ice-deposition sensor - Google Patents

Optical ice-deposition sensor Download PDF

Info

Publication number
EP0135958A3
EP0135958A3 EP84201212A EP84201212A EP0135958A3 EP 0135958 A3 EP0135958 A3 EP 0135958A3 EP 84201212 A EP84201212 A EP 84201212A EP 84201212 A EP84201212 A EP 84201212A EP 0135958 A3 EP0135958 A3 EP 0135958A3
Authority
EP
European Patent Office
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.)
Granted
Application number
EP84201212A
Other versions
EP0135958B1 (en
EP0135958A2 (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 BV
Original Assignee
CONTRONICS HOLLAND BV
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 BV filed Critical CONTRONICS HOLLAND BV
Priority to AT84201212T priority Critical patent/ATE30468T1/en
Publication of EP0135958A2 publication Critical patent/EP0135958A2/en
Publication of EP0135958A3 publication Critical patent/EP0135958A3/en
Application granted granted Critical
Publication of EP0135958B1 publication Critical patent/EP0135958B1/en
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)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Glass Compositions (AREA)
  • Air Bags (AREA)
  • Measuring Fluid Pressure (AREA)
  • Gyroscopes (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Light Receiving Elements (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

An optical ice-deposition sensor adapted to be connected with a cooling means and comprising light transmitting and receiving means for detecting ice-deposition on an ice-formation surface disposed in relationship to the optical path between the light transmitting and receiving means whereby at least that part of the ice-deposition sensor which comprises the connection with the cooling means is made from satisfactorily heat-conducting material and comprises an ice-deposition means made from satisfactorily heat-conducting material determining the ice-formation surface.
EP84201212A 1983-08-25 1984-08-23 Optical ice-deposition sensor Expired EP0135958B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84201212T ATE30468T1 (en) 1983-08-25 1984-08-23 OPTICAL ICE FLOOR INDICATOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8302970 1983-08-25
NL8302970A NL8302970A (en) 1983-08-25 1983-08-25 RECORD FOR THE DETECTION OF ICE SALES ON COOLING ELEMENTS.

Publications (3)

Publication Number Publication Date
EP0135958A2 EP0135958A2 (en) 1985-04-03
EP0135958A3 true EP0135958A3 (en) 1986-02-05
EP0135958B1 EP0135958B1 (en) 1987-10-28

Family

ID=19842307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201212A Expired EP0135958B1 (en) 1983-08-25 1984-08-23 Optical ice-deposition sensor

Country Status (5)

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

Citations (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 (en) * 1978-03-17 1980-11-18 John H. Taylor Frost detecting device

Patent Citations (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 (en) * 1978-03-17 1980-11-18 John H. Taylor Frost detecting device

Also Published As

Publication number Publication date
DK404484A (en) 1985-02-26
DK404484D0 (en) 1984-08-24
DK156095B (en) 1989-06-19
NL8302970A (en) 1985-03-18
EP0135958B1 (en) 1987-10-28
ATE30468T1 (en) 1987-11-15
EP0135958A2 (en) 1985-04-03
DE3467032D1 (en) 1987-12-03

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