ES2074581T3 - Circuito detector de hielo adaptable. - Google Patents

Circuito detector de hielo adaptable.

Info

Publication number
ES2074581T3
ES2074581T3 ES90914835T ES90914835T ES2074581T3 ES 2074581 T3 ES2074581 T3 ES 2074581T3 ES 90914835 T ES90914835 T ES 90914835T ES 90914835 T ES90914835 T ES 90914835T ES 2074581 T3 ES2074581 T3 ES 2074581T3
Authority
ES
Spain
Prior art keywords
time
melting
ice
temperature
circuit
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 - Lifetime
Application number
ES90914835T
Other languages
English (en)
Inventor
Kenneth J Freeman
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.)
Rosemount Inc
Original Assignee
Rosemount Inc
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 Rosemount Inc filed Critical Rosemount Inc
Application granted granted Critical
Publication of ES2074581T3 publication Critical patent/ES2074581T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
    • B64D15/20—Means for detecting icing or initiating de-icing
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

UN CIRCUITO DETECTOR DE HIELO (60) CONTROLA EL CALENTAMIENTO DE UNA SONDA DE DETECCION DE HIELO (62). EL CIRCUITO (62) GENERA UNA SALIDA DE FORMACION DE HIELO COMO UNA FUNCION DE UNA SALIDA DE TEMPERATURA GENERADA POR LA SONDA (62). EL CIRCUITO DE CONTROL (114) CONTROLA CICLICAMENTE UN TIEMPO INICIAL DEL CALENTAMIENTO. UN CIRCUITO DE MEDICION DE TIEMPO (106) MIDE UN TIEMPO DE CALENTAMIENTO A UN PRIMER UMBRAL DE TEMPERATURA POR DEBAJO DE LA TEMPERATURA DE FUSION, Y QUE MIDE UN TIEMPO DE FUSION A UNA SEGUNDA TEMPERATURA POR ENCIMA DEL TIEMPO DE FUSION. UN COMPARADOR (124) COMPARA EL TIEMPO DE FUSION CON UN PARAMETRO DE COMPARACION ALMACENADO (122) AJUSTADO POR EL TIEMPO DE CALENTAMIENTO Y PREVE LA SALIDA DE FORMACION DE HIELO.
ES90914835T 1989-09-21 1990-08-09 Circuito detector de hielo adaptable. Expired - Lifetime ES2074581T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41025189A 1989-09-21 1989-09-21

Publications (1)

Publication Number Publication Date
ES2074581T3 true ES2074581T3 (es) 1995-09-16

Family

ID=23623913

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90914835T Expired - Lifetime ES2074581T3 (es) 1989-09-21 1990-08-09 Circuito detector de hielo adaptable.

Country Status (8)

Country Link
EP (1) EP0494226B1 (es)
JP (1) JPH05500489A (es)
BR (1) BR9007672A (es)
CA (1) CA2064028A1 (es)
DE (1) DE69021069T2 (es)
ES (1) ES2074581T3 (es)
IL (1) IL95545A (es)
WO (1) WO1991004646A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2712981B1 (fr) * 1993-11-25 1996-01-12 Sextant Avionique Procédé et dispositifs de détermination de la sévérité des conditions givrantes pour un aéronef.
DE19528862A1 (de) * 1995-08-05 1997-02-06 Aloys Wobben Verfahren zum Enteisen eines Rotorblattes einer Windenergieanlage sowie zur Durchführung des Verfahrens geeignetes Rotorblatt
US8517601B2 (en) * 2010-09-10 2013-08-27 Ultra Electronics Limited Ice detection system and method
FR3024226B1 (fr) * 2014-07-23 2019-05-10 Commissariat A L'energie Atomique Et Aux Energies Alternatives Procede et systeme de detection de givre
CN112214047B (zh) * 2020-08-27 2021-11-16 烟台三鼎化工有限公司 反应釜用温度调控方法、装置、计算机设备及存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928208C2 (de) * 1979-07-12 1983-10-20 Apparatebau Gauting Gmbh, 8035 Gauting Verfahren zur Erkennung einer Vereisungsgefahr sowie Eiswarnsensor zur Durchführung dieses Verfahrens
US4333004A (en) * 1980-02-19 1982-06-01 Dataproducts New England, Inc. Detecting ice forming weather conditions
US4522512A (en) * 1982-05-05 1985-06-11 The United States Of America As Represented By The Secretary Of The Army Thermal conductivity measurement method
US4980673A (en) * 1987-06-10 1990-12-25 Rosemount Inc. Ice detector circuit

Also Published As

Publication number Publication date
DE69021069D1 (de) 1995-08-24
BR9007672A (pt) 1992-06-02
EP0494226A4 (en) 1992-10-21
IL95545A0 (en) 1991-06-30
EP0494226B1 (en) 1995-07-19
JPH05500489A (ja) 1993-02-04
DE69021069T2 (de) 1996-03-21
IL95545A (en) 1994-07-31
CA2064028A1 (en) 1991-03-22
EP0494226A1 (en) 1992-07-15
WO1991004646A1 (en) 1991-04-04

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