GB674750A - Improvements relating to instruments for detecting conditions likely to result in the formation of ice - Google Patents
Improvements relating to instruments for detecting conditions likely to result in the formation of iceInfo
- Publication number
- GB674750A GB674750A GB1914349A GB1914349A GB674750A GB 674750 A GB674750 A GB 674750A GB 1914349 A GB1914349 A GB 1914349A GB 1914349 A GB1914349 A GB 1914349A GB 674750 A GB674750 A GB 674750A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- heated
- temperature
- elements
- openings
- 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
Links
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
674,750. Meteorological instruments. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 20, 1950 [July 20, 1949], No. 19143/49. Class 97 (iii). [Also in Group XXXVIII] An instrument, e.g. for aircraft, for detecting conditions likely to result in the formation of ice from the atmosphere comprises two heated elements supplied with heat at constant rate, one of which is impinged directly by the air and the other by the air freed from water droplets, and each of said elements has associated therewith means responsive to the temperature thereof. A constant difference may be maintained between the temperatures of the two heated elements in air free from droplets and means may then be provided to respond to such change of this temperature difference due to the presence of water droplets in the air. As shown, the instrument comprises a casing 8, 9 divided internally by a partition 10 into front and rear portions. The front portion contains a heater 13, 14 by which its walls 8, 9 are heated and has a heated element 2 against which air may impinge directly mounted at the front of the portion. The rear portion contains another heated element 7 and is open to the ambient atmosphere at the front and at the rear thereof as by rectangular passageways or openings 17, 18, 19. The cross-sectional configuration of the casing as a whole and the openings 17, 18, 19 to the atmosphere are such that when moved forwardly through the air an aerodynamic action takes.place whereby air is drawn from the front of the rear portion through openings 17, 18 and is replaced by air having passed over surfaces 8, 9 and freed from water entering the rear portion through opening 19 so as to impinge on the heated element 7. The heated element 2 is indirectly heated from an electrical heater element 1, is such that its resistance varies with temperature and backs a thin sheet of material 3 against which the air impinges. The resistance of element 7 also varies with temperature and is electrically heated by an internal heater 6. The elements 2 and 7 may then be connected into the arms of a bridge circuit for indicating the temperature difference or alternatively thermocouples may be employed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1914349A GB674750A (en) | 1949-07-20 | 1949-07-20 | Improvements relating to instruments for detecting conditions likely to result in the formation of ice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1914349A GB674750A (en) | 1949-07-20 | 1949-07-20 | Improvements relating to instruments for detecting conditions likely to result in the formation of ice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB674750A true GB674750A (en) | 1952-07-02 |
Family
ID=10124471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1914349A Expired GB674750A (en) | 1949-07-20 | 1949-07-20 | Improvements relating to instruments for detecting conditions likely to result in the formation of ice |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB674750A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2766619A (en) * | 1953-06-26 | 1956-10-16 | Tribus Myron | Ice detecting apparatus |
| DE1020240B (en) * | 1954-09-17 | 1957-11-28 | Napier & Son Ltd | Process for producing a de-icing system |
| US3000213A (en) * | 1955-08-08 | 1961-09-19 | Cook Electric Co | Fluid testing probe |
| EP1422137A1 (en) * | 2002-11-19 | 2004-05-26 | Rosemount Aerospace Inc. | Thermal icing conditions detector |
| US7031871B2 (en) | 2004-06-04 | 2006-04-18 | Rosemount Aerospace, Inc. | Sensor assembly for determining total temperature, static temperature and Mach number |
| US7965201B2 (en) | 2003-04-16 | 2011-06-21 | The Boeing Company | Method and apparatus for detecting conditions conducive to ice formation |
| US8711008B2 (en) | 2003-08-20 | 2014-04-29 | The Boeing Company | Methods and systems for detecting icing conditions |
| CN114476079A (en) * | 2021-12-27 | 2022-05-13 | 武汉航空仪表有限责任公司 | Sensor and method based on icing condition judgment |
-
1949
- 1949-07-20 GB GB1914349A patent/GB674750A/en not_active Expired
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2766619A (en) * | 1953-06-26 | 1956-10-16 | Tribus Myron | Ice detecting apparatus |
| DE1020240B (en) * | 1954-09-17 | 1957-11-28 | Napier & Son Ltd | Process for producing a de-icing system |
| US3000213A (en) * | 1955-08-08 | 1961-09-19 | Cook Electric Co | Fluid testing probe |
| US7416329B2 (en) | 2002-11-19 | 2008-08-26 | Rosemount Aerospace Inc. | Thermal icing conditions detector |
| US7014357B2 (en) | 2002-11-19 | 2006-03-21 | Rosemount Aerospace Inc. | Thermal icing conditions detector |
| EP1422137A1 (en) * | 2002-11-19 | 2004-05-26 | Rosemount Aerospace Inc. | Thermal icing conditions detector |
| US7674036B2 (en) | 2002-11-19 | 2010-03-09 | Rosemount Aerospace, Inc. | Thermal icing conditions detector |
| US8182140B2 (en) | 2002-11-19 | 2012-05-22 | Rosemount Aerospace, Inc. | Thermal icing conditions detector |
| US8348501B2 (en) | 2002-11-19 | 2013-01-08 | Rosemount Aerospace, Inc. | Thermal icing conditions detector |
| US7965201B2 (en) | 2003-04-16 | 2011-06-21 | The Boeing Company | Method and apparatus for detecting conditions conducive to ice formation |
| US8711008B2 (en) | 2003-08-20 | 2014-04-29 | The Boeing Company | Methods and systems for detecting icing conditions |
| US7031871B2 (en) | 2004-06-04 | 2006-04-18 | Rosemount Aerospace, Inc. | Sensor assembly for determining total temperature, static temperature and Mach number |
| CN114476079A (en) * | 2021-12-27 | 2022-05-13 | 武汉航空仪表有限责任公司 | Sensor and method based on icing condition judgment |
| CN114476079B (en) * | 2021-12-27 | 2023-10-20 | 武汉航空仪表有限责任公司 | Sensor and method based on icing condition judgment |
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