Means and techniques useful in detecting ice on aircraft surfaces
US4819480A · kind A · utility
18Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D15/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Ice formation on an aircraft surface swept of an air flow is detected by using an electrical heater which produces a small limited amount of heat to, on the one hand a heat flow meter and, on the other hand to a heat sink. When there is no ice on the transducer it produces a large output signal but when ice forms on the transducer the ice, due to its high resistance to heat flow, causes a change in balance between the two heat flows and a change in output of the heat flow measuring transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.