Means and techniques useful in detecting ice on aircraft surface

Details Means and techniques useful in detecting ice on aircraft surface Means and techniques useful in detecting ice on aircraft surface

1988-01-25

1989-04-11

Ruehl, Charles A.

Measuring and testing

Meteorology

Electric disturbance

244134F, 340581, B64D 1520, G01W 100

Patent

active

048194808

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.

REFERENCES:
patent: 3276254 (1966-10-01), Richard
patent: 3305851 (1967-02-01), Brandtszteter
patent: 3525648 (1970-08-01), Poppendiek
patent: 4333004 (1982-06-01), Forgve et al.

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