Ice detector, especially for aircraft

Details Ice detector, especially for aircraft Ice detector, especially for aircraft

1990-04-27

1991-05-07

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

244134F, 340962, G08B 2100

Patent

active

050140426

ABSTRACT:
A source sends light towards a receiver through an optical channel, a part of which has an interface with the external environment. The light that reaches this interface is reflected towards the receiver when the external environment is in contact with air and is refracted towards the external environment in the presence of water or ice. In streaming down the interface, the rain creates a modulation, not created by ice, in the signal of the receiver. The circuits downline of the receiver search for this modulation to determine whether the modifications of the signal of the receiver are due to rain or to ice.

REFERENCES:
patent: 4766369 (1988-08-01), Weinstein
patent: 4782331 (1988-11-01), Martens
patent: 4803470 (1989-02-01), Fineman
patent: 4851817 (1989-07-01), Brossia et al.

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