Two-resistor ice detector

Details Two-resistor ice detector Two-resistor ice detector

1988-06-20

1989-11-21

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340580, G08B 2100

Patent

active

048825743

ABSTRACT:
An ice detector comprises first and second simultaneously electrically energized resistors one of which is in good thermal contact with the surface where the presence or absence of ice is to be detected and the other of which is thermally insulated from that surface. When ice is present on that surface there will be a different between the temperatures, and hence the resistances, of the two resistors, which difference, when sensed, indicates the existence of ice.

REFERENCES:
patent: 2803813 (1957-08-01), Bullen et al.
patent: 3164820 (1965-01-01), Hullett
patent: 3305851 (1967-02-01), Brandtszteter
patent: 3571900 (1970-06-01), Roussel
patent: 4037427 (1977-07-01), Kramer
patent: 4210021 (1980-07-01), Vykhodtseu et al.
patent: 4333004 (1982-06-01), Forgue et al.
patent: 4755062 (1988-07-01), Meyer

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