Method and device for determining the weight of a food contained

Electric heating – Metal heating – Of cylinders

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Details

219 1055B, 219 1055A, 219 1055R, 219 1055F, 99325, 99451, 374149, H05B 668

Patent

active

052371425

ABSTRACT:
A method and apparatus for determining the weight of foods contained in a microwave oven and for controlling their treatment in accordance with that weight. The apparatus determines the weight by measuring the heating of a body of microwave-sensitive material disposed in the chamber and not shielded by the food during a stage of operation of the magnetron at a predetermined power for a predetermined time, wherein the heating of the body disposed in the cooking chamber is measured. Thereafter, cold is administered to the body so as to return its temperature to a constant value and maintain it thereat until another weight determination is to be made. The method is implemented by an apparatus including a body constructed of microwave-sensitive material positioned on a wall of the cooking chamber, a temperature sensor for sensing the rise in temperature of the material when exposed to microwave energy, and a cold generator for returning the temperature of the material to a constant temperature.

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