Microwave. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Household Appliances
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Invented the microwave oven and patented in 1945 the principle of its operation Percy Spencer, an engineer at the American company Raytheon Corporation, which conducted research in the field of radar technology in the mid-40s. While measuring the parameters of a newly designed magnetron, Spencer accidentally discovered that the candy in his pocket had melted.
The researcher did not pass by this fact, continued the experiments and found that the products are heated very quickly with the help of a magnetron. So, while working on completely different problems, the microwave oven was invented - an outstanding invention of the twentieth century.
Food in a microwave oven is cooked under the influence of microwaves, which are also called microwave radiation. A microwave device emits microwaves - a magnetron.
The beam of microwaves hits a rotating reflector fan, which reflects the microwaves in all directions. Cooked food is placed on a rotating disc, so it is baked evenly. Microwaves create eddy electric currents throughout the entire volume of food, heating and baking food from the inside, so the process of cooking them is faster than in a traditional oven. Cooking can be observed through the glass of the oven door. A special metal mesh on the door delays microwaves.
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