microwave cavity

microwave cavity

Microwave radiation is the basic tool of microwave ovens or microwaves to cook or heat the desired food stuff. The formula for achieving science This process is simple.

Microwave radiation are typically emitted by a magnetron. The polarized molecules such as oil, water, grease, etc in the respective food stuff are excited to produce heat. The uniform excitation, the simultaneous and complete heating of foodstuffs. Warm the food quickly and efficiently has been included in the microwave. Art of food preparation has been revolutionized by microwave ovens since their inception in the market in the decade 1970.

First introduced to the world by Percy Spencer, while in the midst of building magnetrons for radar, microwave ovens have already taken the world by storm. The microwave oven cooked its first food as popcorn and later came the egg.

Raytheon, the company for which Spencer had worked on radar and had discovered the phenomenon of micro-wave, has filed a patent October 8, 1945. They arrived with the first microwave oven Journal, the Radarrange. It was huge, consumption of almost 3000 watts and weighing almost 340 kg. Later, in business models have been introduced that consumed about 1600 watts and sold for about $ 2000 to $ 3000. The first model popular in his country and was again produced by Raytheon. Radarrange counter in 1967 was valued at $ 495 and has been the authors of the furnace models Microwave in popular use today.

In 1975, sales volumes for microwave ovens is greater than 1 million, but were less than Japan. Been here are the most economical methods of construction for significant market penetration in the microwave model at home. The rapid decrease in prices of microprocessors with the arrival of the technological revolution in the 1980s led to the microwave is a regular event every home in the States U.S. and worldwide. Today, 90% of U.S. households have a microwave, the Chinese company Galanz is the greatest player in the market for the microwave, This represents up to 40% of the microwave oven in the world.

The microwave actually consists of these constituents: high voltage transformer, the source energy for the journey of magnetron, cavity magnetron control circuit with a microcontroller magnetron, waveguide, the firing chamber foods are placed in

Cook foods Microwave outside itself, contrary to popular belief that food is cooked inside out ',' here. Microwaves are absorbed by the tissue of food than any other conventional heat source. The penetration power of microwaves is the only differentiating factor in this case. They have several levels of power of choice that allows the depth and extent of the heating of food stuff which is supposed they are supposed to suffer. Convection ovens now gaining popularity. It is a standard mixture of microwave and convection oven, allowing food to cook crisp and brown again as in convection ovens.

Microwave ovens are generally used for the effective time and again quality cooking in households and industrial applications. Although microwave radiation is not considered harmful to health and are better than conventionally cooked foods, there are still security issues with the microwave classic. Sometimes liquids and improper heating or faults with the magnetron tube can cause explosions and burns that result. Some also have problems with exposure to microwave radiation.

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This article can also be accessed in portuguese from the Article section of page www.polomercantil.com.br/eletrodomestico.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br

Article Source: ArticlesBase.com – Working of Microwave Oven

The frequency of the microwave … Physics problem!?

The generator of microwaves in the figure below microwave can occur at any frequency between 10 GHz and 20 GHz microwaves are covered by a small hole in the pocket of "microwave", which consists advertising = 9 cm long cylinder cooling purposes. (A) Select all the frequencies listed below which has created waves in the microwave cavity. 12.50 GHz 19.17 GHz 15.00 GHz 14.17 GHz 18.33 GHz 15.83 GHz 16.67 GHz 13.33 GHz (b) Select all the frequencies for which the middle is a belly cavity. 12.50 GHz 19.17 GHz 15.00 GHz 14.17 GHz 18.33 GHz 15.83 GHz 16.67 GHz 13.33 GHz

b-responses are the opposite of a) a) 12.50 GHz 15.00 GHz 14.17 GHz 13.33 GHz

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