Panasonic NE-l0547 Reflection, Transmission, Absorption, Radiolnterference, o - rcr o5 Pe --rvrs

Microwavesare a form of high frequencyradiowaves similar to those used by a radioincludingAM; FM and CB. They are, however,much shorterthan radiowaves;approximatelytive incheslong.Electricityis converledinto microwaveenergy by the magnetrontube. Fromthe magnetrontube, microwave energyis transmittedand absorbed.

Reflection

Microwavesare reflectedby metaljust as a ball is bounced otf a wall.A combinationof stationary(interiorwalls) and rotatingantenna,locatedunderneaththe bottom shelf assure that the microwavesare well distributedwithinthe oven cavity to produceeven heatingor cookingof foods.

Transmission

Microwavespassthroughsome materialssuch as paper, glassandplasticmuchlikesunlightshiningthrougha window Becausethese substancesdo not absorbor r€tlectthe microwaveenergy,they are ideal materialstor microwave oven heatinocontainers.

Absorption

Duringheatlng,microwaveswillbe absorbedby tood.They oenetrateto a deoth of about % to 1'l-inches.Microwave energy excitesthe moleculesin the food (especiallywater,fat and sugarmolecules),and causesthemto vibrateat a rateof 2,450,000,000timesper second.Thisvibrationcauses lriction,and heatis producedjustas you willfeelheat producedil youvigorouslyrubyourhandstogetherThe. internalheatingof largerfoodsis doneby conductionThe. heatwhichis producedby frictiontravelsby conductionto the center of the food. Foods also continueto heat by conduction duringstandingtime. Becausemicrowavesdissipate,muchlikesunlightas it reachesthe Earth'ssurface,they are not stored in food.

Radiolnterference

1.Operationof the microwaveovenmaycauseinterferenceto your radio,TV or similarequipment.

2.When thereis interference,it may be reducedor eliminated by takingthe followingmeasures:

a. Cleandoorand sealingsulacesof the oven. SeeCare of YourMicrowaveOvenfoundon page 18.)

b. Placethe radio,TV, etc, away from the microwaveoven

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c. Use a properlyinstalledantenna,to obtainstronger signalreception.

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