Three-dimensional standing waves in a microwave oven

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Author list: Kamol S., Limsuwan P., Onreabroy W.

Publisher: American Association of Physics Teachers

Publication year: 2010

Journal: American Journal of Physics (0002-9505)

Volume number: 78

Issue number: 5

Start page: 492

End page: 495

Number of pages: 4

ISSN: 0002-9505

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77953496211&doi=10.1119%2f1.3329286&partnerID=40&md5=b8dd98eacd58ece7e679a443dcd01747

Languages: English-Great Britain (EN-GB)

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Abstract

A microwave oven operating at a frequency of 2.45 GHz was designed for demonstrating three-dimensional standing waves. The three-dimensional standing wave patterns formed on cobalt chloride paper placed at the center of the oven chamber were examined. The images on the cobalt chloride paper corresponding to antinodes of the standing waves were recorded by a digital camera after turning on the microwave oven. The results show that the numbers of antinodes of the standing waves in each plane agree with those of the theoretical calculation of the electric field distribution in the oven chamber. ฉ 2010 American Association of Physics Teachers.

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