Microwave ovens: mapping the electrical field distribution
Ng, K.H.
Medical Laboratory Sciences 48(3): 189-192
1991
ISSN/ISBN: 0308-3616 PMID: 1787775 Document Number: 373093
Uniformity of electric field intensity of microwaves within the microwave oven cavity is necessary to ensure even load-heating, and is particularly important in pathology procedures where small volume irradiation is carried out. A simple and rapid method for mapping electric field distribution, using reversible thermographic paint, is described. Spatial heating patterns for various positions, and the effects of introducing dummy loads to modify heating distributions, have been obtained for a dedicated microwave processor, and comparison made with a domestic microwave oven.