Thermal measuring and testing – Calorimetry – Total radiant energy or power measurement
Patent
1988-08-01
1989-03-21
Cuchlinski, Jr., William A.
Thermal measuring and testing
Calorimetry
Total radiant energy or power measurement
324105, 128653, 343703, G01K 1720
Patent
active
048137898
ABSTRACT:
Method and apparatus for use in measuring SAR (Specific Absorption Rate) of persons subject to RF (radio frequency) radiation utilizes twin well calorimetry including first and second gradient-layer type calorimetry boxes the thermally conductive walls and cover of which contain a multiplicity of thermocouples the outputs of which are differentially amplified to provide a differential output. Identical body models that are thermally responsive to RF radiation are contained in the box wells and, after a period of thermal equalization outside the influence of the RF source, one body model is removed from its well and placed in the influence of the radiation in question while the other remains outside the influence. After a predetermined time period the irradiated model is returned to its well and the differential outputs is plotted over a time period. The area under the resultant curve is representative of total absorption from which can readily be calculated SAR.
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Alyea Scott
Cuchlinski Jr. William A.
David Harvey A.
The United States of America as represented by the Secretary of
Townsend William C.
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