|
Journal of Microwave Power
and Electromagnetic Energy (JMPEE) |
|
|
TITLE |
Microwave Attenuation Measurement
as a Function of Moisture Content and Density of Material for Moisture
Determination over |
|
AUTHORS |
Z. Ma and
S. Okamura 1998 33 1 56-62 |
|
YEAR |
|
|
VOLUME |
|
|
ISSUE |
|
|
PAGES |
|
|
Abstract A method is proposed to measure
the microwave attenuation as a function of moisture content and density for
moisture determination of soft, water-absorptive material. The measurement
result with sawdust shows that the attenuation can be approximated as a
linear function with respect to the density when the moisture content is
constant. For constant density, the attenuation can be approximated as a
quadratic function with respect to the moisture content in low moisture
content range below about 30% (d.b.) and as a linear function with respect to
the moisture content in high range above this moisture content. Key Words: Microwave, Attenuation, Reflection, Density, Moisture |
|