| 摘要 |
There is disclosed a method of estimating moisture content in a material involving directing a first frequency (f<SUB>1</SUB>) signal and a second frequency (f<SUB>2</SUB>) signal through a material, determining a first absolute phase shift (phi<SUB>1</SUB>) of the frequency signal and a second absolute phase shift (phi<SUB>2</SUB>) of the second frequency signal, transforming phi<SUB>1 </SUB>to a first corrected absolute phase shift (phi<SUB>1c</SUB>) and phi<SUB>2 </SUB>to a second corrected absolute phase shift (phi<SUB>2c</SUB>) in accordance with an expected relationship between phi<SUB>1 </SUB>and phi<SUB>2</SUB>, and estimating moisture content from phi<SUB>1c </SUB>and phi<SUB>2c</SUB>.
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