In the water content measurement technology which uses

摘要

PROBLEM TO BE SOLVED: To provide a moisture measuring sensor and a moisture measuring apparatus for instantly and accurately measuring the moisture in an object to be measured. ;SOLUTION: The moisture measuring sensor 20 of the moisture measuring apparatus comprises a microstrip resonator antenna 21 for permeating an electromagnetic field into the object to be measured, a transmission circuit board 22, and a CPU control board 26. A signal that has permeated the object to be measured is received by the microstrip resonator antenna 21, and the diode impedance of a detection diode as a detection load being mounted into the transmission circuit board 22 is increased, thus obtaining output in proportional with the amount of water.;COPYRIGHT: (C)2003,JPO