Patent ID: 7313946
Filing Date: 2008-01-01
Classification: G01N

Abstract:
1. A moisture detector comprising: a first temperature sensor formed by enclosing a first semiconductor sensor within a first closed case, for sensing a temperature of a detection target; a second temperature sensor formed by enclosing a second semiconductor sensor within a second closed case, for sensing the temperature of said detection target; heating means enclosed in said second closed case, for generating constant heat to heat said second temperature sensor; storage means for storing information relating to moisture percentage in said detection target in correspondence with a difference value between a value based on a temperature to be sensed by said first temperature sensor and a value based on a temperature to be sensed by said second temperature sensor when heated by said heating means; and processing means for obtaining a difference value between a first value based on a signal output by said first temperature sensor and a second value based on a signal output by said second temperature sensor heated by said heating means so as to obtain information relating to moisture percentage in said detection target from said storage means on the basis of the difference value.