A new kind of solid moisture transducer is invented to measure solid moistures
based on the principle of heat transfer.It measures the moisture with the difference of transducer radiant heat which is caused by the different humidity of the solid materiel.The new kind of solid moisture transducer can produce self-heat.The time for the heat-sensitivity resistance rising and falling temperature is difference when the solid materiel has different moisture.The experiment proves that the precision of transducer is 5 %.As a low cost solid moisture transducer