Patent ID: 9080961
Filing Date: 2015-07-14
Classification: B29B,F26B,G01N

Abstract:
1. A method for detecting water in plastics, comprising the steps of irradiating a plastic of known moisture state with electromagnetic waves of a bandwidth of 50 GHz to 1000 GHz from an oscillating apparatus, measuring remaining electromagnetic waves not absorbed by the plastic to acquire a first measurement value in advance, irradiating the plastic of unknown moisture state or a plastic of unknown moisture state different from the plastic (hereinafter these shall be referred to as the “measured plastic”) with the electromagnetic waves of the bandwidth of 50 GHz to 1000 GHz from the oscillating apparatus, measuring the remaining electromagnetic waves not absorbed by the measured plastic to acquire a second measurement value, and comparing the first measurement value and the second measurement value to compute the moisture state of the plastic of unknown moisture state.