Dielectric apparatus and method utilizing resonance for humidity measurement
AssigneeTDK Electronics Co., Ltd.
InventorsTaro Miura, Takahiro Yamamoto
Life of this patent
Estimating the term…
Abstract
Apparatus for humidity measurement employing a dielectric resonator consisting essentially of a metallic guard, a solid dielectric material, an input antenna and an output antenna. Method of measuring humidity comprising feeding a microwave energy of swept frequencies to the input antenna of said appratus, recovering said energy as a microwave power from the output antenna, and then determining the humidity of the gas through which the microwave energy travels from one antenna to the other, the value of humidity being based on the frequency characteristic of said microwave power.
Claims9
Apparatus for measuring humidity comprising a dielectric material, a shield against electrical radiant energy surrounding said dielectric material, said shield being in the form of a cylindrical sleeve comprising a wire net, and input and output antenna means positioned inside said shield and spaced from said dielectric material.
Dependencies are inferred from the claim text.