Microwave sensor for measuring a dielectric property of a product
AssigneeTrutzschler GmbH & Co. KG
InventorsSteffen Peters, Reinhard Knöchel, Wolfgang Taute, Claas Döscher
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Abstract
The application relates to a microwave sensor for measuring a dielectric property, especially the density and/or moisture content of a product, having a microwave resonator, wherein a product introduced into the resonator interacts with a resonant microwave field generated in the resonator in order to determine suitable measured quantities, and is characterized in that at least two half-waves of the electric field are formed in the resonator in one direction, the product feed being effected in at least one region of high field intensity of one of the half-waves of the electric field.
Claims34
A microwave sensor for measuring a dielectric property of a product comprising:
- a microwave resonator chamber;
- a microwave field generating device for generating a microwave field in the resonator chamber;
- and
- a pathway adapted to guide the product through the resonator chamber such that the product is exposed to the microwave field;
- wherein the resonator chamber is adapted for at least two half-waves of the electric field to be formed in the resonator chamber, and the pathway is arranged to guide the product through at least one region of high field intensity of said half-waves of the electric field.
A microwave sensor for measuring a dielectric property of a product in a spinning preparation machine, the microwave sensor comprising a microwave resonator chamber having a pathway extending therethrough, and a resonator adapted to form a resonant microwave field, wherein a product introduced into the pathway interacts with the resonant microwave field in order to determine suitable measured quantities, further wherein at least two half-waves of the microwave field are formed in the resonator in one direction, and the pathway guides the product through at least one region of high field intensity of one of the half-waves of the electric field.
Dependencies are inferred from the claim text.