Patent ID: 6854342
Filing Date: 2005-02-15
Classification: G01F

Abstract:
1. A turbine flow meter that measures the flow of a material, comprising: an outer housing comprised of a low permeable material forming an inlet port on one end of said outer housing and an outlet port on the other end of said outer housing; a shaft supported inside said outer housing along an axis parallel to said outer housing; a turbine rotor mounted on said shaft, wherein said turbine rotor rotates when the material flows through said inlet port; an orifice contained in said outer housing that forms a first pickup port wherein a first end of said orifice extends outward to the outer surface of said outer housing, and said second end of said orifice extends down to a higher permeable inner housing proximate to said turbine rotor; and a first pickup coil that is mounted within said first pickup port and excited by a signal received through said inner housing from said turbine rotor as said turbine rotor rotates.