Invention Grant
- Patent Title: Microwave flow sensor for a harvester
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Application No.: US09976692Application Date: 2001-10-12
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Publication No.: US06606571B2Publication Date: 2003-08-12
- Inventor: James Joseph Phelan , Donald L. Goodrich , Frederick W. Nelson , Mark Rentz
- Applicant: James Joseph Phelan , Donald L. Goodrich , Frederick W. Nelson , Mark Rentz
- Main IPC: G01F100
- IPC: G01F100

Abstract:
A flow sensor for use in a harvester is disclosed. The flow sensor has a microwave transceiver for transmitting a microwave signal and receiving a reflected microwave signal, an in-phase mixer electrically connected to the microwave transceiver for combining the transmitted microwave signal and the reflected microwave signal and outputting an in-phase Doppler signal, a quadrature mixer electrically connected to the microwave transceiver for combining the transmitted microwave signal and a delayed reflected microwave signal and outputting the quadrature Doppler signal, and an electronic circuit electrically connected to the in-phase mixer and the quadrature mixer and having a flow rate output.
Public/Granted literature
- US20030074143A1 Microwave flow sensor for a harvester Public/Granted day:2003-04-17
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