Page Banner

United States Department of Agriculture

Agricultural Research Service

Title: System for measuring the velocity of fluid streams using a pressure transducer
See also: US Patent Office Full Record

Plains Area
  Lubbock, Texas

Patent Number: 7254493
Docket Number: 3705
Serial Number: 11304314
Date Patented: 08/07/2007


Summary: The invention consists of a pressure transducer based air velocity sensor that has been optimized for use in metal ducts. The fluid flow velocity is determined by measuring the propagation delay of a direct path pressure wave signal transmitted through the fluid as a function of a frequency difference rather than as a phase delay measurement. This system electronically removes multi-path signals from the measured signal, thereby obviating the requirement for installation calibration.

Patent Status: Patent issued on August 7, 2007. Link at USPTO filed under patent title “Pressure transducer based fluid velocity sensor.”


Mathew G Pelletier
Cotton Production and Processing Research
ROUTE 3, BOX 215
LUBBOCK, TX, 79403
Phone: (806) 746-5353
Fax: (806) 744-4402


Last Modified: 10/1/2015
Footer Content Back to Top of Page