Is a
Patent attributes
Patent Applicant
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Daniel Sobek0
Hongfeng Yin0
Kevin Killeen0
Roy D. Rocklin0
Date of Patent
August 30, 2005
0Patent Application Number
106750370
Date Filed
September 30, 2003
0Patent Citations Received
0
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Patent Primary Examiner
Patent abstract
The fluid flow rate within a microfluidic passageway of a microfabricated device is determined by measuring the time-of-flight of a heat pulse coupled into the fluid. Since the propagation velocity of the heat trace is generally slower than the mean flow rate of the flow, additional processing provides the appropriate scaling needed to obtain an accurate fluid flow rate measurement. The scaling factor is based on the geometry of the structure and the thermal properties of the fluid and the materials used for the device.
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