Hot film anemometer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 27, 1990
Grant Date -
N/A
app pub date -
Oct 3, 1988
filing date -
Oct 3, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An anemometer comprising: orifice plate adapted to be disposed within a flow stream, including an orifice; a thin film bridge, spaced from and disposed downstream of the orifice plate for directing the stream exiting the orifice in a direction perpendicular to the flow direction and for insulatingly suspending a plurality of resistive elements within a portion of the flow stream exiting the orifice. The plurality resistive elements comprising a first resistive element conformally shaped to the orifice, and a second resistive element substantially circumferentially disposed about the first resistive element, the second resistive element comprising a sense resistor having a resistance which changes with flow and a circuit formed in part by the plurality of resistive elements, forming a sensing network therewith for generating a signal indicative of the flow stream.
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