Thermal measuring and testing – Temperature measurement – With fluid flow deflector
Reexamination Certificate
2005-12-13
2005-12-13
Gutierrez, Diego (Department: 2859)
Thermal measuring and testing
Temperature measurement
With fluid flow deflector
C374S142000
Reexamination Certificate
active
06974250
ABSTRACT:
The present invention relates to providing a temperature sensor that is mountable on an aircraft and includes a thermometer or temperature sensing element for sensing temperature of airflow. A heater is provided on the probe to bias the temperature sensed by the thermometer or temperature sensing element, in a manner such that the temperature measured is at a substantially known offset from the static temperature surrounding the temperature sensor. Control of the offset can be achieved by regulating airflow or heat provided. The heating effect is controlled to be a substantially equal and opposite match to the decreased total temperature resulting from lower airspeed or decreased airflow. In this manner, the thermometer or temperature sensing element will essentially operate at a fixed offset above static temperature, that is the temperature in undisturbed air in which the aircraft is operating, over a fairly wide range of flow rates.
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patent: 4403872 (1983-09-01), DeLeo
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patent: 6609825 (2003-08-01), Ice et al.
patent: 2004/0095984 (2004-05-01), Severson
International Search Report.
Gutierrez Diego
Pruchnic Jr. Stanley J.
Rosemount Aerospace Inc.
Westman Champlin & Kelly
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