Fiber optic exit area sensing for gas turbine engine nozzles
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United States of America Patent
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Aug 23, 2022
Grant Date -
N/A
app pub date -
Jun 10, 2021
filing date -
Jun 10, 2021
priority date (Note) -
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Abstract
A gas turbine engine has a fan case exit and an inner core housing exit. At least one of the exits is provided with a fiber optic sensing unit. The fiber optic sensing unit includes a fiber optic sensing member surrounding a circumference of the at least one of the exits. A control is programmed to calculate a nozzle area at the at least one of the exits based upon the displacement of the fiber optic sensing member. The calculated nozzle area is utilized to update nozzle area information at an electronic engine controller for the engine, and the electronic engine controller is programmed to control at least one associated component on a gas turbine engine based upon the updated nozzle area. A method is also disclosed.
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