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A method of generating, for an aircraft, a total air temperature compensated for recovery or deicing heater error includes measuring a total air temperature with a total air temperature probe. A local angle of attack for the total air temperature probe is determined. Then, a corrected total air temp

A method of generating, for an aircraft, a total air temperature compensated for recovery or deicing heater error includes measuring a total air temperature with a total air temperature probe. A local angle of attack for the total air temperature probe is determined. Then, a corrected total air temperature, compensated for recovery or deicing heater error, is generated as a function of the measured total air temperature and the determined local angle of attack for the total air temperature probe.

대표청구항 ▼

A method of generating, for an aircraft, a total air temperature compensated for recovery or deicing heater error includes measuring a total air temperature with a total air temperature probe. A local angle of attack for the total air temperature probe is determined. Then, a corrected total air temp

A method of generating, for an aircraft, a total air temperature compensated for recovery or deicing heater error includes measuring a total air temperature with a total air temperature probe. A local angle of attack for the total air temperature probe is determined. Then, a corrected total air temperature, compensated for recovery or deicing heater error, is generated as a function of the measured total air temperature and the determined local angle of attack for the total air temperature probe. or more wavelengths, the optical device comprising: a planar photonic crystal structure having a structural symmetry, the planar photonic crystal structure including columnar holes arranged in an array having a pitch; a defect waveguide formed in the planar photonic crystal structure, the defect waveguide including a first waveguide segment and a second waveguide segment; and a dimensional actuating device coupled to the planar photonic crystal structure, wherein the optical signal propagates in the defect waveguide, and actuation of the dimensional actuating device changes a dimension of the planar photonic crystal structure, such that the distribution of the optical signal between the first waveguide segment and the second waveguide segment is modified. 2. The optical device of claim 1 wherein the actuation of the dimensional actuating device changes the pitch of the planar photonic crystal in at least one dimension. 3. The optical device of claim 1 wherein the actuation of the dimensional actuating device changes the shape of the columnar holes of the planar photonic crystal. 4. The optical device of claim 1 wherein the actuation of the dimensional actuating device changes the structural symmetry of the planar photonic crystal. 5. The optical device of claim 1 wherein the dimensional actuating device is a piezoelectric actuator. 6. The optical device of claim 1 wherein the dimensional actuating device is a mechanical actuator. 7. The optical device of claim 1 wherein the defect waveguide includes an input waveguide segment having an input end and a junction end; a first output waveguide segment having a junction end and an output end, the junction end being coupled to the junction end of the input waveguide segment; a second output waveguide segment having a junction end and an output end, the junction end being coupled to the junction end of the input waveguide segment and the junction end of the first output waveguide segment, and wherein the optical signal enters the defect waveguide at the input end of the input waveguide segment; and actuation of the dimensional actuating device changes the distribution of the optical signal between the first output waveguide segment and the second output waveguide segment. 8. The optical device of claim 7 wherein the optical signal propagates from the input waveguide segment to the first output waveguide segment when the dimensional actuating device is unactuated, and propagates from the input waveguide segment to the second output waveguide segment when the dimensional actuating device is actuated to a fully switched state. 9. The optical device of claim 7 wherein the first output waveguide segment is positioned at an angle of about 90° to the second output waveguide segment. 10. The optical device of claim 1 wherein the defect waveguide includes a first waveguide segment having an input end, an output end, and a coupling region, and a second waveguide segment having an input end, an output end, and a coupling region; wherein the first waveguide segment and the second waveguide segment are evanescently coupled to one another in their coupling regions, and substantially uncoupled otherwise; and wherein the optical signal enters the defect waveguide at the input end of one of the waveguide segments; and actuation of the dimensional actuating device changes the distribution of the optical signal between the output end of the first waveguide segment and the output end of the second waveguide segment. 11. The optical device of claim 10 wherein the optical signal entering the defect waveguide at the input end of the first waveguide segment emerges from the output end of the first waveguide segment if the dimensional actuating device is unactuated, and from the output end of the second waveguide segment if the dimensional actuating device is actuated to a fully switched state. 12. The optical device of claim 1 wherein the defect waveguide includes an input en