Method for determining waveguide temperature for acoustic transceiver used in a gas turbine engine
US9945737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2213/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining waveguide temperature for at least one waveguide of a transceiver utilized for generating a temperature map. The transceiver generates an acoustic signal that travels through a measurement space in a hot gas flow path defined by a wall such as in a combustor. The method includes calculating a total time of flight for the acoustic signal and subtracting a waveguide travel time from the total time of flight to obtain a measurement space travel time. A temperature map is calculated based on the measurement space travel time. An estimated wall temperature is obtained from the temperature map. An estimated waveguide temperature is then calculated based on the estimated wall temperature wherein the estimated waveguide temperature is determined without the use of a temperature sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.