Measurement of bladed rotors
US9267959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2012 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Dec 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/2886
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Measurement of bladed rotors and, more particularly, speed measurement of bladed rotors in a turbine engine using microwave probes is described. In one embodiment, an apparatus for measuring bladed includes a microwave sensor that radiates a microwave signal toward a bladed rotor and receives a reflected microwave signal from the bladed rotor, a radio frequency module that generates the microwave signal radiated by the microwave sensor and down-converts the reflected microwave signal into a down-converted signal, and a main processing module configured to generate an output pulse train signal representative of a speed of the bladed rotor based on the down-converted signal. In another embodiment, a method for measuring bladed rotors is described including radiating a microwave signal, receiving a reflected microwave signal, down-converting the reflected microwave signal, and generating an output pulse train signal representative of a speed of a bladed rotor based on the down-converted signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.