首页>
外国专利>
System and method of monitoring blade vibration in a turbine engine
System and method of monitoring blade vibration in a turbine engine
展开▼
机译:监测涡轮发动机中的叶片振动的系统和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A rotor blade measurement system includes a microwave source (26) and a probe (28). A directional coupler (34) is attached to the source (26) and the probe (28). A detector (36) is attached to the directional coupler (34). The probe directs a microwave signal (30) toward a rotor (20) such that during rotation the rotor blade (22) will pass through the path of the microwave signal (30). As the rotor blade (22) passes, the microwave signal (30) is reflected back to the probe (28). The directional coupler (34) separates the original microwave signal (30) and the reflected signal (32). The detector (36) then determines the energy level of the reflected signal (32). As each rotor blade (22) passes the microwave signal (30) it generates a reflected signal that can be analyzed over time. From the length and shape of the waveform of the reflected signal (32) the amount of twisting and flutter in a rotor blade can be determined.
展开▼