公开(公告)号：US20130068024A1

公开(公告)日：2013-03-21

申请号：US13609863

申请日：2012-09-11

申请人： Qin XU ,  Jonathan GEISHEIMER ,  Gérald EGGER ,  Maddalena VIOLETTI ,  Anja SKRIVERVIK FAVRE

发明人： Qin XU ,  Jonathan GEISHEIMER ,  Gérald EGGER ,  Maddalena VIOLETTI ,  Anja SKRIVERVIK FAVRE

IPC分类号： G01M15/14 ,  G01H13/00

CPC分类号： G01B7/14 ,  G01B15/00 ,  G01N29/14

摘要： A device and a method for monitoring the operational state of rotor blades of a turbine from a position facing the blade tip of a passing rotor blade: A wavesource generates an electromagnetic wave and a wave guide directs the wave towards the blade tip. The waveguide is included in a resonator defining at least one discrete resonance frequency of the wave on the waveguide. An aperture at its front end emits an energy fraction of the wave toward the blade tip. The frequency of the wave is adjusted to the resonance frequency of the resonator at the momentary operation conditions, and a measuring unit compares at least one measurement parameter of the wave directed towards the blade tip with the corresponding measurement parameter of the wave reflected from the blade tip.

摘要翻译： 一种用于从面向通过的转子叶片的叶片尖端的位置监测涡轮机的转子叶片的操作状态的装置和方法：波源产生电磁波，波导将波导引向叶片尖端。 波导包括在限定波导上的波的至少一个离散谐振频率的谐振器中。 其前端的孔朝向叶片尖端发射波的能量分数。 在瞬时操作条件下，将波的频率调节到谐振器的谐振频率，并且测量单元将指向叶片尖端的波的至少一个测量参数与从叶片反射的波的相应测量参数进行比较 小费。

公开(公告)号：US09057596B2

公开(公告)日：2015-06-16

申请号：US13609863

申请日：2012-09-11

申请人： Qin Xu ,  Jonathan Geisheimer ,  Gérald Egger ,  Maddalena Violetti ,  Anja Skrivervik Favre

发明人： Qin Xu ,  Jonathan Geisheimer ,  Gérald Egger ,  Maddalena Violetti ,  Anja Skrivervik Favre

IPC分类号： G01N29/14 ,  G01B7/14 ,  G01B15/00

CPC分类号： G01B7/14 ,  G01B15/00 ,  G01N29/14

摘要： A device and a method for monitoring the operational state of rotor blades of a turbine from a position facing the blade tip of a passing rotor blade: A wavesource generates an electromagnetic wave and a wave guide directs the wave towards the blade tip. The waveguide is included in a resonator defining at least one discrete resonance frequency of the wave on the waveguide. An aperture at its front end emits an energy fraction of the wave toward the blade tip. The frequency of the wave is adjusted to the resonance frequency of the resonator at the momentary operation conditions, and a measuring unit compares at least one measurement parameter of the wave directed towards the blade tip with the corresponding measurement parameter of the wave reflected from the blade tip.

摘要翻译： 一种用于从面向通过的转子叶片的叶片尖端的位置监测涡轮机的转子叶片的操作状态的装置和方法：波源产生电磁波，波导将波导引向叶片尖端。 波导包括在限定波导上的波的至少一个离散谐振频率的谐振器中。 其前端的孔朝向叶片尖端发射波的能量分数。 在瞬时操作条件下，将波的频率调节到谐振器的谐振频率，并且测量单元将指向叶片尖端的波的至少一个测量参数与从叶片反射的波的相应测量参数进行比较 小费。