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    • 1. 发明授权
    • Steam turbine and method of measuring the vibration of a moving blade in a flow passage of a steam turbine
    • 蒸汽轮机和测量蒸汽轮机的流动通道中的动叶片的振动的方法
    • US06761528B2
    • 2004-07-13
    • US10169147
    • 2002-10-08
    • Frank Woditschka
    • Frank Woditschka
    • F01D2500
    • G01H1/006
    • The invention relates to a steam turbine (3) comprising an optical measuring system (60) for measuring a moving blade vibration. A transmitter (55) produces a light beam (61) which strikes the moving blades (27, 29, 31, 33) and is reflected by these into a receiver (57). By providing that the transmitter (55) is separated from the receiver (56), the invention achieves a measuring angle that actually reduces the scattered light effect of the steam enough to enable reliable optical measurements of the blades vibration. The invention also relates to a method for measuring the vibration of a moving blade (33) in a flow channel (19, 21, 23, 25) of a steam turbine (3).
    • 本发明涉及一种蒸汽轮机(3),其包括用于测量动叶片振动的光学测量系统(60)。 发射器(55)产生撞击动叶片(27,29,31,33)的光束(61),并被它们反射到接收器(57)中。 通过提供发射器(55)与接收器(56)分离,本发明实现了一种测量角度,其实际上减小了蒸汽的散射光效应,足以使得叶片振动的可靠的光学测量。 本发明还涉及一种用于测量蒸汽轮机(3)的流动通道(19,21,23,25)中的活动叶片(33)的振动的方法。