| 摘要 |
<P>PROBLEM TO BE SOLVED: To deal a problem that it is desirable to design a method and a system for measuring angular vibration and torsional vibration of a turbomachine because there is a need to provide built-in or on site torsional vibration monitoring due to the further development of the rotordynamic system and because this vibration monitoring needs to be operable continuously or intermittently, or as necessary, and performing without stopping the system during the operation of the turbomachine. <P>SOLUTION: Exemplary embodiments provide a surface of a rotating element with both a phase reference mark and a plurality of additional marks. A proximity probe detects the passage of both the phase reference mark and the plurality of additional marks as they rotate through a detection zone. Both a phase reference signal and a vibration reference signal are generated, which signals are used to calculate lateral and angular (and optionally torsional) vibration of the rotating elements. <P>COPYRIGHT: (C)2011,JPO&INPIT |
