| 摘要 |
In a method for initiating protective measures on rapidly running rotary machines upon the occurrence of impermissible vibrations, or other disturbances which cause vibrations, the vibrations are measured as measured variables essentially at the bearings of the rotors or derived values. In a first relatively long time interval (t1) a number of measured data of this measured variable are recorded and conditioned using an equalizing function. In a second, relatively short time interval (t2) the measured data of the same measured variable which are current in this time interval are recorded. Thereafter, these current measured data are compared with the conditioned measured data of the relatively long time interval (t1) and, depending on the result of the comparison, a monitoring signal corresponding the result, or an emergency shutdown signal is triggered.
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