Method for contactless detecting of vibrations and rotary machine with acquisition of vibration signals

摘要

The invention relates to a method for contactless detection of vibrations of the blades (14) of a rotor in a rotary machine (10), in addition to a rotary machine comprising a housing (11) and a rotor (12) which is accommodated in said housing (11). The rotor (12) is provided with a plurality of blades (14) which are disposed side by side. According to the invention, infrared radiation emanating from the blades (14) enables the vibrations of the blades to be permanently monitored at high temperatures.