Abstract: A compact vibration meter has at least two vibration sensors which sense vibrations at regions of a support element, the detected vibrations being adjusted to the frequency range to be sensed by the respective sensor.

Abstract: A device for detecting vibrations on a machine (12) with at least one machine element (11) which rotates around an axis of rotation, with a measurement head (1) for detachable coupling to at least one measuring point (13, 61, 62, 63) of the machine, with a sensor arrangement (2) for measuring vibrations in at least one sensor measurement direction which is fixed with respect to the measurement head, and an arrangement (42, 43, 44, 45) for detecting the current three-dimensional orientation of the sensor measurement direction, with at least one gyroscope (42, 43, 44), and an arrangement (46) for assignment of vibration measurement and the corresponding orientation of the sensor measurement direction during the respective vibration measurement.

Abstract: A device for machine diagnostics, with a vibration sensor (12) for detecting vibration signals on the machine (10), a unit (14) for conditioning the vibration signals, an A/D converter (16) for digitizing the conditioned vibration signals, a data processing unit (20) for splitting the digital signals into at least two frequency ranges, the data processing unit being made to scale the signal for each frequency range to an amplitude resolution which is less than the amplitude resolution of the A/D converter, and an evaluation unit (30) for further evaluation of the split signals.

Abstract: A device for machine diagnostics, with a vibration sensor (12) for detecting vibration signals on the machine (10), a unit (14) for conditioning the vibration signals, an A/D converter (16) for digitizing the conditioned vibration signals, a data processing unit (20) for splitting the digital signals into at least two frequency ranges, the data processing unit being made to scale the signal for each frequency range to an amplitude resolution which is less than the amplitude resolution of the A/D converter, and an evaluation unit (30) for further evaluation of the split signals.