System and method for measuring vibration on a machine
AssigneePruftechnik Dieter Busch AG
InventorHeinrich Lysen
Life of this patent
Estimating the term…
Abstract
The invention relates to a system for measuring vibration on a machine, with a carrier (14) for placing onto a measuring point (12) of the machine, a sensor (16) arranged on the carrier for detecting vibrations, an arrangement (16, 22, 28, 30) for detecting the electromechanical impedance of the sensor and also a monitoring device (22, 24, 26) for monitoring the current coupling of the carrier at the measuring point by means of evaluating the detected electromechanical impedance. The current coupling is in this case determined from the difference between the currently detected electromechanical impedance and the electromechanical impedance detected for a prescribed optimum coupling of the carrier to the measuring point.
Claims15
A system for measuring vibration on a machine, with a carrier (14) for placing onto a measuring point (12) of the machine, and a sensor (16) arranged on the carrier for detecting vibrations, having an arrangement (16, 22, 28, 30) for detecting the electromechanical impedance of the sensor and also a monitoring device (22, 24, 26) for monitoring the current coupling of the carrier at the measuring point by means of evaluating the detected electromechanical impedance, the current coupling being determined from the difference between the currently detected electromechanical impedance and the electromechanical impedance detected for a prescribed optimum coupling of the carrier to the measuring point.
A system for measuring vibration on a machine, wherein:
- a vibration sensor is placed with a carrier (14) onto a measuring point (12) of the machine;
- the electromechanical impedance of the sensor is detected;
- and
- the current coupling of the carrier at the measuring point is monitored by means of evaluating the detected electromechanical impedance, the current coupling being determined from the difference between the currently detected electromechanical impedance and the electromechanical impedance detected for a prescribed optimum coupling of the carrier to the measuring point.
Dependencies are inferred from the claim text.