With vibration measurement and monitoring, it is possible to predict when a machine will fail and to schedule maintenance accordingly, to increase safety and reduce costs.
As a result, the use of accelerometers for vibration measurement is increasing more and more. An accelerometer is a sensor that measures the dynamic acceleration of a physical device in the form of voltage, transducers mounted directly in contact with high frequency elements such as rolling element bearings, gearboxes or rotating blades. These versatile sensors can also be used for shock measurements (bursts and failure tests) and slower, low frequency vibration measurements.
They use the piezoelectric effect, which occurs when a voltage is generated on certain types of crystals when they are stressed. The acceleration of the test structure is transmitted to an internal seismic mass of the accelerometer that generates a proportional force in a piezoelectric crystal. This external stress on the crystal then generates a high impedance electrical charge proportional to the applied force and thus proportional to the acceleration.
Advantages of ensuring vibration measurement and analysis:
• Machine fault identification
• Information on the causes of defects
• Location of affected componentes
• Optimization of spare parts logistics
• Planning of maintenance measures
