When using Piezoelectric sensors to measure vibration, the sensor must directly contact the machine surface. The more intimate and stiff the contact between sensor and the machine, the better the ability to couple and measure high frequency signals. The sensor should be mounted at a location that minimizes the vibration transmission route from the item being monitored (bearing) through the machine to the sensor. Avoid mounting the sensor on thin sections or vibration-free areas (antinodes).
Mounting Configurations
There are multiple mounting configurations that are used to couple the sensors to the machine surface. Figure 1 illustrates the various types of mounting configurations.
