8. Installation precautions for vibration sensors

The best vibration sensor in the world can only provide accurate results under the following conditions:

• it must not alter the response that the vibrating structure would have in its absence;

• it must fully reproduce the movement of the point on the structure where it has been installed.

The first point raises the question of sufficient miniaturization, the fundamental disturbance being the mass of the sensor. The second is the quality of the coupling between sensor and structure.