Sensors for measurement compression forces. With “donut” shape, the force is applied to the centre.
The force may be applied in a central thread on a pivot or a central hole. This type of sensor requires the mechanical assembly of the system.
-Dimensionally by a side, either by the external dimensions of the sensor or the area where the force is applied.
-Depending on the type of load, either static or dynamic.
-Depending on the sensor being piezorresistivo (like load cells) or piezoeléctrico (by deformation of a quartz crystal).
-By working conditions. Humidity, temperature, vibrations, etc.