Compressive force can be measured by using a Load Cell or, if this is not possible due to size or location, can be measured by applying strain gauges directly to the unit under test.
A key consideration when selecting a load cell would be to determine the presence of any likely side forces that may be applied to the load cell. Consideration has to be give to the side forces that may occur when the unit under test buckles or fails.
If using strain gauges, the decision to use quarter bridge, half bridge or full bridge configuration will depend on the required accuracy and stability with temperature.
For more information, refer to the Load Cell application or the Strain Gauge application, by following the links on the right side of the page.