Understanding Non Repeat - Pneumatic Gauging Probes
It is often necessary to use pneumatic probes because it’s the only way to avoid side loading or to get the tip to a gauging point.
The lines of force are through the centre line of the probe, which helps to ensure good repeatability and a long life in any gauging application.
Tip force can also have a significant effect on repeatability, particularly in the gauging of fragile components such as glass or electrical components.
The tip force on Pneumatic Gauging Probes can, to a large degree, be controlled by the pressure of the air supply.
The gaiter, which can have a significant effect on tip force, is replaced by a shroud on the AT and DT ranges of probes to ensure very low tip forces.
However, they are unsuitable for use in wet or oily environments.