chapter  28
Bore-Gaging Displacement Sensors
Pages 16

Holes, also known as bores, in general are one of the most common features of mechanical component. In precision applications, eccentricity and diameter of the holes directly relate to the performance and even service life of the component. Deviation from the permissible tolerances can impede operation and result in premature failure of the system, It is thus important to inspect and validate the dimensional accuracy, such as the diameter, shape, and position (e.g., eccentricity) of the holes. To do these, many state-of-the-art hole inspection gages are available.