When calibrating gage blocks or when gaging objects with contact type comparators, local deformation occurs where the probe tip contacts the gaging surface. This deformation results in a measurement error only if the gage blocks or objects being compared are of different materials having different mechanical properties. This document presents formulas and monographs for determining deformation magnitude, and instructions for appling deformation corrections. The formulas and monographs are valid only for spherical probe tips. A method is given for evaluating tip geometry and it is recommended that nonspherical or flawed tips be replaced.
NASA STI/Recon Technical Report N
- Pub Date:
- May 1978
- Measuring Instruments;
- Analysis (Mathematics);
- Elastic Properties;
- Instrumentation and Photography