Calibration verification

摘要

This document generally describes technology to verify the calibration of a materials testing system, such as a compact tension testing system. The calibration of a materials testing system can be verified based on the results generated from the materials testing system running one or more tests on a calibration specimen with one or more known characteristics.

主权项

1. A method for verifying calibration of a materials testing system, the method comprising:
obtaining first information that indicates, at least, an energy characteristic of a calibration specimen, the energy characteristic defining a relationship between force and distance for the calibration specimen, wherein the calibration specimen is comprised of a material with at least a threshold level of elasticity; receiving, at a computational unit, results from a test run on the calibration specimen by the materials testing system, wherein the results are based on force and distance measurements taken by the materials testing system during the test, the test applying one or more loads to the calibration specimen that are within an elastic region of the material comprising the calibration specimen; determining, by the computational unit, whether one or more measurement devices of the materials testing system are calibrated within a threshold tolerance based on a comparison of (i) the energy characteristic of the calibration specimen and (ii) the results of the test run on the calibration specimen by the materials testing system; and outputting, by the computational unit, second information that indicates whether the one or more measurement devices of the materials testing system are calibrated within the threshold tolerance.