Patent ID: 11879995
Assignee: BRUNSON INSTRUMENT COMPANY
Field: Measurement (Instruments)
Classification: CPC G  F | IPC F  G

Claim 17:
18. A method of calibrating a laser tracker, the method comprising:
positioning an artifact relative to the laser tracker, the artifact having an alignment mirror coupled to a first end of the artifact and an alignment laser coupled to a second end of the artifact;
orienting the artifact in a first configuration;
directing a beam of light from the alignment laser towards a reflective surface of the alignment mirror so that the beam of light reflects off of the reflective surface of the alignment mirror;
adjusting the alignment mirror so as to direct the reflected beam of light at an aperture of the laser tracker;
utilizing a first laser target and alignment mirror to obtain a first measurement that is associated with a position of the first end of the artifact;
utilizing the alignment mirror and one of the first laser target or a second laser target to obtain a second measurement that is associated with a position of the second end of the artifact;
comparing the second measurement with the first measurement so as to determine a first reference length of the artifact
orienting the artifact in a second configuration;
repeating the directing, adjusting, utilizing, and comparing steps so as to determine a second measured reference length of the artifact; and
comparing the second measured reference length with the first measured reference length.