Quality Vision International


Proper calibration is essential to assuring accuracy and traceability of measurements. QVI builds calibration tools into our measuring systems and software to enable comprehensive, traceable calibration in the factory and in the field.

Field of View Calibration is verified using one of several available QVI field of view of magnification artifacts. Routines are built into the measuring software to automatically measure these standards and apply correction factors to calibrate center pixel and size measurements.

Other sensors, such as lasers, touch probes, and white light sensors, each have their own appropriate calibration standards and software routines.

E2 XY area calibration is performed using certified stage calibration reticles. These artifacts are typically glass with chrome lines and intersections at calibration locations. Float glass grids are ideal for field calibration because they are portable, soak to the ambient temperature quickly, and can be certified by a number of accredited laboratories. For very large travel machines, grid reticles can be placed in multiple, overlapping positions, or linear line scales can be used which are more easily certified to low uncertainty. Automatic routines perform baselining, calibration and verification runs, and provide detailed reports.

E3 XYZ volumetric calibration is performed using one of three ISO 17025 certified methods: linear line scales, dot plates, and 3D laser interferometer are all available methods used routinely at QVI. Quality Vision Services also offers field calibration and verification of E3 volumetric accuracy for QVI and other makes of measurement systems and machine tools as a service.

QVI's Portal software, which is standard on many models, includes an Independent Calibration Engine (ICE) which is wizard based, guiding the technician step by step. ICE calibration can be applied to any number of different measurement software programs which might be resident on a machine.