Reference Spheres and Holders

References for different applications

Ceramic reference spheres are available in different sizes, surface finish quality, sphericity, and connection threads (M6 or M8). Reference sphere sizes are recommended based on styli diameters. For styli less than 1 mm: Reference Sphere 8 mm. For styli 1 to 2 mm: Reference Sphere 15 mm. For styli greater than 2 mm: Reference Sphere 25-30 mm. Other Reference bodies are available for different applications. Ring gauges are used to qualify optical-tactile measuring instruments. Optical gauges are suitable for calibrating the ViScan camera and other 2D sensors. Self-center probing prisms are used to calibrate the rotary table axis of a CMM. Where appropriate, reference bodies are supplied with a certificate of calibration.

Reference kits and cases

Reference spheres and holders can be selected individually, or as a complete kit. The basic components of a kit include a carry case, reference sphere with shaft, reference sphere holder, tools, a certificate, and brief instructions. The appropriate reference sphere holder depends on the size of the measuring machine and the sensors. Compact versions are available for ZEISS DuraMax or the O-Inspect where the measuring volume is limited by a small height and use smaller fasteners on the machine surface. Some carry cases offer space for additional reference spheres, which can be purchased separately.