Virtual Distances Methodology as Verification Technique for AACMMs with a Capacitive Sensor Based Indexed Metrology...

Area of Science:

• Metrology
• Mechanical Engineering
• Instrumentation

Background:

• Articulated arm coordinate measuring machines (AACMMs) require precise verification for accurate dimensional measurements.
• Traditional verification methods often involve numerous physical gauges and extensive setup, leading to inefficiencies.

Purpose of the Study:

• To present a novel verification procedure for AACMMs using an indexed metrology platform (IMP).
• To demonstrate the generation of virtual reference distances for streamlined AACMM calibration.

Main Methods:

• Development of a capacitive sensor-based IMP with a mathematical model.
• Generation of virtual points, gauges, and distances using a fixed ball bar gauge.
• Performing AACMM measurements from six rotating positions on the IMP.

Main Results:

• The IMP successfully generated an unlimited number of virtual reference distances.
• The virtual distance methodology proved suitable for AACMM verification.
• Optimized testing time, reduced gauge requirements, and minimized spatial needs were achieved.

Conclusions:

• The virtual distances methodology offers an efficient and effective alternative for AACMM verification.
• The IMP-based approach enhances the practicality and accessibility of metrology procedures.
• This method significantly improves the calibration process for articulated arm CMMs.