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Investigation on Modulation-Based Straightness Measurement.

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  • 1Istituto Nazionale di Ricerca Metrologica (INRiM), 10135 Torino, Italy.

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Summary
This summary is machine-generated.

This study introduces InPlanT, a novel non-contacting device for measuring straightness using retroreflected light and a photodiode. The system accurately determines straightness profiles with dedicated software, validated by a coordinate measuring machine.

Keywords:
backscatteringcoordinate measuring machineshigh-index ball lensesmachine toolsretroreflectorsstraightness

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Area of Science:

  • Metrology
  • Mechanical Engineering
  • Optical Measurement

Background:

  • Accurate straightness measurement is crucial in precision manufacturing.
  • Existing methods may be contact-based, limiting applications.
  • A non-contacting approach offers potential advantages in speed and accessibility.

Purpose of the Study:

  • To present a novel non-contacting technique for measuring straightness.
  • To describe the practical realization of this technique in a mechanical device named InPlanT.
  • To evaluate the performance and accuracy of the developed system.

Main Methods:

  • The InPlanT device utilizes a retroreflected luminous signal from a spherical glass target.
  • A photodiode captures the modulated optical signal.
  • Dedicated software processes the signal to derive the straightness profile.

Main Results:

  • The InPlanT system successfully measures straightness profiles.
  • Characterization using a high-accuracy Coordinate Measuring Machine (CMM) was performed.
  • The maximum error of indication for the system was determined.

Conclusions:

  • The developed InPlanT device provides a viable non-contacting method for straightness measurement.
  • The system demonstrates potential for high-accuracy metrology applications.
  • Further validation and application studies are warranted.