SEMI-AUTOMATED MEASUREMENT OF INJECTION NOZZLES USING FIBER-OPTICAL LOW-COHERENCE INTERFEROMETRY

• Abstract:

  The roundness measurement of boreholes with diameters less than 500 microns is a challenge that cannot be addressed with conventional metrology such as tactile measurement. This paper presents a setup for semi-automated positioning and roundness measurement of boreholes with diameters down to 160 microns using fiber-optical probes and low-coherence interferometry. The results contribute to sophisticated nozzle design and testing of final parts such as common-rail diesel injection nozzles.
• Keywords:

  roundness measurement, common-rail injection, fiber-optic sensor, micro-boreholes, low-coherence interferometry
• Download:

  IMEKO-WC-2015-TC2-025.pdf
• DOI:

  _unreg_wc-2015.025

Event details: