INTERFEROMETRIC MEASUREMENT OF INJECTION NOZZLES USING ULTRA-SMALL FIBER-OPTICAL PROBES |
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| Tilo Pfeifer , Robert Schmitt , Niels König, Guilherme Francisco Mallmann |
- Abstract:
- The measurement of boreholes with diameters smaller than 500 microns is a demanding task, which cannot be coped with state-of-the-art production metrology. Within this paper, the set-up of a miniaturized fiber probe with a diameter of 80 microns is presented. The probe is used for low-coherence interferometry for the highly precise measurement of form deviations of small boreholes. Measurements, which have been conducted in nozzles, are presented. The results prove the potential of the fiber-optical sensor for the quality inspection of high-precision parts such as injection nozzles for common-rail diesel engines.
- Keywords:
- roundness, fiber-optic sensor, low-coherence interferometry, miniaturization
- Download:
- IMEKO-TC2-2010-04.doc
- DOI:
- -
- Event details
- IMEKO TC:
- TC2
- Event name:
- TC2 Symposium 2010
- Title:
- 19th Symposium on Photonic Measurements
- Place:
- Hangzhou, CHINA
- Time:
- 11 September 2010 - 13 September 2010