Development of Laser and Linear Ccd Sensor-Based Optical Diameter Measurement System


JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, vol.17, no.2, pp.91-98, 2014 (ESCI) identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: 2
  • Publication Date: 2014
  • Doi Number: 10.2339/2014.17.291-98
  • Journal Indexes: Emerging Sources Citation Index (ESCI), TR DİZİN (ULAKBİM)
  • Page Numbers: pp.91-98
  • Keywords: Laser, Linear CCD image sensor, optical diameter measurement, parallel light beam
  • Gazi University Affiliated: Yes


In this study, laser and linear CCD(Charge-Coupled Device) sensor-based optical diameter measurement system was developed. In this way, optical non-contact diameter measurements were carried out with the measurement system. A parallel light beam was created with a laser diode and collimator lens. Linear CCD sensor was placed across of the parallel light beam and illuminated by laser light beam. Parallel light beam into an object was positioned, the object shadow occurs on a linear CCD sensor and pixels of this section were not illuminated. So that the object's diameter can be determined from the shadow. In this study, cylindrical cross-sections of objects was carried out to measure of diameter as contactless. The relative errors of measurement were in the range from %0,24 - %1,34.