Methods of resolution enhancement of laser diameter measuring instruments

Yury A. Chursin, Evgeny M. Fedorov

Результат исследований: Материалы для журналаСтатьярецензирование

11 Цитирования (Scopus)

Аннотация

The paper presents the implementation of diffraction and spectral analysis methods allowing 1 μm resolution enhancement of optical instruments intended for measurements of such round wire materials as cables, wires, cords, etc. with diameters exceeding the wavelength (∼0.5 mm and large). The transformation function suggested allows detecting geometrical boundaries of object's shadows that are used to calculate its diameter independently from its location in the gaging zone. The real-time detection algorithm is described for diffraction extreme values in the analog video signal produced by the chargecoupled device sensors. A method of additional improvement of resolution is shown on the basis of spectral analysis.

Язык оригиналаАнглийский
Страницы (с-по)86-92
Число страниц7
ЖурналOptics and Laser Technology
Том67
DOI
СостояниеОпубликовано - 2015

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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