ZHAO Bin, YAN Wei-bin. Measurement of wire diameter by two point sources projection[J]. Editorial Office of Optics and Precision Engineering, 2003,(2): 171-175
ZHAO Bin, YAN Wei-bin. Measurement of wire diameter by two point sources projection[J]. Editorial Office of Optics and Precision Engineering, 2003,(2): 171-175DOI:
In the new wire diameter online measurement system proposed
laser diode was used as the point light source to emit spheric waves passing through a wire. The diameter of a thin wire was obtained by measuring the shadow in the Fresnel diffraction zone. Two point sources at some distance were used to generate two shadows of the same wire at the same time and the deviation of the wire can be determined by the distance between the two shadows so that the wire diameter can be calibrated.
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