Presentacin de PowerPoint

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Industrial sieves certification
Sieving medium woven wire
Industrial sieve of 1cm nominal aperture

• Range of nominal apertures w 40 mm - 1 cm !
• Range of frame diameters 10 cm - 45 cm
  thousands to millions of apertures !
• Sieve assessment according to different norms
  (ISO 3310, AFNOR X-11-504, BS 410, ASTME 11)
• Measurement of both aperture and wire diameter
  size
• Fully automatic autofocus, control of the XY
  stage

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Industrial sieves certification
z linear axis
3 cameras
xy stage
lighting
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Industrial sieves certification
analysis screen
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Industrial sieves certification
warp (w1) and weft (w2) aperture size
distributions of a sieve
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Industrial sieves certification
40 mm aperture as seen with a microscope
diffraction efects are prominent
20 mm sieve as seen by a camera with less
magnification diffraction causes blurring ?
edge location uncertainty ? unreliable measures
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Industrial sieves certification
Images from a elecronic microscope ? much less
wavelength ? no apparent diffraction
40 mm aperture size
100 mm aperture size