Graticules Optics, Grid (net) .1mm squares Surface Chrome Image # NE34

Squared grids can be used in particle size analysis as simple technical aids where sophisticated image analysis systems are not required. The areas of the particles to be measured can be estimated by simply counting the number of squares occupied by those particles. If is necessary to estimate fractions of a square or make a rule (e.g. count as a square all partly covered squares at the left and upper side of the square). This method would only be useful for a fairly crude estimation of a large diameter. For more detailed optical analysis it is advisable to use a specialized reticle such as those on the Particle Size Analysis page.

Grid (net) 0.1 mm squares, surface chrome image.

Pattern NE34: