Magnesium oxide-coated slides

Experimental Comparison with Other Techniques. In order to check that the experimental setup shown in Figure 3 met the constraints formulation given in Equation 2, two alternate techniques were used to measure droplet size during selected tests. These were a magnesium-oxide (MgO) coated slide collection method and a single-beam Mie scattering technique. 

Magnesium Oxide Method for Drop Size Measurement. Droplet size may be determined from the impression made by a drop when collected on a coated slide. A layer of MgO has been used commonly as a collecting medium. Drops form a crater in the MgO on impaction. Based on past cahbrations (3, 4), the-diameter of this crater, as determined from microscopic observation, can then be related to droplet size. 

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