Figures & data
FIG. 1 Exploded diagram and photograph of the prototype thermophoretic aerosol sampler.
FIG. 2 Experimental setup for the collection efficiency tests.
FIG. 3 Measured collection efficiency as a function of particle size, flow rate, and applied temperature gradient (device on vs. off). Error bars represent one standard deviation.
FIG. 4 Uniformity and relative levels of particle deposition across the collection surface as a function of particle size. Solid and hatched contours represent positive and negative percent deviations from the average surface count (deposited particles/unit area), respectively (white contours represent locations of average surface counts). The x- and y-axes define the area of the particle collection plate, as shown in the inset. Each image represents an average of three tests.
