Frisbee Gauge
Product Details
The Standard Frisbee gauge is made up of an anodised collecting dish with a welded tube which then connects to the bottle via a plastic tube.
The full kit consists
1 x Frisbee dish
1 x foam pad
1 x collapsible tripod
1 x plastic tube
2 x bottles
The Frisbee is nominally used in long-term monitoring. ( minimum of six months )
As the bottles fills up it takes with it any dust suspended in the atmosphere that has deposited in the Frisbee head. The bottles contents are filtered through a pre weighed filter to get a weight
As imple calculation then applies to determine in the dust concentration. Calculate the mean rate of dust deposition (undissolved solids) as:
(W2-W1) x 24.7 mg m-2 day-1
T
where W1 = initial dry weight of filter (in mg)
W2 = final dry weight of filter plus dust (in mg) and
T = length of exposure period (in days)
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