Piche Evaporimeter

Tube Diameter 14mm

Tube filld to 30ml

Disc Diameter 30mm

Disc Evaporation 10mm 2

This is my  first attempt of making a  traditional Piche Evaporimeter

I am using a glass tube   this tube started life as a Fluorescent  light tube  525 millimetres  tube diameter 14mm

I  cut off both ends  using a  dremel  cutting disc  then I hand ground  the ends of the tube with some wet and dry

For the top I used a small plastic lid ,   then drilled a small hole in the top  then  threaded   some wire through to make a loop
filled the Lid  with  hot melt glue  and pushed  the tube in place

the bottom  where  the  blotting paper circle   will be fixed   I  used a  plastic lid  off a  small tub
,I cutout the centre  and  glued  this  to the  other end   to form a platform , the holding clip is made from a small plastic tube
with a small bar this is to hold the rubber bands

Update 27/01/2010 Glass tube has been replaced with a Perspex tube, with a new scale worked out from the volume of water
TOP
Bottom  platform
Welcome to Weather-Above
1/ first fill the tube with distilled water

2/ place filterpaper between filter holder

3/turned the tube upside down so the filter becomes moist position position the tube , to hang from a fixed hook

4/ make sure the paper filter is moist, slide down plastic marker 1 to the top of the water this is where you will measure from

After 24 hours slide plastic marker 2  to the water level  using digital calipers measure between the two markers

This will give you the amount evaporation over 24 hours


Small tube Holding Clamp
To Secure Filter Paper
Filter Papper
Bar
Large Lid {rain cover }
Glass Tube
Rubber Bands
platform