Liquid Level Sensing Methods
Russell McMahon email (remove spam text)
I'm researching various methods used to sense the level of liquids in
containers in the 50-125 gallon range. So far I have found various web sites
and manufacturers that use:
See "water level in fire truck tank" discussion some months ago.
Consider (as discussed then) an air column with a pressure sensor at the
top. This method is used in many (most?) washing machines for water level
Also more recently see "Fuel tank sensor / real world solutions"
http://www.piclist.com hint: To leave the PICList
See also: www.piclist.com/techref/index.htm?key=liquid+level+sensing
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