Abstract
We tested some tipping-bucket flow meters(15.7cc, 75cc, 100cc and 200cc)to correct the errors in the flow measurement. We found that the amount of water for one tip increases with the increase of inflow flux. The error characteristics show two typical features. In case of tipping-bucket flow meters bigger than or equal to 75cc, inflow flux has linear relationship with the amount of water for one tip. When we know the amount for one tip at inflow flux is almost zero, the use of the same compensation parameters produces merely 3% error. On the other hand 15.7cc tipping-bucket flow meters show both linear and parabolic type relationships between inflow flux and amount of water for one tip. About 10% error occurred if the same compensation parameters were used. Hence, each 15.7cc tipping-bucket flow meters needs different compensation parameters for the accuracy.
