Originally posted by ibpointless2
View Post
Yes, the analog amp meter uses some of the power of the cell, and thus will read an lower uA value then an digital meter... Try to get an 50uA meter for more accuracy in reading.
The gain in uA can be caused by temperature/humidity difference when connected to a cell. Also cell 'recovery' can cause this effect when the cell under load (the meter) has a very high impedance.
P.S. I think we ALL agree that your elmer glue cell works, and has practical use. That has been proven over and over. However, there are just disagreements about water content of the cell...
A fair request to you:
Please, you have the analog Amp meter now... Make the cell again and place it in the oven as last time... take it out, measure amps with the analog meter and write down... Let cell cool down/give rest for say 15 minutes... Measure again with your amp meter (I predict it will be a little higher)... Then place your Elmers glue on it.... Now measure again with your analog meter (I predict the amp reading will be A LOT more at this point of time)... Then let the Elmers glue dry out for say how many hours/days and measure amps again with the analog meter... (I predict it has dropped down again, but still at a remarkable higher point then the reading from 'just out of the oven'). You might then take your own conclusions from these observations.
I agree, let's drop the yes/no about whether there is water or not... I observed something that may very well point into the direction that 'a little amount' of water has an positive effect (to much and the effect swings back to the negative side again).
@all
I just completed a long term test on a small sample cell, and have mixed results.
I placed the cell on a 'kind of' Penny circuit, (The circuit can operate with a less then 200 Nano Watt energy, however, at this point obviously the LED attached to it will NOT flash on it anymore, tough the oscillator continues to operate).
The cell under load stabilized at around 0.3050 to 0,3200 volt. Swing is caused due to humidity/temp difference. It has been under load for more then 4 days to reach this stable point.
I determined the impedance of the cell AFTER the run, which is given or take 855 Kohm
I made some small observations and then 'moisturized' the cell by placing a tiny amount of water on it. (In my opinion, I moisturized it a little to much).
After this I determined the cell impedance again, and it was given or take 22.3 Kohm.
The cell is now back on the load circuit for the 2nd run to observe possible changes. Run started at Thursday Dec 1, 11:30:00Hr (local time). Cell under load: 1.2427V, 17.5uA, 21.75uW, 14.3Hz pulse.
Small note: I seem to have 3 accuracy issues that I might solve in the next coming run.
--
Ron.
Comment