Re: Weight Sensor
Hello,
I think that IanP idea is most suitable. If the water surface is too large, this 10 ml will be very small change of the level, and respectively to the pressure.
Using mechanical system is possible, but i think that not be very accurately or will be very complexity if you want to have good resolution with big volume of the water, for example if you have only 1 l water ,10 ml will be a possible to get with spring and micro switch, but if you have 10 l i think that will be very difficultly to give this resolution.
About tenso sensor, this that suggest IanP, you must now that this is resestiv bridge, and if you want good accuracy must use differential amplifier with a small offset and good S/N ratio.