Maker Pro
Maker Pro

Very basic Q! Potential divider or Wheatstone for load cell

phil555ip

Mar 3, 2017
2
Joined
Mar 3, 2017
Messages
2
Hello/ I hope someone can help. My supervisor wants me to use a load cell - this one https://www.tekscan.com/products-solutions/force-sensors/ht201 - to measure pressure in a cylinder - we don't know if this will work, just want to experiment. He said ask the lab technician, who says to just connect the power to the load cell via a potential divider circuit and measure the change in applied voltage with something like an Arduino. But, the recommended circuit diagram says use an op amp, AND my supervisor suggested a Wheatstone bridge instead.

What is the best way??
Also, the Tekscan sensor requires -5 v into it and the op amp has 0 and +5v supply. Anyone know why??
 

phil555ip

Mar 3, 2017
2
Joined
Mar 3, 2017
Messages
2
I forgot to say that i need to measure the force change over time, and it would be asier to data log this, hence arduino!. So the input to the arduino needs an op amp??
thanks
 
Top