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Ashesh Shrestha
Ashesh Shrestha
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also asked at: https://forum.arduino.cc/index.php?topic=670246.0

I have a generic load cell (image) and am using Hx711 which is connected to arduino. The code is from Instructables.

enter image description here

When I fix and apply the load as in case 1, it shows positive force. But when I do as in case 2, it shows negative force. I haven't flipped the part just rotated about Z axis. Here is my question: Shouldn't both cases show same force considering region of 'strain gauge 1' is at tension and region of 'strain gauge 2' is at compression? Am I missing something?

I have a generic load cell (image) and am using Hx711 which is connected to arduino. The code is from Instructables.

enter image description here

When I fix and apply the load as in case 1, it shows positive force. But when I do as in case 2, it shows negative force. I haven't flipped the part just rotated about Z axis. Here is my question: Shouldn't both cases show same force considering region of 'strain gauge 1' is at tension and region of 'strain gauge 2' is at compression? Am I missing something?

also asked at: https://forum.arduino.cc/index.php?topic=670246.0

I have a generic load cell (image) and am using Hx711 which is connected to arduino. The code is from Instructables.

enter image description here

When I fix and apply the load as in case 1, it shows positive force. But when I do as in case 2, it shows negative force. I haven't flipped the part just rotated about Z axis. Here is my question: Shouldn't both cases show same force considering region of 'strain gauge 1' is at tension and region of 'strain gauge 2' is at compression? Am I missing something?

Source Link
Ashesh Shrestha
Ashesh Shrestha
  • 111
  • 6

Load cell behaving weirdly. Output magnitude of force depends on which side is held and which side force is applied

I have a generic load cell (image) and am using Hx711 which is connected to arduino. The code is from Instructables.

enter image description here

When I fix and apply the load as in case 1, it shows positive force. But when I do as in case 2, it shows negative force. I haven't flipped the part just rotated about Z axis. Here is my question: Shouldn't both cases show same force considering region of 'strain gauge 1' is at tension and region of 'strain gauge 2' is at compression? Am I missing something?