Various load cell types are preferred, relative to the needs of the laboratory or operational environment. Strain gage load cells are accurate within 0.03 to 0.25%. Used for experimental stress ...

Multi-axis wireless load cells and digital technology have changed the face of force sensors.

The four load cells allow the 50 kg sensors to read a person’s weight, up to 200 kg, anyway. The load cells themselves are in a bridge configuration which adds the weight on each cell together.

Such cells also need a bulky and expensive signal conditioner to make them useful. Engineers at Loadstar Sensors, Mountain View, Calif. (loadstarsensors.com), use a capacitive sensing scheme in ...