What is the reason for calibrating the sensor?
Calibrating allows you to: adjust the gain/sensitivity of each sensor and select unit of measure (grams, pounds, newtons, etc.) by converting raw percentage units to calibrated units. If you use the sensor without calibrating it, the data you get shows as a percentage of the maximum range of the sensor. Furthermore, there is variance between sensor runs, which could give different resistance values when applying the same load if not calibrated prior to testing.
