The optimization of continuous torque calibration procedure

The results of this experiment show the relative deviation between the step-by-step and continuous calibration within ±0.02% of reading that was enough for class 0.2 torque measuring devices (DIN 51309) and torque transfer wrench (DAkkS-DKD-R 3-7) calibration. For the step-by-step measurement, the duration time in each torque step (from applying torque to data record) must be adequate for processing time interval of the filter. For the continuous measurement, the speed of applying torque and filter setting should be optimized for best measurement capability.