Understand Uncertainty FOR BETTER TEST ACCURACY.

The article discusses how to model the measurement uncertainty to provide assurance that designs meet their required performance. It says that designers apply a guard band around a performance parameter to account for the difference between the acceptance test limit of the device under test(DUT) and the performance limit of the test equipment. Meanwhile, the calibration factor is printed on a power sensor's label or stored in an electronically erasable programmable read-only memory (EEPROM).