In production testing, validation, and quality control, correctly defining the tolerance limits is one of the most critical factors to ensure reliability, repeatability, and yield (FPY). The test tolerance represents the acceptable margin of variation between the measured value and the expected nominal value, taking into account natural imperfections of
The test jig is the physical contact point between the DUT (Device Under Test) and the test bench. The choice of jig type — manual, pneumatic, or motorized — directly impacts the productivity, safety, ergonomics, and repeatability of tests on the line. The ideal jig is one that balances robustness,
R&R is the acronym for Repeatability and Reproducibility, two fundamental components of the study of measurement system capability. This type of study, also known as Gage R&R, evaluates whether a measurement system (manual or automated) is accurate, reliable, and consistent, regardless of who performs it or when the measurement is