An Applied Study of Destructive Measurement System Analysis

Measurement system analysis (MSA) is used to assess the ability of a measurement system to detect meaningful differences in process variables. For destructive measurement system, there are two methods to design and analyze it based on the homogenous batch size, including nested MSA and crossed MSA. At the same time, the P/T ratio ("tolerance method") is modified to measure the suitability of destructive measurement system to make pass/fail decisions to a specification. Finally, rip off force testing system of chargers is assessed by crossed MSA and modified P/T ratio. Some suggestions for destructive MSA are also presented.