Abstract
A series of papers presents a new calibration method particularly for up to a middle size CMM. The method is able to provide the 21 parametric errors only by performing the coordinate comparison. An automated calibration system for the production stage of CMMs is realized. Following to the first report describing the adopted linear parameter model and simulation result under the ideal situation, contribution of variance in the observation to the result is considered in this report. Application of the error propagation analysis through the linear model is proposed. Estimated parametric error components are evaluated by the propagated variance on the linear guide way model with six kinematic freedoms. The result in seven different stages in variance shows that six parametric errors are possible to be estimated simultaneously with in the propagated reliability range.
