The errors can cause the serious loss of the performance of a precision machine system. In this paper, we proposed the method of allocating the alignment tolerances of the parts and applied this method to Confocal Scanning Microscope to get the optimal tolerances.
In general, tight tolerances are required to maintain the performance of a system, but a high cost of manufacturing and assembling is required to preserve the tight tolerances. The purpose of allocating the optimal tolerances is minimizing the cost while keeping the performance of the system. In the optimal problem, we set the performance requirements as constraints and maximized the tolerances. The Monte Carlo Method, a statistical simulation method, is used in tolerance analysis.
Alignment tolerances of optical components of the confocal scanning microscope are optimized, to minimize the cost and to maintain the observation performance of the microscope. We can also apply this method to the other precision machine system.
