Method for measuring and adjusting alignment error for coupling members of rotating shaft and instrument system therefor

It is a measurement and adjust method and its device system for the connection parts of two spinning axis of mechanism and at the same time it relates to spinning axis line of two halves of the connection parts and center of two parts relative position relationship. It adopts the four parameters based on public normal line method to describes the alignment error of the connection parts and aims at the four parameters of the public normal line as measurement and adjust process and designs and makes relative device system according to the requirements of the measurement and adjust progress. It is applied to the measurement and adjust of two spinning axis connection parts alignment error during the install, debug and repair of the mechanism and also is applied to the real time monitor and diagnose on the alignment error status of the on-line operation mechanism connection parts.