Non-contact Optoelectronic Method for Monitoring the Profile of the Shoulder of the Spring Steam Compressor of the Design Installation

A new method is considered for contactless determination of the profile and curvature of the blades of the desalination plant steam generator at the stage of technological preparation and the general technology of blade manufacture. The geometry of the blades is controlled by processing the probing light flux reflected from the monitored surface, received by the scanning optical nozzle and converted into an electrical information pulse. The time interval between the information and reference pulses corresponds to the angular position of the probe flow, when it has a perpendicular direction to a particular point of the controlled curvilinear surface. The angle found serves as the basis for determining the derivative in the profile function at this monitored point. Thus, to estimate the curvature, the change in the velocity characteristics of the geometric profile function of the blade is used.