Monitoring deformations of industrial objects using optical-electronic autoreflection system

摘要

Nowadays, optical-electronics measuring instruments for control the linear deformations in the monitoring industrial constructions (turbines, dams, booms, bases plates, walls, etc) are used effectively. Autocollimating and autoreflecting schemes are two main basic of such systems. The autocollimating system has larger sensitive than autoreflecting ones. However, the autoreflecting system is more effective for using IR LED as a source and using CCD matrix as a photo-receiver. In addition, the autoreflecting system has larger working distance than autocollimating system. The experimental test-bed of autoreflecting system for alignment control was realized. Parameters of a system are the following: IR LED L2656-03 with power 9 mW as sources of radiation; the focal length of autocollimators objective is 250 mm, the matrix change couple devise as photo-receiver with dimension of pixel 2.2μm. The experimental error of this system is 0,007 mm on a working distance of 0.5 m and 0.06 mm on a distance of 8 m.