| 摘要 |
The invention relates to engineering geodesy, in particular to geodesic control of deformations of constructions. An optical-electronic unit comprises a chain of photoelectric two-channel devices that comprises objectives, light sources and photo-receiving matrices, devices are installed with capability of mutual alignment to light sources of each other in pairs. According to the invention, round the frame of objective of each optical-electronic channel a circular band of light sources is mounted with possibility of switch on in sequence of each source one by one in circle of the band, and light-protection blend is mounted. Each device comprises electronic control block for sequential switch on/off of light sources. The invention provides increase of accuracy and reliability of alignment due to use of sub-pixel technology, simplification of design. |
