Construction features of positional angle sensors of modern geodesic devices

摘要

This paper discusses the operating principles of optoelectronic positional angle sensors that use pseudo-random binary code sequences. The features of an optoelectronic two-channel positional angle sensor for next-generation geodesic devices produced by OAO PO é. S. Yalamov Ural Optomechanical Factory are described. The 5Ta5 tachymeter, with the optical positional angle sensor thus developed, measures relative angular positions with an rms error no greater than 5 arc s.