Phase light range finder

Details Phase light range finder Phase light range finder

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984rpeee.......43n&link_type=abstract

In its USSR Rept.: Electron. and Elec. Engr. (JPRS-UEE-84-008) p 43 (SEE N84-31427 21-31) Transl. into EnGLISH from Izmer. Tek

Astronomy and Astrophysics

Astronomy

Antenna Design, Laser Range Finders, Parabolic Antennas, Radio Astronomy, Radio Telescopes, Dimensional Measurement, Distance, Time Measurement

Scientific paper

One of the complex technical problems solved with the assistance of a plane light finder is monitoring of the geometrical dimensions of the antennas of radiotelescopes with large diameters (greater than 25 meters), intended for radioastronomy investigations. The assigned technical characteristics of the radiotelescopes and the effectiveness of its operation are assured by regulation of the antenna profile by the results of measurements of the distance from one fixed point to check points on the surface of the parabolic mirror, the number of which can amount to several thousands. Monitoring of an antenna profile by this method provides for use of laser range finders which assure measuring of 10-100 meter distances with high precision (error of measurement 0.1 to 0.4 mm) and speed of response (measurement time - units of a second). A phase light range finder which satisfies the indicated requirements is considered and described in detail.

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