Contactless Online Method for Checking-Up a Net-Shaped Curtain’s Tension of a Radio-Reflecting Surface of Large Umbrella Reflector Antenna

Abstract

A new contactless method for checking-up a net-shaped curtain’s tension of a radio-reflecting surface of a large umbrella reflector antenna is presented. The method is based on revealing the correlation between Moiré patterns and net-shaped curtain uniformity and tension. The advantages of the method are presented. Its main advantage lies in the fact that it is possible to set the netshaped curtain on the folding skeleton of an antenna reflector in the online mode. A way to apply the method is presented.