Comprehensive experiment testing system for small satellite antenna

Abstract

A comprehensive experiment testing system for a small satellite antenna comprises the antenna, a satellite rotating mechanism, accuracy testing mechanisms, a shock response collecting mechanism, a satellite, an antenna unfolding mechanism and an experiment control mechanism, wherein the antenna is a double-shaft rotating antenna; the satellite rotating mechanism is used for arranging a satellite state required by the antenna during performing multi-dimensional unfolding; the accuracy testing mechanisms is used for testing the mounting accuracy and the pointing accuracy of the antenna at every stage of an experiment; the shock response collecting mechanism is used for collecting shock response data generated during a detonating process of initiating explosive devices; the satellite is used for mounting the antenna; the antenna unfolding mechanism is used for providing a zero gravity simulation environment required by the antenna for unfolding; the experiment control mechanism is used for controlling detonation of the initiating explosive devices to unlock the antenna, and drives the antenna to unfold and fold. The system can perform the unlocking shock experiment and the unfolding experiment that the double-shaft rotating antenna is on the small satellite, the testing items are multiple, and the use range is wide.

Description

technical field [0001] The invention relates to a small satellite antenna comprehensive test and test system, which realizes the comprehensive test and test of multiple main functional actions such as antenna locking, release, deployment, retraction and rotation through a set of systems, and is suitable for large and complex antennas on small satellites Expand the experimental test. Background technique [0002] During the in-orbit operation of the spacecraft, it needs to complete the information exchange with the ground or with the spacecraft. The process of information exchange is realized through the transmission and reception of radio signals, that is, through the conversion and transmission of energy. Antenna systems of all kinds are a key part of this process. Due to work requirements, the antenna system is generally installed on the surface of the spacecraft to eliminate interference with other systems. For satellites, on-board antennas are mainly used to complete s...

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Problems solved by technology

[0005] When carrying out antenna ground deployment tests, in order to solve the problem of zero-gravity environment simulation, the deployment hanger is generally used to provide gravity unloading for the antenna, but the following three problems usually exist in the antenna ground deployment test: First, the deployment hanger is large in scale, Before the test, it is necessary to carry out multiple project debugging to meet the zero-gravity environment in the whole process of the antenna deployment path; the second is to meet the requirements of the deployment axis position during the antenna deployment test. It takes a lot of time to meet the satellite position requirements, and it is not easy to meet the requirements; the third is that the deployment hanger and the satellite are independent systems. Once the adjustment is not in place, the matching error and environmental impact between the two will affect the test results. have a greater impact

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