Electric propulsion spacecraft plume parameter detection apparatus

Abstract

The invention provides an electric propulsion spacecraft plume parameter detection apparatus. The apparatus comprises a vacuum cabin observation window, a vacuum cabin, two electric thruster multi-parameter diagnosis devices, an electric thruster, a movable support, a computer, an ignition control cabinet, a vacuum air exhaust system, and an air supply bottle, the radial cross section of a first electric thruster multi-parameter diagnosis device vertical to an installing plate is parallel to the radial cross section of the electric thruster vertical to the installing plate, and the distance between the two radial cross sections is greater than 100 cm. According to the apparatus, the electric propulsion spacecraft plasma plume parameter distribution and spacecraft on-orbit performance degradation condition in the simulated space environment condition can be estimated via the measurement and collection of pollution data in the electric thruster multi-parameter diagnosis devices, guidance and basis are provided for the development of the electric propulsion spacecraft and the estimation of the lifetime, the electric propulsion spacecraft can work safely and reliably in the space, the test process is stable and reliable, and the reproducibility is good.

Description

technical field [0001] The invention belongs to the technical field of aerospace and is applied to the ground test and on-orbit monitoring of plume parameters of electric propulsion spacecraft, in particular to a plume parameter detection device for electric propulsion spacecraft. Background technique [0002] With the continuous development of aerospace technology, various thrusters, such as Arcjet, Magnetoplasma Thruster (MPD), Steady State Plasma Thruster (SPT), Ion Thruster (IE), etc. More and more applications are on earth satellites and deep space probes. The plume ejected by the electric thruster is a high-temperature, high-energy plasma flow. However, due to its special plasma plume characteristics, electric propulsion technology causes changes in the plasma environment around the satellite, which induces a series of negative effects such as electrification on the satellite surface, deposition pollution, disturbance torque, and electromagnetic interference. At pres...

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Problems solved by technology

At present, my country is still unable to monitor the plasma plume parameters of electric propulsion engines in situ

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