Application and Development of Measurement and Evaluation Technology of Gate Geometry of Ion Thrusters Abroad

As the core component of ion thruster, grid module plays a very important role in the performance, reliability and life of electric thruster. The main research contents of the grid geometry test and evaluation technology for ionized thrusters are briefly introduced. The important progress of the new technology applied to the grid geometry test and its evaluation in the life test of advanced space technology in foreign countries is discussed. The developing trend of the grid geometry test and evaluation technology is summarized.