Satellite electric-propulsion working medium xenon filling characteristic test method

The invention discloses a satellite electric-propulsion working medium xenon filling characteristic test method. The method includes the following steps: testing the saturated vapor pressure of xenon; carrying out gas phase and supercritical PVT property test on xenon; carrying out liquid phase PVT property test on xenon; properties test xenon liquid PVT; measuring he saturated vapor pressures of xenon at different temperatures by adopting a burnnet technology and constant volume technology combined test technology through constant-volume static equilibrium heating, and fitting a saturated vapor pressure equation; and testing the filling characteristic parameters of xenon in gas phase and supercritical states based on a burnnet-constant volume technology to obtain the filling volume constant and the inflating constant of xenon; and measuring the filling characteristic parameters of xenon under a liquid phase condition by adopting the constant volume technology, and adopting a forward heating test and reverse