Engineering Methodology for the Selection of a Composite Polymer Dielectric that Ensures the Absence of Electrostatic Discharges in the Design of the Onboard Electronic Equipment of the Spacecraft

Abstract

an engineering technique for selecting a composite polymer dielectric with increased conductivity, ensuring the absence of electrostatic discharges, has been developed for radio electronic devices as part of the onboard equipment of spacecraft. On the basis of the developed methodology, at the stages of preliminary and technical design, calculations of the operability of the developed radioelectronic means are carried out in relation to the invariability of the operating characteristics specified according to the terms of reference, and at the same time there is no electrostatic discharges of the printed circuit board substrate - printed conductor. The method is based on comparison of the conductivity value of the composite dielectric of the printed circuit board of the developed radio-electronic apparatuses, at which its operating parameters are still unchanged, with the criterion conductivity value ensuring the absence of electrostatic discharges –10-9 Ω-1 ·m-1. The method is intended for the developed avionics of space application, operating on board the spacecraft, operated in conditions of intense impact of space plasma.