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Student
Title
Supervisor
Faculty
Educational Programme
Final Grade
Year of Graduation
Dmitrii Abrameshin
Research and Development of Spacecraft Electronics Resistant to Charging Effects
Computer Systems and Networks
(Master’s programme)
2018
The master's thesis is devoted to the problem of internal electrification of on-board radio electronic equipment for space vehicles. In the framework of this work, an analysis was made of the causes of the occurrence of electrostatic discharges, as well as methods for protecting them from their effects, a method for protecting equipment using weakly conductive dielectrics as a printed circuit board material was developed. On the example of simulating the operation of typical digital devices such as instrumental amplifier, symmetrical multivibrator and single-stage transistor amplifier, the method is substantiated, and the possibility of its application is shown to increase the reliability of on-board radio electronic equipment and to increase the life of the spacecraft in near-earth orbit and beyond.

The aim of the work is to create an engineering method of protection of radio – electronic devices of space application against damaging factors of internal electrification of spacecraft on the basis of computer modeling and scientifically grounded method of selection of the conductivity of printed circuit boards dielectric, which excludes the possibility of electrostatic charges.

As a result of the project work, the following tasks were performed: a technique for protecting digital devices from electrostatic charges was developed, computer modeling of various digital devices was carried out with the replacement of the printed circuit Board dielectric with a composite dielectric, the analysis of existing methods for protecting spacecraft electronic devices from the impact of internal electrification factors was performed, and the effect of the conductivity of the printed circuit Board dielectric on the output characteristics of various digital devices was performed using a composite dielectric, which ensures the flow and alignment of the incoming into it, such as space plasma, electric charge and thus cause the absence of charges.

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