METHOD FOR PREVENTION OF ELECTROCHEMICAL MIGRATION PHENOMENON AND DEVICE FOR ITS IMPLEMENTATION

摘要

FIELD: aviation.;SUBSTANCE: invention relates to aircraft engineering and can be used to improve reliability of critical equipment on board aircraft due to reduced probability of electrochemical migration phenomenon. Disclosed is a device for preventing electrochemical migration on a printed circuit board, which includes a heating element with a control device arranged between dielectric layers inside the printed circuit board. Printed circuit board temperature sensor is installed on printed circuit board surface. Environmental temperature and humidity sensors are installed at distance of up to 10 cm from surface of printed circuit board. All said sensors are connected to heating element control device.;EFFECT: reduced probability of occurrence of electrochemical migration, excluding one of conditions required for its occurrence (availability of electrolytic layer), which improves reliability of onboard equipment of aircrafts.;1 cl, 1 dwg