METHOD FOR DETECTING LOW-CURRENT ELECTRIC ARC IN RADIO ELECTRONIC EQUIPMENT Russian patent published in 2017 - IPC G01R31/02 

FIELD: electricity.

SUBSTANCE: method for detecting low-current electric arc in radio electronic equipment operating under vacuum conditions includes measuring the power of electromagnetic noise in power supply circuits of radio electronic equipment (REE) within the frequency range from 50 mhz to 500 mhz, and simultaneously measuring the intensity of optical radiation in the inner space of each of the REE segments. The indicator of progressive arc discharge is a monotonic multiple reduction of electromagnetic noise power synchronisly with monotonic multiple increase of optical radiation intensity in the inner space of the REE segment. To avoid the influence of the REE light-emitting elements of the spectrum visible range on the arc radiation optical measurements results, a recording sensor can have selective spectral sensitivity in the UV range of the spectrum.

EFFECT: high detection sensitivity of low-current electric arc and localisation of radio electronic equipment segment in which the arc occurred.

2 cl, 2 dwg