METHOD OF INSPECTING LEAKAGE OF RING LASER GYROSCOPES Russian patent published in 2016 - IPC G01M3/38 H01J17/22 

FIELD: physics.

SUBSTANCE: method comprises exciting an electric discharge in a ring laser gyroscope and recording the laser radiation spectrum at the laser operating current; extinguishing the discharge; placing the gyroscope in a sealed chamber which, under an excess test pressure, is filled with a tracer gas and held for a given period of time; further, retrieving the gyroscope from the chamber; re-exciting the electric discharge and maintaining the said discharge at laser operating current and then recording the radiation spectrum. The presence of the spectral line of the tracer gas in the radiation spectrum indicates the leakage of the ring laser gyroscope.

EFFECT: wider range of detected leakages and enabling the unambiguous determination of the gas medium degradation.

2 dwg