CONTACTLESS METHOD OF MEASURING GAS PRESSURE IN DISCHARGE VOLUME Russian patent published in 2025 - IPC H01S3/97 G01L23/06 

FIELD: measuring.

SUBSTANCE: invention relates to methods of measuring gas pressure in gas-discharge chambers or lamps. Contactless method of measuring gas pressure in discharge volume consists in focusing laser radiation inside discharge volume and ignition of optical discharge, wherein a power meter is installed at the output of the laser radiation from the discharge volume, the laser radiation power passed through the discharge volume before and after the optical discharge is measured, coefficient of absorption of laser radiation in the optical discharge is calculated, gas pressure in the discharge volume is determined from the calculated coefficient of absorption.

EFFECT: measurement of gas pressure in a transparent discharge volume of arbitrary shape without introduction of measuring elements into the structure of the discharge volume.

2 cl, 1 dwg