FIELD: chemistry.
SUBSTANCE: method of manufacturing workpieces includes supply of mixture of molecular gas reagents, containing nitrogen, oxygen and silicon atoms into support tube, excitation of UHF discharge in it, formation of plasma column, provision of its scanning along support tube and precipitation of products of reaction, taking place in mixture, onto internal surface of support tube. Mixture of molecular gas reagents is additionally supplied into second support tube, UHF discharge is excited in it, plasma column is formed, its scanning along support tube is realised, precipitation of reaction products on internal surface of support tube, synchronous movement of plasma columns in first and second support tubes, transmission of power from region of plasma column of second support tube to region of plasma column of first support tube, measurement and regulation of temperature of first support tube surface by measurement of transmitted power from region of plasma column of second support tube to region of plasma column of first support tube depending on measured temperature, are carried out.
EFFECT: elaboration of mode of manufacturing optical fibres on the basis of nitrogen-doped quartz glass with provision of stabilisation and smooth control of temperature in region of plasma column of support tube, with reduction of time for installation of required tube temperature and with increased accuracy of temperature adjustment.
12 cl, 2 dwg
