Patent ID: 7213416

Claim:
A glass base material manufacturing apparatus for manufacturing a glass base material, which is used as a base material of an optical fiber, comprising: a plurality of burners, arranged in a row at predetermined intervals along a longitudinal direction of a starting base material of said glass base material, for forming a deposit, which is a base material of said glass base material by depositing glass soot on said starting base material while moving reciprocatorily over a section of an entire length of said starting base material along the longitudinal direction of said starting base material; a plurality of flow rate regulators, at least one of which is connected to said plurality of burners, respectively, for regulating a flow rate of raw material gas of said glass soot, which is supplied to said plurality of burners; and a control module connected to each of said plurality of flow rate regulators for controlling individually said plurality of flow rate regulators, said control module comprising: a first control unit which controls a plurality of said flow rate regulators so that said raw material gas of a base flow rate is supplied to said plurality of said burners; and a second control unit which controls each of said plurality of flow rate regulators according to a correction value of flow rate of said raw material gas supplied to said burners, said correction value being calculated for each of said plurality of burners over said base flow rate.