| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for measuring an electric discharge heat amount of an optical fiber fusion bonding connecting apparatus capable of directly more accurately measuring the discharge heat amount actually operating in an ECF. SOLUTION: Two optical fibers 10 are opposed at a predetermined interval in the state being deviated by an outer diameter from each other, butted and fusion bonding connected while heating by electric discharging between discharging electrode rods 21. Then, the fibers are connected to reduce the radially axially deviation amount. An image of the connection is taken by a television camera 26, its image signal is sent to an image processor 27, and a difference between the radially axially deviation amount before the connection and the radially axially deviation amount after the connection is obtained as a change amount of the deviation amount. If the change amount does not become a desired value, a reference voltage is corrected in response to its error. A discharge current is corresponded to the corrected reference voltage by a feedback loop composed of a discharge current detecting resistor 25, an error amplifier 24, a pulse generator 23 and a transformer 22. |
