Use of tunable diode lasers for controlling a brazing process

摘要

Methods and apparatus for controlling a brazing process. In one embodiment, a method includes receiving a signal from a tunable diode laser indicating a measured concentration of a gas present in an atmosphere in which the brazing process is performed. Responsive to the received signal, a control signal is issued to adjust at least one brazing process control setting affecting a change in subsequently measured concentrations of the gas present in the atmosphere.