Laser welding system pulse xenon lamp power detection circuit and method thereof

Abstract

The invention discloses a laser welding system pulse xenon lamp power detection circuit and a method thereof. The real-time monitoring of the use condition and the aging degree of the pulse xenon lamp can be realized, and the photoelectric conversion efficiency of the laser welding machine can be known, and therefore the risks of the crystal explosion caused by the aging of the pulse xenon lamp, or the fogging and the water leakage of the crystal of the laser device can be reduced, and at the same time, the stability of the laser control system can be improved.

Description

technical field [0001] The invention relates to a detection method for xenon lamp power, in particular to a pulse xenon lamp electric power detection circuit and detection method applied to a laser welding system. Background technique [0002] Because the laser welding equipment will have a large pulse current through the pulse xenon lamp, and the pulse xenon lamp (pump source) will turn black and crack after a period of use. The blackened lamp tube wall will absorb more discharge radiation energy, causing the local heat of the lamp tube to rise. When the heat rises to a certain level, the metal electrode and the quartz glass tube will fuse together. Form cracks, and even burst in severe cases. In this case, its electro-optical conversion efficiency will be greatly reduced, and the working condition will become unstable. In domestic laser welding equipment, there is no good detection method for the early failure and service life of the pulsed xenon lamp. It can only be che...

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Problems solved by technology

In domestic laser welding equipment, there is no good detection method for the early failure and service life of the pulsed xenon lamp. It can only be checked and maintained manually. In severe cases, the two end faces of the expensive crystal in the solid-state laser leak due to the failure of the sealing ring. Or because the temperature difference between room temperature and cooling water is too large, it is impossible to know when there is fogging and the surface of the crystal is polluted by cooling water and fouling, resulting in expensive crystal bursting and scrapping directly.

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