A Real-Time Spectroscopic Sensor for Monitoring Laser Welding Processes

Sensors

Teresa Sibillano¹  Antonio Ancona¹  Vincenzo Berardi² 

[1] CNR-INFM Regional Laboratory LIT³, via Amendola 173, Bari, Italy; E-Mails:;Dipartimento Interateneo di Fisica, Università e Politecnico di Bari, Via E. Orabona 4, I-70126 Bari, Italy

关键词: Optical sensor;    laser welding;    plasma spectroscopy;   

DOI  :  10.3390/s90503376

来源: mdpi

【 摘 要 】

In this paper we report on the development of a sensor for real time monitoring of laser welding processes based on spectroscopic techniques. The system is based on the acquisition of the optical spectra emitted from the laser generated plasma plume and their use to implement an on-line algorithm for both the calculation of the plasma electron temperature and the analysis of the correlations between selected spectral lines. The sensor has been patented and it is currently available on the market.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.