NASA NTRS · 19670000326
Portable spectrometer monitors inert gas shield in welding process
Abstract
Portable spectrometer using photosensitive readouts, monitors the amount of oxygen and hydrogen in the inert gas shield of a tungsten-inert gas welding process. A fiber optic bundle transmits the light from the welding arc to the spectrometer.
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Grove, E. L.. 1967-09-01. Portable spectrometer monitors inert gas shield in welding process. https://ntrs.nasa.gov/citations/19670000326
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