A laboratory technician writing notes of his observations at the bench of the Ultra-Violet Emission Spectrograph.
A laboratory technician writing notes of his observations at the bench of the Ultra-Violet Emission Spectrograph. The emission spectrograph is being used to determine the concentration of additive metals and wear products in lubricating oil. Only a few drops of the oil sample are required in the spectrograph equipment and the test is completed in about ten minutes. The sample is Excited by heating in an electric arc or spark. The light emitted contains a range of wavelengths which are. characteristic of the elements present. The instrument separates the light according to the wavelength and measures the intensity of those wavelengths of interest.
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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archival, archive, arcsparkwavelengthselementswavelengthmeasuring, emission, equipmentheatingelectric, historical, history, laboratory, laboratorytechnicianwriting, notes, notesultra, oilspectrograph, spectrographmetalslubricating, technician, violet, writing
