The VS series of visible spectrophotometers is a very high-speed visible spectrometer marketed by our subsidiary, Spectraline Inc. The spectrometer is used for analysis of a wide range of phenomenon that involves radiation in the visible wavelengths (300-1000 nm).


  • No moving optical components
  • High spectral acquisition speed: 10/60 KHz
  • Wide spectral range: 0.3 to 1.1 microns with a nominal 2 nm resolution
  • Fully aligned and calibrated to provide absolute radiometric intensities
  • In conjunction with the 2-D scanner provides hyperspectral images

  • Combustion research
  • Measurement of OH and CH emission intensities in flames
  • Soot radiation measurements
  • Laser monitoring

  • OH monitoring in turbines
  • High speed laser monitoring
  • Metal coating inspection

Radiation enters the inlet port of the spectrometer through a window mounted on the interface place. The radiation then passes through a set of collimating mirrors before being dispersed by a pair of calcium fluoride prisms. The dispersed radiation is focused onto a photodiode array which converts the radiation into voltages. After calibration, the VisiSpec software calculates the relative intensities corresponding to the voltage of each pixel and plots it against the corresponding wavelength falling on each pixel. When referenced with calibrations obtained using a black body radiation source, the software provides the absolute values of radiation intensities recorded by the detector array.


All of En’Urga’s products are custom-made. Please provide details in the Contact Form for any modifications of performance specifications, or any change in the physical configuration of the desired instrument. A description of your application is helpful.