Mid-Infrared Spectrometer

The ES series of spectrometer was developed by En’Urga Inc. and is marketed by our subsidiary, Spectraline Inc. The spectrometer is used for analysis of combustion by-products and for emission and temperature measurements.

• No moving optics
• High speed: 390/1320 Hz.
• Measures spectra from 1.3 to 4.8 microns at 15 nanometers resolution

• Combustion research
  • Temperature measurements in large pool fires
  • Flame spread measurements
  • Emission measurements from flames
• Power Generation
  • Temperature and species measurements in a gas turbine combustion chamber
• A complete list can be found here at the Spectraline website.

• Spectrometer and power supply module
• PC with data acquisition boards and InfraSpec software pre-installed, and all data and electrical cables
• A wide range of specialized accessories are available and are listed on Spectraline’s Accessories page.

Radiation enters the inlet port of the spectrometer through a sapphire window mounted on the interface plate. A tuning fork chopper oscillates at a specific frequency. The chopped radiation falls on a set of mirrors and off-axis parabolas that collimate the beam; which then passes through a set of calcium fluoride prisms that disperse it into its component wavelengths. The dispersed beam falls on another parabolic mirror that reflects it on to the detector array. The detector is an array of 256 Lead Selenide elements arranged in a linear fashion. These pixel elements respond to the incident radiation by producing an output current. The built-in multiplexer reads these currents at 1 MHz and provides it at the camera output. A proprietary drive circuit converts these currents to voltages, amplifies them and sends them to the data acquisition board. The InfraSpec software reads the data acquisition board and writes the data to memory. The software then calculates the intensities corresponding to each voltage and plots it against the corresponding wavelength. When referenced with calibrations obtained using a black body, 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.