The InfraTec 8300 is a cooled thermal imaging camera operating in the shortwave infrared (SWIR) to mid wave infrared (MWIR) spectral region (1.5 – 5.7μm). Using a spinning filter wheel the camera can record data in multiple different wavebands at a temperature resolution of up to 0.02k. Thermal images can be taken up to a frame rate of up to 2.5kHz. Different applications can be supported depending on the waveband filters used – for example mapping of surface brightness temperatures, identification of landscape fires and fire temperatures and the detection of plumes of various gases.
Thermal decoupling of the heat producing electronics module and the detector module, along with the use of a Stirling cooler, enables long-term stability whilst making thermographic measurements. The 8300 takes material specific emissivity and transmissivity into account while measuring, allowing for spectral thermography. The camera comes equipped with a rotating aperture and filter wheel, widening the temperature measuring range from -40 to 1500 ˚C with a measurement accuracy of ±1 ˚C. The filters can be altered based on what is being targeted, i.e. flames from wildfires or gas plumes from the same wildfires.. Fires peak emission is in the MWIR band, whereas the surrounding ground and solar iridescence peak either side of MWIR, causing fires to clearly stand out from the background. Specific uses pertain to aerial mapping of wildfire location and temperature. Other uses include recording soil temperatures, giving insight into moisture content and enabling comprehensive soil assessment.
The Infratec HD Head is an uncooled thermal imaging camera operating in the long wave infrared (LWIR) spectral region (7.5-14μm) at a temperature resolution of up to 0.02k. Our HD head is fitted with a narrowband 10.8 μm filter and can measure brightness temperatures from ambient up to in excess of 800 celsius.
Leuzinger, S., et al., (2010). Tree surface temperature in an urban environment. Agricultural and Forest Meteorology, 150(1), pp.56-62.
Pless, S., et al., (2012). Infrared cameras in airborne remote sensing: IR-Imagery for photogrammetric processing at German Aerospace Center DLR, Berlin. In 11th International Conference on Quantitative InfraRed Thermography.
Zia, S., et al., (2012) Assessing crop water stress of winter wheat by thermography under different irrigation regimes in North China Plain. International Journal of Agricultural and Biological Engineering, 5(3), pp.24-34.
King’s College London, Bush House (NE wing), 30 Aldwych, London, WC2B 4BG