Thermography Camera – FLIR S65

With Thermography-Cameras like the "Therma CATTM S65" (Figure 1) infrared radiation emitted by surfaces can be detected. Depending on the intensity of the infrared radiation a thermal image can be created. The thermal image shows, the temperature distribution on surfaces. Many people know these images from thermal investigations on buildings. In this field, thermographic investigations are often used to show the effect of an insulation.

Picture: PtU Bildarchiv
Figure 1: Camerasystem “Therma CATTM S65”

The intensity of the emitted infrared radiation is especially influenced by material characteristics. Due to component imperfections like blow holes or cracks the heat flow is affected. Depending on the investigation method (reflection or irradiation, see Figure 2) imperfections lead to heat sources or sinks on the surface. This fact is used for volumetric failure detection.

Picture: PtU Bildarchiv
Figure 2: Thermographic meausring principle, left: reflection, right: irradiation

Technical facts

  • Temperature range -40 °C up to +1500 °C
  • Thermal sensitivity 0,08 °C at 30 °C (50Hz)
  • Accuracy ±2° C, ±2 % of the displayed temperature value
  • Image repetition frequency 50/60 Hz non-interlaced
  • Detector: uncooled Microbolometer with 320 x 240 Pixel
  • Spectral range 7,5 up to 13 µm (LWIR -longwave IR)
  • Recording: Single image and sequences (realtime)
  • Optics: Close-Up lens 64/150 and 0,5 wide-angle 45° x 34° / 18 mm
  • Steady and mobile useable

Patrick Volke M. Sc.