Simultaneous Mapping of Wide Temperature Ranges

HDR Function of High-end Camera Series ImageIR® Facilitates the Analysis of Objects with Extreme Temperature Gradients

Thermography with ImageIR series - HDR feature - Picture credits: © iStock.com / Vershinin M

The new High Dynamic Range (HDR) function of the Infrared ImageIR® camera series from InfraTec enables measurement scenarios with extremely different temperatures to be recorded continuously. The starting point of the HDR function is a fast rotating filter wheel. The wheel provides up to six positions ensuring maximum flexibility for demanding measurement tasks.

When recording in HDR mode, multiple thermograms with different integration times and different filters are recorded quickly in succession and compiled into an overall image with a high dynamic range. To activate the HDR function, it is sufficient to select a previously defined calibration range. After that, the rotation of the rotating filter wheel and the composition of the thermogram starts automatically. The measuring range can span up to 1,500 K. In the case of the ImageIR® 8300 hp, this setting can be used to capture full-frame images with (640 × 512) IR pixels and a temporal resolution of 350 Hz. In addition to extremely high temperature applications, the fast rotating filter wheel offers a wide range of measurement options, in which different spectral ranges need to be measured. Lastly, users can also use up to six spectral filters instead of neutral density filters.