High-dynamic Infrared Cameras for Non-contact Temperature Measurement from 300 °C to 3000 °C

State of the art IR cameras in the near infrared spectral range for monitoring high temperatures in industrial applications are characterized by a number of small measurement ranges. Scenes with a high temperature contrast require several measures switching between these ranges and result in pictures with underrespectively overexposed parts. New developed high temperature IR cameras with high-dynamic Silicon detectors are using a spectral range in the near infrared and a very special signal processing. A continuous temperature measurement range from 600 °C up to 1500 °C or optional 1400 °C to 3000 °C is realized with a resolution of 512x384 or 768x576 pixels and a measuring frequency of 60 Hz or 50 Hz. Using a InGaAs high-dynamic detector with 320x256 pixels a continuous temperature measurement range from 300 °C to 1200 °C is realized (measuring frequency 100 Hz). Each resulting image contains the full dynamic range and is transmitted via a Gigabit-Ethernet interface in real time.