Radiometric

“Radiometric” refers to the measurement of electromagnetic radiation, including visible light as well as other types of radiation such as infrared, ultraviolet, X-rays, and gamma rays. Radiometric measurements are used to quantify the intensity or power of this radiation.

In the context of infrared thermography and infrared imaging systems, “radiometric” refers to the system’s ability to accurately measure and provide intensity readings based on the infrared radiation emitted by objects and convert those readings into temperature information.

Radiometric sensors and cameras require special design rules to accurately measure infrared radiation. This design includes an athermal, aspheric optical design with superior infrared materials and less imperfections, infrared detectors sensitive to infrared radiation, optical filters, a blocking parasite, spectral bandwidth, and a thermal management concept. The manufacturing process includes a complex and time-consuming thermal calibration of the infrared sensors or cameras at different ambient and target temperatures.