Characterization of infrared systems : Infrared detector characteristics

Infrared detector characteristics
Characterization of infrared systems

Author : Gilbert GAUSSORGUES

Review date: August 30, 2021 | Lire en français

Add to my library

2. Infrared detector characteristics

Sensitivity

A flux of F radiation illuminating a detector causes a variation in electrical voltage or a variation in current at the receiver output (figure 1 ): $\begin{array}{l} d v = \frac{\partial v}{\partial F} d F + \frac{\partial v}{\partial i} d i = S_{v} \cdot d F + Z d i \\ d i = \frac{\partial i}{\partial F} d F + \frac{\partial i}{\partial v} d v = S_{i} \cdot d F + \end{array}$