ABSTRACT
Most of the measurements described in this book use equipment that needs to be calibrated or carefully aligned, either on a regular basis or on a one-off basis. In this chapter we describe some of the methods and equipment that can be used for doing this. The calibration techniques described here do not include such parameters as linear and angular scales and the dimensions of test targets (e.g., four-bar minimum resolvable temperature difference [MRTD] targets). Although these are important, they make use of well-established techniques. Here we are concerned mainly with radiometric measurements and important optical characteristics.
