This chapter deals with uncertainty aspects of measuring systems. It starts with a review of the most important terms expressing sensor behavior, as a tool for making a fair assessment of the system’s requirements and performance. The effect of intrinsic sensor limitations can be reduced by special configurations and procedures. They are also effective against errors caused by environmental influences. Methods to reduce errors due to sensor deficiencies and environmental factors are compensation, feedback, filtering, modulation and demodulation, and correction.
Sensor specifications; additive and multiplicative errors; error compensation; measurement bridge; feedback; modulation; modulators; synchronous detection ...