Principles of sensor error correction

The different principles of sensor error correction are classified with respect to intrinsic or extrinsic compensation techniques, analog or digital techniques, and integrated or discrete techniques, and typical examples are given. Advantages and disadvantages of the different methods are analyzed, and future trends are outlined. One logical continuation of these trends is the application-specific IC for sensor signal amplification and error correction. On the other hand, inexpensive multipurpose ICs (e.g. an A/D converter and a microprocessor together with a small primary electronics to adapt the IC to the individual sensor type) should also find applications