POSITION AND MOTION SENSORS n Linear Position: Linear Variable Differential Transformers (LVDT) n Hall Effect Sensors u Proximity Detectors

Modern linear and digital integrated circuit technology is used throughout the field of position and motion sensing. Fully integrated solutions which combine linear and digital functions have resulted in cost effective solutions to problems which in the past have been solved using expensive electro-mechanical techniques. These systems are used in many applications including robotics, computer-aided manufacturing, factory automation, avionics, and automotive. This section is an overview of linear and rotary position sensors and their associated conditioning circuits. An interesting application of mixed-signal IC integration is illustrated in the field of AC motor control. A discussion of micromachined accelerometers ends the section