The Handbook's coverage of sensors is extensive, ranging from simple photodiodes to complex devices containing components in combination. It offers hard-to-find reference data on the properties of numerous materials and sensing elements and emphasizes devices that are less well-known, whose technology is still being refined, and whose use permits the measurement of variables that were previously inaccessible. TOC:Data Acquisition.- Sensor Characteristics.- Physical Principles of Sensing.- Optical Components of Sensors.- Interface Electronic Circuits.- Occupancy and Motion Detectors.- Position, Displacement, and Level.- Velocity and Accleration.- Force, Strain and Tactile Sensors.- Pressure Sensors.- Flow Sensors.- Acoustic Sensors.- Humidity and Moisture Sensors.- Light Detectors.- Radiation Detectors.- Temperature Sensors.- Chemical Sensors.- Sensor Technologies.- Appendix.