DAQ System Design: Sensors And Transducer

摘要

Data acquisition (DAQ) systems are the main instruments used in laboratory research by scientists and engineers, in particular for test and measurement, automation and so on. DAQ systems are typically general-purpose instruments suited for measuring voltage or current signals. Transducers can be used to detect a wide range of different physical phenomena such as movement, electrical signals, radiant energy, thermal, magnetic or mechanical energy etc. They are used to convert one kind of energy into another. However, many of their output signals have to be conditioned prior to entering a board and being transformed into digital signals.