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A digital sensor is an electronic or electrochemical sensor, where data is digitally converted and transmitted. Sensors are often used for analytical measurements, e.g. the measurement of chemical and physical properties of liquids. Typical measured parameters are pH value, conductivity, oxygen, redox potentials, and others. Such measurements are used in the industrialized world and give vital input for process control.
Sensors of analogue type were used in the past, but today more and more digital sensors are used. This article describes the difference between them and discusses the reason for the development of digital sensors.
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