Sensor Technology
Defined as 'devices that receive stimuli and respond with electrical signals', sensors are one of the most essential pillars of any intelligent electronics system. They form an interface between the physical world, determined by the laws of physics, and the digital world, which interprets the information provided for use in a wide range of applications.
Nowadays, sensor technology appears in new application fields and mass markets such as automotive, smart city infrastructures, and industrial automation & control. These areas use large arrays of sensors for collecting data that serve as inputs to the main control system, enabling intelligent decision-making.
The growth of smart phones and the IoT has spawned the development of many more types of sensors, especially the highly integrated, intelligent, low-power sensors. A few are designed to sense physical properties and others detect motion or proximity (using optical & light) and flow among others. Various technologies are used to achieve these objectives, including inductive, magneto-resistive, ultrasonic, optical, pressure, and capacitive.
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