🔬 The Sensing Process: From Physics to Data
Sensing is the process of detecting, measuring, and responding to a physical stimulus or change in the environment, and then converting that information into a signal that can be processed by an electronic system. It is the fundamental function that allows digital systems to interact with the real, analog world.
The device that performs this function is called a sensor (or sometimes a detector or transducer).
Detection (The Stimulus): The sensor's primary component (the receptor) interacts with a measurand (the property being measured), such as temperature, pressure, light, motion, or chemical concentration.