![]() “Data acquisition” means data exchange in both directions: from the process to the system and vice versa. All this allows both the correct processing of data and a fast action on the control system through its actuators (motors, LEDs, speakers, etc.). ![]() The goal is to acquire data that are consistent over time and that correctly describe the shaping of the physical process. When the engineer is interested in controlling a physical process (light intensity, sound analysis, mass measure, position check, velocity, PID control, etc.) his first problem is to acquire the right information coming from one or more sensors, in some cases we talk about sensor strings or distributed sensors. ![]() The field of application ranges from research to automation, from industry to home automation, basically everything that in some way must be performed without human supervision.ĭata acquisition systems are primarily used to measure physical phenomena such as: temperature, voltage, current, strain and pressure, shock and vibration, distance and displacement, RPM, angle and discrete events, and weight. Data acquisition is a function that has a role of fundamental importance in the functions of automatic supervision and control because it relates the system (software and hardware architecture) with the process to be controlled (real world).
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