Britannica Sources used in this answer

Why does adaptive control need sensor measurements from its environment?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Jacquard loom engraving, 1874 — automation At the top of the machine is a stack of punched cards that would be fed into the loom to control the weaving pattern. This method of automatically issuing machine instructions was employed by computers well into the 20th century.

Adaptive control requires sensor measurements from its environment to enable the system to identify its current state and respond to variations in operation performance. By continuously monitoring environmental factors—such as tool wear, changes in workpiece hardness, or other unexpected shifts in machine behavior—the system can compare its actual performance against desired or optimum criteria.12

This process relies on three inherent principles:
* Identification: Using sensors to provide continuous information about the present state of the system or process.2
* Decision: Comparing current performance to the target and determining if a change is necessary to achieve the optimum.2
* Modification: Initiating adjustments, such as altering feed rates or spindle speeds, to correct the operation.12

Ultimately, these measurements are essential for protecting the machine, tool, and workpiece from damage caused by malfunctions or environmental changes, while also facilitating the development of unmanned automation techniques.13