What is a key advantage of digital over analog control systems?

A key advantage of digital control systems lies in their ability to provide more accurate and repeatable measurements. This stems from the inherent nature of digital technology, where information is represented in discrete values as opposed to continuous signals in analog systems.

Digital systems utilize sampling methods to convert analog signals into digital data, which can then be processed using sophisticated algorithms. This conversion not only enhances precision but also diminishes the effects of minor variations and noise that can distort measurements in analog systems. The repeatability of results also improves significantly, as digital technology can consistently execute the same operations without the drift that is often observed in analog components.

As a result, digital control systems are considered more reliable for applications that demand a high level of accuracy, such as process control in industrial settings, where precise measurement and control are crucial. This increased reliability and precision is one of the primary reasons for the growth and preference of digital systems over their analog counterparts in modern control system applications.