4
Level Control – Controlling the Level of Liquid to Avoid Drying Up or Spilling Over
Are you trying to fill a bottle or a glass with water? The main aspect you would focus on is to fill the bottle or the glass with its desired contents of water, and second, to avoid over-filling—that is, to avoid spill-over while filling. You need to manually ensure that the liquid in the bottle or the glass does not spill over via visual inspection. In addition, what if someone needs a refill? You would need to ensure that as soon as the glass becomes empty, it is refilled without spilling over. Well, all these activities are manual and occur at a relatively low speed. Similar requirements exist in industry as well, and this brings us to the important control ...
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