Most medical device engineers start by asking how accurate a motion system is. The more experienced ones ask a different question: how accurate will it still be after millions of motion cycles? That shift in thinking helps explain why Rack & Pinion remains a serious contender in some of the world’s most advanced medical systems.
Most systems do not fail suddenly. Filters clog gradually, pumps lose efficiency over time, and vacuum systems drift out of specification long before a fault alarm appears. In many cases, the earliest warning sign is not temperature, vibration, or power consumption – it is a subtle change in differential pressure (ΔP). This article explains why Differential Pressure is one of the most valuable indicators of developing failures, how Pressure Switches, Vacuum Switches, and Differential Pressure Switches are used for early fault detection, and why the most important parameter in your system may not be pressure itself, but the small change that appears long before the failure becomes visible.
