A shaft or actuator is a mechanical component that transmits motion or force in position sensors like potentiometers and encoders, enabling precise measurement of angular or linear displacement.
In position sensors such as potentiometers and encoders, the shaft or actuator serves as the primary mechanical interface that converts physical movement into measurable electrical signals. It typically connects to the rotating or sliding element of the sensor, transferring motion from the external system to the internal sensing mechanism. This component must maintain precise alignment and minimal backlash to ensure accurate position feedback in industrial automation, robotics, and motion control systems.
诱因 → 失效模式 → 工程缓解
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A shaft is a passive rotating or linear component that transmits motion, while an actuator may include additional mechanisms (like gears or linkages) to initiate or control movement. In many sensors, the terms are used interchangeably for the input element.
Consider load, speed, environmental exposure (e.g., moisture, chemicals), and precision requirements. Stainless steel offers corrosion resistance, carbon steel provides strength, and plastics reduce weight and friction.
Backlash arises from gaps between mating components or wear. It is minimized through precise machining, tight tolerances, anti-backlash mechanisms, and regular maintenance.
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