Precision sensor for measuring angular position, speed, and direction in rotary encoders and resolvers.
A critical sensing element within rotary encoders and resolvers that detects mechanical rotation and converts it into precise electrical signals (digital pulses or analog sine/cosine waves) for position, velocity, and direction feedback in closed-loop control systems.
诱因 → 失效模式 → 工程缓解
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Incremental sensors output pulse trains (A/B channels) for relative position changes and require a reference point. Absolute sensors provide a unique digital code for each shaft position, retaining position after power loss.
Resolver sensors use inductive coupling between rotor and stator windings to produce analog sine/cosine signals, offering high robustness in harsh environments. Optical sensors use light patterns for higher resolution but are sensitive to contamination.
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