High-precision rotating disk with optical or magnetic patterns for position/speed detection in encoder systems
A precision-engineered rotating disk component within encoder systems that contains precisely patterned markings (optical lines, magnetic poles, or capacitive patterns) which interact with sensors to generate electrical signals corresponding to angular position, rotational speed, or linear displacement. The disk's pattern resolution directly determines the encoder's measurement accuracy and resolution.
诱因 → 失效模式 → 工程缓解
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Incremental disks have uniform periodic patterns that generate pulses for relative position measurement. Absolute disks have unique coded patterns (Gray code, binary) that provide unique position values for each angular position without requiring a reference point.
Glass disks offer superior thermal stability and precision for high-accuracy applications. Polymer disks provide better shock resistance and cost-effectiveness. Material choice affects thermal expansion, durability, and optical/magnetic properties.
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