Precision optical or magnetic disc/scale for angular/linear position encoding in industrial automation systems.
A high-precision rotating disc or linear scale with precisely patterned tracks (optical, magnetic, or capacitive) that works with a sensor to convert mechanical position into digital signals for closed-loop control in motion systems.
诱因 → 失效模式 → 工程缓解
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Incremental discs generate pulses for relative position tracking, requiring a reference point, while absolute discs provide unique position values immediately upon power-up without homing.
Contamination (dust, oil) can obstruct optical paths, temperature variations cause thermal expansion affecting accuracy, and vibrations may introduce signal noise, requiring proper sealing and mounting.
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