经常问的问题 - MicroE 光学编码器 - Celera Motion, A Novanta Company

MicroE 光学编码器

开始 / MicroE 光学编码器 / 经常问的问题

General Technology

1. What are optical encoders? 2. What types of rotary encoders does Celera Motion offer? 3. What determines the talbot plane (the z-height between the scale and the readhead)? 4. Are there downsides to a talbot imaging based optical encoder? 5. What optical encoders work in vacuum environments? 6. How is the encoder output frequency specified? 7. What solvent should be used to clean scales? 8. Is it possible to remove an adhesive-backed tape scale and then reuse it? 9. What adhesive should be used to mount a scale on a hub? 10. What is the difference between Magnetic vs. Inductive vs. Optical Encoders technology? 11. How is resolution determined for an application if the customer does not know the performance requirements? 12. What is MMA and how does it work? 13. How does resolution, accuracy and repeatability effect position feedback in a control system? 14. What is meant by the Celera Motion specific term “Megastate”? 15. How does scale eccentricity or bearing runout affect angular error?

Product Specific

1. If the Aura absolute optical encoder is within alignment tolerances, is calibration necessary for the published accuracy specification? 2. How do I know if the Aura absolute optical encoder is within alignment tolerances? 3. Can the Aura absolute encoder tolerate fingerprints on the scale? 4. What communication interfaces are supported by the Aura absolute optical rotary encoder? 5. Why do Mercury optical encoders use a laser in the sensor readhead? 6. For the Optira encoder, why does the analog version not need calibration, whereas the digital version requires a calibration step?

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