编码器信号闪烁的原因和故障排除提示
编码器信号闪烁或跳跃是编码器脉冲形状的不一致，并且经常被误认为是抖动。编码器抖动通常具有不一致的模式，而通过放大和缩小脉冲波可以更突出地看到闪烁，但是通常是随机地发生。
Encoder Signal Flicker: Causes and Troubleshooting Tips
Encoder signal flicker or jump is an inconsistency in encoder pulse shape and can often be mistaken for jitter. Encoder jitter will usually have a pattern of inconsistency while flicker can be seen more prominently by zooming in and out of the pulse wave but occur somewhat randomly.
编码器信号闪烁的最可能原因
插值通过在数据点之间插值来增加编码器的有效分辨率。例如，该技术可用于将脉冲1800 PPR编码器翻倍以充当3600 PPR编码器。插值假设两个脉冲在大小，频率，对称性和面对方面相同。例如，如果对称性存在偏差，则当示波器在第一个脉冲上触发时，迹线将跳转。
Most Likely Causes of Encoder Signal Flicker
Interpolation increases the effective resolution of the encoder by interpolating between data points. The technique can be used to double up an 1800 PPR encoder to act as a 3600 PPR encoder, for example. Interpolation assumes that the two pulses are identical in size, frequency, symmetry, and facing. If there is a deviation in symmetry, for example, the trace will jump when the scope triggers on the first pulse.
快速故障排除提示
信号看起来是方波吗？
它是否以特定周期闪烁或跳跃？
Quick Troubleshooting Tips
Does the signal appear to be a square wave?
Does it flicker or jump with a specific periodicity?
诊断
对于使用插值的编码器，这是正常操作的一部分。要回答的问题是闪烁是否超出规范，应咨询编码器数据表以确定问题是否在操作规范范围内。如果应用需要精确信号或检测到痕量运动，则具有直读真实分辨率（未内插）的编码器可能更适合。
Diagnosis
For encoders using interpolation, this is part of normal operation. The question to answer is whether the flicker is out of spec and the encoder datasheet should be consulted to determine if the issue is within the operating specification. If the application requires precise signals or detection of trace amounts of motion, an encoder with direct-read true resolution (not interpolated) may be better suited.
声明：原文来源于DYNAPAR编码器官方网站，翻译由爱泽工业，版权归原作者所有。
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声明：
- 文章转载自网络，版权归原作者所有！
- 翻译：爱泽工业（如有偏颇，敬请指正）
