Lunchtime Session: Encoder Noise? Or something else?
Content:
Probably, you have experienced noise on encoder signals already many times in practical life? Which first looks like an EMC problem, turns into a systematic behavior which can be explained and even be quantified in an equation:
calulation of the encoder quantization
The number kencoder of periods per encoder revolution has a big impact on the quantization effect. The higher the encoder resolution, the less visible becomes the encoder quantization ∆V.
Take a look to the attached video dealing with this topic. Also feel free to download the demo project for "PLC Designer" to explore the topic in practical tests.
