Sine wave track for inductive position sensing

[Shack]

This subject has been discussed a few times before

Code to write sine/cosine curves for angle sensor

Yep I found those Zettlex products first and have a folder of all the useful images of them I could find. Here’s one showing the active board which has a more regular pattern. [INMOCO258_Ultra_Incoder_series_expanded_pic1_PR6237_35767] If anyone could figure out how they work, this code could be adapted to make those patterns. But they are very serious about their patents so I was glad to find the Renesas! It seems with the renesas you can do arbitrarily high pole counts and get more resolut…

How to route sine/cosine patterns for an angle sensor?

Have you noticed that Renesas has some “Inductive Coil Design Tool Software” for designing the PCB sine curves? [image] Source: https://www.renesas.com/us/en/products/sensor-products/position-sensors/ips2200-inductive-position-sensor-high-speed-motor-commutation KiCad-nightly V5.99 has an importer for altium files, but it’s hidden in some way because it’s not ready yet. However, if that software can generate Gerber files, then you can back-import them into a regular KiCad project with KiCad…

A pretty cool script was also made for it.

GitHub - sequoia-hope/induction_encoder: python scripts and other files to generate...