Magnetic Levitator DIY #LegaNerd

This version hangs objects below an electromagnet but it has a sensor system to provide a constant distance between magnet and object even if the payloads are a different weight. This is done with a couple of infrared sensors. One acts as a reference detector, always viewing an IR LED in order to get a baseline measurement. That measurement is compared to a second detector mounted slightly lower. The circuit adjusts the electromagnetic field, making sure the object is always breaking the lower beam but never interrupting the reference beam. No microcontroller needed, this is handled with a couple of OpAmps.

Fenomenale. Quando vedo gente che spende tempo e denaro in questo tipo di progetto mi sento veramente orgoglioso di essere nerd.

FTW!

Via Hack-a-day

Alessio Marinelli a.k.a. Defkon1

Software developer, appassionato di tutto ciò che è possibile smontare e rimontare in modo differente, ma anche di cinema, fumetti e cucina.

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