In this video, I have tested my Flexible PCB actuator and also compared it to my Linear PCB Motor which has the same dimensions but different layer count.
The measured data is shown bellow:
|4-Layer Linear PCB Motor||2-Layer Flex PCB Actuator|
|Maximum Temperature @ 5V||51°C||76°C|
The flex PCB has half the turns, so its resistance is lower. This means that more current can pass through it, so obviously it gets a little hotter. This means that this flexible pcb actuator can be used with lower voltages. The thin dielectric of this pcb also improves the coupling of the magnetic field.