STL files for a simple soft electromagnetic actuator (SEMA)
Today, I received an email from a master’s student about the dimensions of the square SEMA in our paper “Soft electromagnetic actuators”. Here, I just upload the original STL files for the fabrication of the SEMA.
I also have written a post about how to simulate the magnetic field and fitting which can be found in A method to fitting the magnetic field of a plate magnet. | Rocket Mao (maolab.cn)
Link to our paper: Soft electromagnetic actuators (science.org)
Updated 2022-10-12 10:21:15
Receive a Email asking the power supply.
Control system design for SEMA actuation
Questions:
On a related note, we are using a motor driver board with high current capabilities to actuate the SEMA and the signal is sourced from a signal generator (GWINSTEK AFG-2125). However, we have observed that when the signal generator is disconnected from the SEMA, the output peak-peak voltage holds, but when connected it is very low, on the order of a few mVolts as opposed to Volts. Have you experienced this type of phenomenon during your research?
Answer:
For the power supply, it is reasonable that the signal generator cannot deliver high power. You need an external power supply such as an amplifier (https://archiv.ew.tf.fau.de/leihgeraete/datasheet/Q023_D.pdf). I also find a document that may help you to build such a setup: https://www.accelinstruments.com/Applications/TS200/high-current-amplifier.html, it should not be so difficult.