Have you an idea about the noise generated by a linear actuator. Knowing that this noise is not mechanical. This actuator has coils in the stator part and magnets in the translator part .
There some reasons for noise. For example line voltage frequency, electronic devices noise, coil DC resistance.
It may be because any coil might look as antenna and/or parts of transformer (generally depending on the wavelength, inductance and size of coil). Industrial electromagnetic noise always is here.
Considering the various existing noise sources, it is convenient to perform a frequency analysis to compare noise to input signal.
I hope the link or file can provide general useful information and solution to reduce noise.
Yours sincerely,
JF Antoine
http://blog.tolomatic.com/electrical-noise-and-linear-actuators
Sometimes the problem is not on the actuator itself but on the reading unit or data acquisition/control system. What is the measuring chain?
To determine the noise origin, a FFT of the signal should be done. And based on the results stablish the source. For example if 50Hz (60Hz) frequency is present the noise is from a induction from the grid,
Thank you for all.
The cause is the alimentation type. My machine is sinusoidal and it had been supplied by a voltage trapezoid.
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