We use the FDC2214 in the mechanical arm for the satefy protection, and we measures its LC oscillation frequency to recogize the obstacle,
We need the proximity sensing to measure the more than 15cm effective distance for the protection function;
now, we set the full range about 2.5*10^7Hz, and the minimum scale is 4000Hz, now, because the noise of the mechanical arm( Like EMI and so on),
there are larger than +/-2000Hz noise that it is influence the testing precision and the effective distance is less than 15cm;
Pleaes kindly advise how to remove the noise, thanks.