Methods of tuning a notch filter to remove resonant frequency components
from an output signal of a vibration sensor. Some methods according to
the invention include exciting the vibration sensor with an excitation
signal including energy in a frequency band that may include a resonant
frequency of the vibration sensor, measuring the output signal of the
vibration sensor in response to the excitation signal, detecting a
frequency component of the output signal that corresponds to the resonant
frequency of the vibration sensor, and configuring the notch filter to
attenuate the detected frequency component. Related disk drives are also
disclosed