Applications requiring a very high sensor bandwidth typically use an auxiliary sensor for high bandwidth tasks, for example, a piezoelectric sensor can be used for active resonance damping [43,41]. Technologies such as piezoresistive sensors [91] have also shown promise in high-speed applications since a carrier frequency is not required. Magnetoresistive sensors are also suitable for high frequency applications if the changes in field strength can be kept small enough to mitigate hysteresis [18,19