Robust feedback control design of an ultra-sensitive, high bandwidth tunneling accelerometer

Robust feedback control design of an ultrasensitive, high-bandwidth, tunneling accelerometer is reported. The control design uses the H_∞ loop-shaping technique to shape the loop to achieve high disturbance rejection, noise attenuation, and robustness to parameter variations. While the design was performed on a linearized plant, nonlinear simulations of the tunneling accelerometer device demonstrate that the accelerometer can accurately sense forces over its control bandwidth even when its parameters have been perturbed away from their nominal values that were used in the control design.