CLOSED LOOP CONTROL TECHNIQUES FOR DISPLACEMENT SENSORS WITH OPTICAL READOUT

摘要

An apparatus includes a network of switchable coils suspended in a magnetic field, wherein a topology of the network of switchable coils may be configured to change at least one characteristic of a sensor, and an optical detector to detect displacement of the coil in response to a stimulus. The apparatus further includes a feedback circuit coupled to the optical detector and to the network of switchable coils.