A motion sensing system comprising: a microelectromechanical accelerometer (12, 200), comprising: a suspended spring-mass system, comprising a proof mass suspended by a plurality of couplings (214a, 214b), the plurality of couplings (214a, 214b) are configured to restrict motion of the proof mass along a static axis, wherein the proof mass is configured to be movable along a sense axis in response to a linear acceleration in a direction of the sense axis, and wherein the proof mass is configured to be static along the static axis in response to the linear acceleration due to the plurality of couplings (214a, 214b) restricting motion of the proof mass along the static axis; an auxiliary electrode located adjacent to the proof mass in a direction of the static axis, wherein an auxiliary drive signal having an auxiliary drive frequency is appliable to the auxiliary electrode; a sense electrode located adjacent to the proof mass in the direction of the sense axis, wherein a sense drive signal having a sense drive frequency is appliable to the sense electrode; and processing circuitry coupled to the proof mass to process a received signal from the proof mass, to determine acceleration based on a portion of the received signal that is associated with the sense drive signal, to identify an error based on a portion of the received signal that is associated with the auxiliary drive signal, and to perform compensation for the accelerometer (12, 200) based on the identified error; wherein the proof mass is configured to be static along the static axis in response to the applied auxiliary drive signal due to the plurality of couplings (214a, 214b) restricting motion of the proof mass along the static axis. a microelectromechanical accelerometer (12, 200), comprising: a suspended spring-mass system, comprising a proof mass suspended by a plurality of couplings (214a, 214b), the plurality of couplings (214a, 214b) are configured to restrict motion of the proof mass along a static axis, wherein the proof mass is configured to be movable along a sense axis in response to a linear acceleration in a direction of the sense axis, and wherein the proof mass is configured to be static along the static axis in response to the linear acceleration due to the plurality of couplings (214a, 214b) restricting motion of the proof mass along the static axis; an auxiliary electrode located adjacent to the proof mass in a direction of the static axis, wherein an auxiliary drive signal having an auxiliary drive frequency is appliable to the auxiliary electrode; a sense electrode located adjacent to the proof mass in the direction of the sense axis, wherein a sense drive signal having a sense drive frequency is appliable to the sense electrode; and a suspended spring-mass system, comprising a proof mass suspended by a plurality of couplings (214a, 214b), the plurality of couplings (214a, 214b) are configured to restrict motion of the proof mass along a static axis, wherein the proof mass is configured to be movable along a sense axis in response to a linear acceleration in a direction of the sense axis, and wherein the proof mass is configured to be static along the static axis in response to the linear acceleration due to the plurality of couplings (214a, 214b) restricting motion of the proof mass along the static axis; an auxiliary electrode located adjacent to the proof mass in a direction of the static axis, wherein an auxiliary drive signal having an auxiliary drive frequency is appliable to the auxiliary electrode; a sense electrode located adjacent to the proof mass in the direction of the sense axis, wherein a sense drive signal having a sense drive frequency is appliable to the sense electrode; and processing circuitry coupled to the proof mass to process a received signal from the proof mass, to determine acceleration based on a portion of the received signal that is associated with the sense drive signal, to identify an error based on a portion of the received signal that is associated with the auxiliary drive signal, and to perform compensation for the accelerometer (12, 200) based on the identified error; wherein the proof mass is configured to be static along the static axis in response to the applied auxiliary drive signal due to the plurality of couplings (214a, 214b) restricting motion of the proof mass along the static axis.