A force rebalance accelerometer (20) includes a silicon dioxide-based proof mass (28) having capacitive elements (40) engaged with excitation rings (61) made from alloys of Super Invar. The magnet assembly (60) includes an excitation ring (61), a magnet (63), and a pole piece (65). The Super Invar of the excitation rings (61) substantially matches the coefficient of thermal expansion of the silicon dioxide-based proof mass (28) to substantially reduce distortion signals caused by temperature changes. Movement of the accelerometer causes the capacitive elements (40) to produce a signal proportional to the movement acceleration and not by temperature changes experienced by the accelerometer.