摘要:
Micro-gyro (10) has first flexures (27) which extend from anchor (25) which is connected to sense plate (30), where second flexures (37) extend from sense plate (30) to connect drive ring (40), where drive ring (40) is driven to oscillate about a drive axis, where first flexures (27) constrain sense plate (30) from moving about the drive axis but permit sense plate (30) and drive ring (40) to rock about a sense axis, wherein sense plate (30), drive ring (40) and flexures (27, 37) form a plate-ring-flexure system that is tuned to rock about a sense axis in a first or fundamental mode wherein plate (30) and ring (40) move substantially in phase at the lowest resonant frequency.
摘要:
A MEMS sensor (10) which includes a sense element (30) and a single anchor (28) that supports sense element (30) at a central aperture of sense plate (30), wherein anchor (28) uses connection elements or flexures (27) having a geometry that limits the motion of sense element (30) to a single degree-of-freedom, in order to reduce thermal stress.