Patent ID: 6715352
Filing Date: 2004-04-06
Classification: G01C

Abstract:
A method of setting the drive and sense frequencies of a gyroscope having a drive mass and a sense mass coupled together by a flexure assembly comprising:selecting a drive stiffness, Kd; selecting geometric parameters of said flexure assembly to obtain a desired drive frequency, &ohgr;d; selecting a configurational parameter of said flexure assembly to obtain a desired sense frequency, &ohgr;s; and determining whether said gyroscope has obtained desired performance and size envelope characteristics; where said flexure assembly includes at least one pair of flexures, and where selecting a configurational parameter of said flexure assembly to obtain a desired sense frequency, &ohgr;s, comprises selecting an angle which said pair of flexures makes to each other; and where said flexure assembly comprises two diametrically opposing pairs of flexures and where selecting an angle which said pair of flexures makes to each other comprises setting a dihedral angle between each of said flexures of said two diametrically opposing pairs.