Abstract: A hybrid wafer gyroscope includes a combination of micro-machined components and traditional electromechanical components to form a miniature gyroscope having a high degree of stability. The gyroscope includes a rotor, gimbal, flexures, and stop cutouts micro-machined out of one or more layers of silicon, forming a unitary, planar, and disk-shaped rotor subassembly, which spins about a drive shaft.

Abstract: A process of identifying and cleaning carbide entities. In the preferred embodiment of this invention, a visual indicating reacting composition is placed in a tank. An example of such a compound is a weak solution on the order to magnitude of one tenth molar or less of copper sulfate. After preparation of this bath, a large plurality of used tungsten carbide tools are dumped into the bath. Tools are allowed to sit in the bath for periods extending from five seconds to several hours depending on the strength of the bath and the thickness of the coating. When a characteristic orange color appears on a significant plurality of the tools sitting in the bath, the tank is drained of the copper sulfate solution and the tools are dumped upon a flat surface for visual inspection and segregation of the copper colored tools from the clear ones. After segregation, the copper colored tools are placed in a second bath.