Electrical Gyroscopes

Mechanical and Electrical Noise in Sense Channel of MEMS Vibratory Gyroscopes

This paper presents a theoretical analysis of mechanical and electrical noise in the sense channel of micro-electromechanical systems (MEMS) vibratory gyroscopes. Closed-form expressions for the power spectral density (PSD) of the noise equivalent rate (NER) of gyroscopes in the open-loop and the force-rebalance operations are derived by using an averaged PSD model and an equivalent transfer fu...

Integrated Microelectromechanical Gyroscopes

Microelectromechanical ~MEMS! gyroscopes have wide-ranging applications including automotive and consumer electronics markets. Among them, complementary metal-oxide semiconductor-compatible MEMS gyroscopes enable integration of signal conditioning circuitry, multiaxis integration, small size, and low cost. This paper reviews various designs and fabrication processes for integrated MEMS gyroscop...

Ambulatory Gait Analysis Using Gyroscopes

Recently, technical progress has made possible to realize miniature kinematic sensors such as accelerometers and angular rate sensors (Sparks et al. 1998). These sensors can be battery powered and are promising tools for ambulatory gait monitoring and analysis. The possibility to detect simple parameters such as steps and cycle time from trunk or heel acceleration has already been demonstrated ...

Stable fiber-source gyroscopes.

We describe two new configurations of fiber gyroscopes that use superfluorescent fiber laser sources. In the first configuration we introduce a backward-pumping technique that achieves an order-of-magnitude increase in the power that can be launched into the gyroscope without instabilities. In the second configuration we employ the optical gain of the superfluorescent fiber laser source to ampl...

Fiber Optic Gyroscopes