Examples of devices
Vibrating mechanical gyroscopes

In short, vibrating gyroscopes can operate in either gyrometer or gyroscope mode, depending on the type of resonator used. The practical realization of mechanical resonators leads to a wide variety of devices. The first requirement for a resonator is a high quality factor, i.e. the largest possible resonator damping time constant (remember that the time constant of Foucault's pendulum in the Pantheon was around 2 hours!). Depending on the concept and technology used, the result can be found in a very wide range of performances and costs, from the rustic and inexpensive gyrometer for automotive applications (navigation with GPS (Global Positioning System) satellite receiver, active suspension...) to the high-performance and reliable gyroscope for space applications.

The main requirements for a good resonator are as follows: