Community Research and Development Information Service - CORDIS


GyroWing — Result In Brief

Project ID: 323522
Funded under: FP7-JTI
Country: France

New chip for miniaturised gyroscopes

Tiny machines with moving parts, microelectromechanical systems (MEMS), have now become an indispensable component of any piece of electronic equipment, from smart phones and tablets to cars and aeronautics. New innovative MEMS gyroscopes should now replace large mechanical gyroscopes in aircraft, providing navigation information about its position, heading and attitude.
New chip for miniaturised gyroscopes
Gyroscopes manufactured with MEMS technology are packaged similarly to other integrated circuits and may provide either analogue or digital outputs. However, a MEMS gyroscope typically contains multiple integrated circuits.

Within GYROWING (Highly integrated ultra-low-noise gyrometer solution for smart fixed-wing aircraft), researchers incorporated all required components into a single integrated circuit package. Unlike its multi-chip equivalent, a system-on-chip (SoC) offers advantages such as higher performance, lower power consumption, and smaller volume and weight.

The project team developed an application-specific integrated circuit (ASIC) for a commercial MEMS gyroscope. This high-performance solution is based on an ultra-low noise analogue front-end with all required peripherals.

One of the most important components in any analogue converter design is the analogue voltage reference. Integrating this system on an SoC helped compensate for errors introduced in the entire conversion process.

Power management can become particularly complex when high-accuracy inertial navigation systems require high-voltage supplies. Researchers integrated the power management circuit on the SoC, thereby facilitating high-efficiency power conversion. In addition, integration of feedback compensation paths limited distortion (non-linear phenomena) of high-frequency signals.

Decreasing the number of chips leads to a much cheaper development of aircraft inertial navigation systems using an SoC. Such systems are highly needed parts for drag reduction – a key target of the Smart Fixed Wing Aircraft (SFWA) programme.

Related information


MEMS gyroscopes, system-on-chip, ASIC, inertial navigation systems
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