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A gyroscope capable of operating under high g-force (20,000 g), capable of taking measurements while undergoing acceleration
About
Background Current MEMS gyroscopes require flexible members in their designs, which are an essential feature for measuring angular rate. Examples include ring, cylinder hemispherical and beam based vibratory gyroscopes. This design leads to low flexural rigidity and fragile devices resulting in inaccuracies in the output of the Gyro (due to drift), or catastrophic failure. Under high acceleration (>20,000g), fractures can occur in the gyroscopes rendering them useless. Mechanical stops have been used to avoid excessive strain, but this prevents operation of the gyroscope under high acceleration. Technology Overview By using Rayleigh waves with a circular wave-front, researchers at Newcastle University have been able to isolate the sensing mechanics from the underlying substrate.
Key Benefits
Reduced drift Gyroscopic measurements whilst undergoing acceleration Capable of operating under high g-force (>20,000 g) Simplified manufacturing method
Applications
Depending on substrate selection, devices can be made to cater for: Low-cost, high-volume markets, such as consumer and healthcare applications Performance applications requiring measurements under high g-force including applications in aerospace