Gyroscopes for Stabilization Applications

Small scale, precision, stabilized platforms are used across a wide variety of applications. They are particularly suited to pointing subsystems such as a camera, laser range finder, radar and antenna on a given target while the mounted platform is moving. Adapting a sensing system from a fixed mounted use to mobile use requires consideration of a number of criteria such as vibration and stabilization. InnaLabs high performance tactical grade CVG gyroscopes with their excellent stability, low noise and the highest mean time before failure (MTBF) on the market, offer an ideal solution for all your stabilization needs.

Numerous factors may affect stabilization accuracy which can be external to the gyroscope, for example shock and vibration due to weapon recoil and electromagnetic interference; or internal, such as noise or bias drift levels of the sensor. While all the above requirements are important for these types of systems, it is also necessary to keep in mind price versus performance.

There are a number of different technologies that can be used for the development of gyroscopes for stabilization applications. MEMS gyroscopes offer a small form factor and are relatively low cost, however in comparison to InnaLabs® gyroscopes, they typically exhibit higher bias over temperature and high noise. This tends to make MEMS unsuitable for high accuracy applications. They are also less tolerant to the shock and vibration environments which are encountered in many stabilization applications. Gyroscopes for Stabilization Applications.

Mechanical gyroscopes (e.g. DTGs) generally provide good performance but do not compare favourably with solid state technologies, such as CVGs, in terms of reliability and robustness, particularly when subjected to shock and vibration. The large number of component parts and the use of bearings to support the spinning mass result in a mean time before failure (MTBF) which is over an order of magnitude less than achieved by InnaLabs® CVG gyros.

The InnaLabs CVG operates using well known Coriolis Gyro principles. The sensing element design is based on the use of a cylindrical metal resonator with piezoelectric elements used for driving and detecting the vibrational motion. This ‘solid state’ structure is extremely robust and reliable and can tolerate very high levels of shock and vibration without any detrimental effects on performance.

The high gain of the piezoelectric elements delivers best in class noise performance. The control electronics operates in a closed loop mode providing a high system bandwidth which is essential when operating in highly dynamic environments. The combination of these design features has enabled InnaLabs® to produce a highly competitive range of tactical and industrial grade performance gyros. These deliver extremely low noise and Angular Random Walk together with good bias stability and high bandwidth, all at a competitive price and with high availability. With the market leading MTBF of >500,000hrs, the through life system costs are also reduced, making the InnaLabs® CVG family of gyroscopic sensors the preferred option for modernization programs and new developments.

For more details about InnaLabs 2000 Series Tactical Grade Gyroscopes:

InnaLabs
Dublin, Ireland
Tel: +353 1 809 6200
Email: [email protected]
http://www.innalabs.com

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