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Gyroscope - Department of Electronics & Telecommunication Engineering

A presentation on Gyroscope, and is presented by Prof. Varsha Degaonkar, from the department of Electronics & Telecommunication Engineering at International Institute of Information Technology, Iu00b2IT. Topics covered under this presentation are Principle of Operation, Rotary (classical) Gyroscopes, Vibrating Structure Gyroscopes, Specifications and Selection Criteria.

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Gyroscope - Department of Electronics & Telecommunication Engineering

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  1. gyroscope • Prof VarshaDegaonkar • Assistant Professor • Department of Electronics and Telecommunication • Hope Foundation’s • International Institute of Information Technology, I²IT • www.isquareit.edu.in https://en.wikipedia.org/wiki/Gyroscope

  2. Introduction Gyroscope • Used for navigation • Used for measuring angular velocity. • rotational velocity can be measured in 1, 2, or 3 directions. • 3 axis gyroscopes can provide a full 6 degree-of-freedom in motion tracking system with a 3-axis accelerometer https://en.wikipedia.org/wiki/Gyroscope International Institute of Information Technology, I²IT, P-14 Rajiv Gandhi Infotech Park, Hinjawadi, Pune - 411 057 Tel - +91 20 22933441 / 2 / 3 | Website - www.isquareit.edu.in ; Email - info@isquareit.edu.in

  3. Principle of Operation • Orientation is determined with use of Earth’s gravity • Evolved from mechanical-inertial spinning devices which consists of rotors, axles, and gimbals • Types of gyroscopes: • Rotary (classical) gyroscope • Vibrating Structure Gyroscope • Optical Gyroscope International Institute of Information Technology, I²IT, P-14 Rajiv Gandhi Infotech Park, Hinjawadi, Pune - 411 057 Tel - +91 20 22933441 / 2 / 3 | Website - www.isquareit.edu.in ; Email - info@isquareit.edu.in https://en.wikipedia.org/wiki/Gyroscope

  4. Rotary (classical) Gyroscopes • The law of conservation of angular momentum is used in the Rotary (classical) gyroscope. Which says that system will get constant angular momentum in direction and magnitude if the system has zero the resultant external torque . • It consists of : spinning disk or mass on axle, a series of gimbals • Additional degree of rotational freedom is given by gimbals. Fig. 1 Rotary Gyroscope https://en.wikipedia.org/wiki/Gyroscope International Institute of Information Technology, I²IT, P-14 Rajiv Gandhi Infotech Park, Hinjawadi, Pune - 411 057 Tel - +91 20 22933441 / 2 / 3 | Website - www.isquareit.edu.in ; Email - info@isquareit.edu.in

  5. Vibrating Structure Gyroscopes • Vibrating structure gyroscopes are MEMS (Micro-machined Electro-Mechanical Systems) devices • The operation uses principle of Coriolis force. • The Coriolis force is proportional to both the angular velocity of the rotating object and the velocity of the object moving towards or away from the axis of rotation. International Institute of Information Technology, I²IT, P-14 Rajiv Gandhi Infotech Park, Hinjawadi, Pune - 411 057 Tel - +91 20 22933441 / 2 / 3 | Website - www.isquareit.edu.in ; Email - info@isquareit.edu.in https://en.wikipedia.org/wiki/Gyroscope

  6. Specifications • Measurement range  • Number of sensing axes  • Nonlinearity • Working temperature range • Shock Survivability  • Bias Instability  • Angular Random Walk (ARW • Bias  • Bias Drift • Bandwidth International Institute of Information Technology, I²IT, P-14 Rajiv Gandhi Infotech Park, Hinjawadi, Pune - 411 057 Tel - +91 20 22933441 / 2 / 3 | Website - www.isquareit.edu.in ; Email - info@isquareit.edu.in

  7. Selection Criteria • Nonlinearity • Noise density • Bias repeatability • Acceleration sensitivity • Sensitivity to vibration • Sensitivity to linear acceleration–or g sensitivity • Environmental Factors- Temperature • Availability • Cost International Institute of Information Technology, I²IT, P-14 Rajiv Gandhi Infotech Park, Hinjawadi, Pune - 411 057 Tel - +91 20 22933441 / 2 / 3 | Website - www.isquareit.edu.in ; Email - info@isquareit.edu.in

  8. For further details please contact • Prof. VarshaDegaonkar • varshad@isquareit.edu.in • Department of Electronics & Telecommunication • International Institute of Information Technology, I²IT • P-14, Rajiv Gandhi Infotech Park, MIDC Phase I, Hinjawadi, Pune • www.isquareit.edu.in | info@isquareit.edu.in • Ph. - +91 20 22933441

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