Haran Yös

 Gyroscope
 Properties of Gyroscopes
 History of Gyroscopes
 Applications of Gyroscopes
 Types of Gyroscopes available
 Future Work
WHAT IS A GYROSCOPE?
DEFINITION :
A gyroscope is a device for measuring or maintaining
orientation, based on the principles of conservation of
angular momentum.
GYROSCOPE
PROPERTIES OF
• Gyroscopes have two basic properties:
GYROSCOPES
• Rigidity and Precession
These properties are defined as follows:
1. RIGIDITY: The axis of rotation (spin axis) of the gyro
wheel tends to remain in a fixed direction in space if no
force is applied toit.
2. PRECESSION: The axis of rotation has a tendency to turn at a
right angle to the direction of an applied force
History of
Gyroscopes
 Johann Bohnenberger created the first know
gyroscope, calling it simply the“machine”.
 Pierre-Simon Laplace recommended the “machine”
be used as a teachingaide.
 Leon Foucault coins the name “gyroscope” when he
uses Bohnenberger’s “machine” in an experimentinvolving
the earth’s rotation.
 – The first gyroscope for marine navigation was
developed by German inventor Hermann Anschutz-
Kaempfe.
History of Gyroscopes
(Contd.)
 The “Chandler gyroscope” toy was invented bythe
Chandler Company in Indiana. It is still considered a
classic American toy.
 During World War II, the gyroscope became the prime
component for aircraft and anti-aircraft gun sights.
 Charles Stark Draper Laboratory demonstrated one
of the first MEMS or “Vibratory” gyroscopes fabricated in
silicon.
Applications of Gyroscopes
A. In Aeronautics and Aviation:-
funduszeue.info control flying devices, helicopters, some
hovercraft, some planes, etc. rely on gyroscopes to
prevent them from flipping over or going into a spin.
Applications of Gyroscopes
(Contd.)
funduszeue.inforaft rely on gyroscopes for orientation while
in space.
funduszeue.infoft and aircraft autopilots rely on gyroscopes to
account forchanges in direction & altitude
Applications of Gyroscopes
(Contd.)
B. In Naval field
funduszeue.infoope are used in ships to maintain stability as
the effect of gyroscopic couple is on:-
(a.) Steering
(b.) Pitching
(c.) Rolling
Application of Gyroscopes (Contd.)
C. In automobiles
funduszeue.infoopic behaviour is used in the racing car
industry. This is because car engines act just like big
gyroscopes. Because of the of the gyroscopic forces
from the engine depending on whether the engine is
spinning clockwise or anti-clockwise the cars nose will
be forced up ordown.
Application of Gyroscope (Contd.)
Applications of Gyroscopes
(Contd.)
2. Wheels on motorbikes act as gyroscopes and make
the bike easier to balance (stay up right) when moving.
Applications of Gyroscopes
(Contd.)
D. In toys and everyday uses
funduszeue.infoopes are used in various toys such as yo-yos
and Frisbees. Some other toy products are Gravitron
and ChikyuGoma.
Applications of Gyroscopes
(Contd.)
E. In electronics andgadgets
funduszeue.infoopes are used in various fields nowadays such
as in smartphones, video game controllers, computer
mouses and presentation mouses.
Applications of Gyroscopes (Contd.)
Types of Gyroscopes available
 Spinning Mass Gyro
 Mass spins steadily within the gyro with free movables axis
(gimbals).
 Optical Gyroscope
 Laser rays reflect many times within an enclosure, any changes in
orientation will be registered as changes between the moment of
the laser emittance to eventual reception.
 Vibrating Gyroscope
 Determines rate of turn by a vibrating resonator and its change in
vibrations from the original vibrating direction.
 Gas Rate Gyro
 Sprays gas on heated coils, when a change in direction occurs the
spray is curved resulting in a change in the temperature of the coils.
(Currentlyunpractical because of the numerous factors involved
Types of Gyroscopes available
(Contd.)
 Mechanical Gyroscope
A mechanical gyroscope is essentially a spinning wheel or disk
whose axle is free to take any orientation. This orientation changes
much less in response to a given external torque than it would without
the large angular momentum associated with the gyroscope's high rate
of spin.
Types of Gyroscopes (Contd.)
Types of Gyroscopes (Contd.)