Unit 5 - Mechatronics, Hydraulic and Pneumatic actuationFME&M
Unit 5 - Mechatronics, Hydraulic and Pneumatic actuationFME&M
Unit 5 - Mechatronics, Hydraulic and Pneumatic actuationFME&M
Introduction to
Mechatronics
Introduction to Mechatronics
What is Mechatronics?
Action Control
Sensing the
environment
(feedback)
Components of a Mechatronic System
Vision Bionics
• The bionic eye—or visual neuro prosthesis, as vision bionics are sometimes called—are
bioelectronic implants that restore functional vision to people suffering from partial or
total blindness.
• Researchers and device manufacturers who are designing bionic eyes confront two
important challenges: the complexity of mimicking retinal function and the consumer
preference (and constraint) for miniature devices that can be implanted into the eye.
• The camera, integrated into eyeglasses,
captures images and transmits them to the
portable processing unit, which wirelessly
sends electrical signals to the implanted
array. The array, in turn, converts these
signals into electrical impulses that
stimulate the retinal cells that connect to
the optic nerve.
Auditory
Bionics
2. Bevel Gears
Bevel gears are a type of gear used to transmit
power from one axis to another non-parallel
axis. Bevel gears have slanted teeth, which
actually makes the shape of their "pitch
diameter" a cone. This is why most bevel gears
are classified based on the distance from the
rear face of the gear to the imaginary tip of the
cone that the gear would form if its teeth
extended out.
3. Worm Gears
• A worm gear is a gear driven by a worm,
which is a small, screw-like piece that
meshes with the gear. The gear rotates
on an axis perpendicular, but on a
different plane than, the worm.
• Worm gears can thus be used to
drastically reduce the speed and
increase the torque of a system in only
one step in a small amount of space. A
worm gear mechanism could create a
gear ratio of 40:1
4. Helical Gears
Helical gears are a more efficient type of
spur gear. The teeth are set at an angle to
the axis of rotation, so they end up curving
around the gear instead of straight up and
down like spur gears. Helical gears can be
mounted between parallel axes, but can also
be used to drive non-parallel axes as long as
the angled teeth mesh.
Belt Drive
• A belt is a loop of flexible material
used to link two or more rotating
shafts mechanically, most often
parallel.
• Belts may be used as a source of
motion, to transmit power efficiently
or to track relative movement.
• Belts are looped over pulleys and
may have a twist between the pulleys,
and the shafts need not be parallel.
Bearing
• A bearing is a machine element that
constrains relative motion to only the desired
motion, and reduces friction between
moving parts.
• Bearings support the rotating shafts of the
wheels, gears, turbines, rotors, etc. in those
machines, allowing them to rotate more
smoothly.