2. 2
1. INDROUCTION
2. WHAT IS HAPTIC?
3. HAPTIC FEEDBACK
4. WORKING PRINCIPLE
5. HAPTIC DEVICES
6. ULTRA HAPTICS
7. ADVANTAGES
8. DISADVANTAGES
9. FUTURE VISION
10.APPLICATIONS
11.CONCLUTION
3. 3
Haptics is a technology of adding the
sensation of touch and feelings to the
computer.
When virtual objects are touched,they
seem real & tangile.
It senses links to the brain’s sensing
position and movement of the body by the
means of sensory nerves within the
muscles and joints
4. HAPTICS=INTERACTIONBETWEENHUMANS AND
COMPUTERSORVIRTUALWORLD
• Haptic technology is a tactile feedback
technology which takes advantage of the sense
of touch by applying force, Vibrations or motions
to the user.
• Haptics is the science of applying touch
sensation and control to interaction with the
computer.
• Haptic device gives people a sense of touch with
computer generated environment ,So that when
virtual objects are touched they seem real and
tangible
4
5. Haptics is implemeneted through different type of
interactions with a haptic device communicating with the
computer.These interactions can be categorized into the
different types of touch sensations a user can receive.
Tactile Feedback
Refers to the sensations felt by the skin.It allows the user to feel
things such as the texture of surfaces,temperature and vibration.
Force Feedback
It reproduces the directional forces that can result from solid
boundaries.
Eg:The weight of virtual objects ,inertia etc…
5
6. 6
Basically a haptic system consist of two parts namely the
HUMAN PART and the MACHINE PART
In the figure shown,the human part(left) senses and control
the postion of the hand,while the machine part (right) exert
forces the hand to stimulate contact with a virtual object.
Also both the systems will be provided with nessasary
sensors,processors and actuators.
In the case of the human system,nerve receptors performs
Sensing,brain performs processing and muscles
performsactuation of the motion performed by the hand.
While in the case of the machine system,the above
mentioned functions are performed by the
encorders,computer and motors respectively.
7. Providing 3 D touch to virtual objects .
Provides 6 d.o.f
When the user move his finger then he could really feel
the shape and size of the virtual 3D object that has been
already programed.
Virtual 3 diamentional space in which the phantom
operates is called haptic sense.
8. 8
The cyber grasp system fits over the
user’s entire hand like an exoskeleton
and adds resistive force feedback to
each finger.
There are five actuators,one for each
finger,which can be individually
programed to prevent user’s fingers
fom pentetrating or crushing a virtual
solid object.
Adapted to different size of the fingers.
Located on the back of the hand
2.CYBERGRASP
9. 9
In ultra haptics we create tactile
sensations in mid air.
No controllers or wearables are
needed :the patented “virtual touch”
technology uses ultrasound to
project shapes and textures directly
onto the user’s hand.
Conrols can be operated without
touching a surface,gestures can be
enchanced with tactile feedback and
users can interact in a natural way
with virtal reality.
10. 10
Working time is redued.
Communication is centered through touch and the digital world
can behave like the real world.
Increase confidence in medical field.
With haptic hardware and software designer can feel the result as if
he were handling the physical object.
11. 11
Higher cost.
Large weight and size(especially for wearable ones).
From point of algorithm ,output is not saturate.
The precision of touch require a lots of advance
design.
Haptic interfaces can only exert forces with limited
magnitude and not equally well in all directions.
12. HOLOGRAPHIC INTERACTION
The feedback allows the user to interact with a hologram and actually receive
tactile responses using acoustic radiation pressure.
MEDICAL APPLICATION
Use of a central workstation from which surgeons would perform operations in
various locations ,with machine setup and patient preparation performed by local
nursing staff.
TEXTILE INDUSTRY
User could study and feel the texture and quality of material during the sale of
cloth through internet.
11
13. 13
Enterinment –Computer and Video games
It is used to enchance the gaming experience .Haptic
feedback is commonly used in arcade games
,especially racing video games.It is also used in
movies.
Virtual surgery(Practicing the surgery)
We can do virtual surgery by using haptic technology.
Personal computers
Apple’s MacBook and MacBook Pro started
incoperating a “tatctile touch pad “ design.
14. 14
Haptic Technology is the only solution which provides high range of
interaction that cannot be provided by virtual reality.
Continued implementation of tctile devices to aid people with disablities will
advance further.
Toadys ,commercial success of haptic has been in the areas of entertainment
,medical simulation,and design ,although new devices and applications are
regularly appearing.
Haptic technology will make the future world as a sensible one.
