Haptic technology enhances human-computer interaction by providing tactile feedback that makes virtual objects feel real, relying on sensory nerves and brain processing. It consists of a human system and a machine system, both equipped with sensors and actuators to simulate contact with virtual objects. Applications span entertainment, virtual surgery, and personal devices, with future potential in areas like medical applications and holographic interactions.

1. HAPTICS
TECHNOLOGY
(TOUCH THE VIRTUAL)

2. INTRODUCTION
Haptics is a technology of adding the sensation of touch and
feeling to computers.
When virtual objects are touched, they seem real and tangible.
It senses links to the brain's sensing position and movement of
the body by means of sensory nerves within the muscles and
joints.

3. HAPTICS…???
 Derived from Greek word ‘haptikos’ meaning “Able to come into contact
with” .
 Haptics = Touch = Connection
 Touch is at the core of personal experience.
 Of the five senses, touch is the most proficient, the only one capable of
simultaneous input and output.

4. VIRTUAL REALITY
 Virtual reality is a form of human-computer interaction
providing a virtual environment that one can explore through
direct interaction with our senses.

5. THE REAL WORLD
 User should be able to touch the virtual object and feel a
response from it.
 In order to complete the imitation of the real world one
should be able to interact with the environment and get a
feedback.
 This feedback is called Haptic Feedback.

6. SYSTEM CONFIGURATION
4
3
2
2
4 3
1
1
End effector
Hand
Actuators
Muscles
Sensors
Virtual object
Machine
Human
Computer
haptics
Sensors

7. WORKING PRINCIPLE
 Basically a haptic system consist of two parts namely the
human part and the machine part.
 In the figure shown above, the human part (left) senses and
controls the position of the hand, while the machine part
(right) exerts forces from the hand to simulate contact with a
virtual object.
 Also both the systems will be provided with necessary
sensors, processors and actuators.

8. WORKING PRINCIPLE
 In the case of the human system, nerve receptors performs
sensing, brain performs processing and muscles performs
actuation of the motion performed by the hand.
 While in the case of the machine system, the above
mentioned functions are performed by the encoders,
computer and motors respectively.

9. HAPTIC DEVICES
PHANTOM INTERFACE CYBER GRASP SYSTEM

10. COMMONLY USED HAPTIC DEVICES
1. PHANTOM
 providing a 3D touch to the
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
programmed
 virtual 3 dimensional space in
which the phantom operates is
called haptic scene

11. PHANTOM WORKING

12. CYBER GRASP
 The Cyber Grasp system fits over the
user's entire hand like an exoskeleton
and adds resistive force feedback to
each finger
 Allows 4 dof for each finger
 Adapted to different size of the fingers
 Located on the back of the hand.
 Measure finger angular flexion (The
measure of the joint angles are
independent and can have a good
resolution given the important paths
traveled by the cables when the finger
shut

13. INTERESTING FACTS
 Most of us would have experience the use of this technology
in movies like iron man ,avatar .
 Disney Research, Pittsburg (DRP) has shown off a
revolutionary technology called ‘Surround Haptic’ that can
bring real life experience in video gaming and film watching.
 In Apple IPhone 6 For advance vibration unit they have used
haptic technology .
 Haptic is designed to give tactile sensations to people who
are using motion control devices. The device can track a
target, like a user's hand, and send a compressed ring of air
quickly through the intervening space to provide haptic
feedback.

14. LIMITATIONS
 High cost involved
 Large weight and size of haptic devices (especially wearable
ones)
 Haptic interfaces can only exert forces with limited magnitude
and not equally well in all directions
 Haptic-rendering algorithms operate in discrete time whereas
users operate in continuous time

15. FUTURE VISION
 Holographic Interaction
The feedback allows the user to interact with a hologram and
actually receive tactile response 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.

16. APPLICATIONS
 Entertainment-
Computer and video games -
It is used to enhance the gaming
experience .Haptic feedback is
commonly used in arcade games,
especially racing video games. It is also
used in movies.
 Virtual Surgery – we can do virtual
surgery by using haptic technology .

17. APPLICATIONS

18. APPLICATIONS
 Personal computers-
Apple's MacBook and
MacBook Pro started
incorporating a
"Tactile Touchpad" design.
 Mobile devices-
Tactile haptic feedback
is becoming common
in cellular devices. Nokia
and LG implemented
it using piezoelectric
sensor pads.

19. CONCLUSION
 Haptic Technology is the only solution which provides high
range of interaction that cannot be provided by virtual reality.
 Continued implementation of tactile devices to aid people
with disabilities will advance further.
 Todays, 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.