This presentation discusses wearable biosensors. It begins by introducing inertial sensors that can be embedded in the body to monitor human activity. It then defines biosensors as devices that detect biological analytes like biomolecules. Wearable biosensors combine wearables like smartwatches with biosensors. The main components of wearable biosensors are a biological element for sensing, a transducer that converts interactions to electrical signals, and electronic devices that process the signals. Examples provided are a ring sensor that monitors heart rate and oxygen levels using photoconductors, and a smart shirt that integrates sensors to monitor vital signs for applications like combat casualty care, medical monitoring, and sports performance.

1. WEARABLE SYSTEM
ATH EENA PANDIAN
TOPIC
Sensors for Wearable
system

2. Toda y's
Presentation
1.Intertial System
2.Biosensors
3.Wearable Biosensors
4.Types of Wearable Biosensors
5.Ring Sensor
6.Smart Shirt
7.Advantages and Disadvantages

3. Inertial sensors, including accelerometers,
gyroscopic sensors, and magnetic sensors,
can be embedded in the body, such as the
trunk, leg, arm, etc., for monitoring the motion
associated with human activities.
INTERTIALSENSO
R
Wearable system

4. Bio-sensors
Biosensors are devices used to
detect the presence or
concentration of a biological
analyte, such as a biomolecule, a
biological structure or a
microorganism.

5. W e a r a b l e B i o s e n s o r s i s
g e n e r a l l y a c o m b i n a t i o n
o f w e a r a b l e s a n
d b i o s e n s o r s .
W e a r a b l e s a r e o b j e c t s t h a t c a n
b e w o r n o n t h e b o d y .
F o re . g . s m a r t w a t c h e s , c l o
t h e s , b a n d a g e s , t a t t o o s ,
p a t c h e s ,
s p e c t a c l e s , r i n g s e t c . a r e
s o m e w e a r a b l e s .
Wearable
Biosensors

6. components of wearableThree main
biosensors are
•Biological element: For sensing the presence and
concentration of a substance.
•Transducer: The product of
interaction of biological component
and sample may be a suitable
chemical, charge etc., which can be
converted by transducer into an electrical signal.
•Associated Electronic Devices: The electrical signal
may be further amplified and can be read on digital
panels
Components
of
'WEARABLE
BIOSENSORS
'

7. TY PES OF
W EARABLE
BI O SEN SO RS Ring Sensor
Smart Shirt
1.
2.
1.Ring
Sensors
2.Smart Shirt

8. Wearable
Biosensors
Ring Sensor:
It allows one to continuously
monitor heart rate and oxygen saturation. The device
is shaped like a ring.
Smart Shirt:
This technology has been used to
integrate sensors for monitoring the vital signs like
temperature, heart rate and respiration rate.

9. Ring Sensor
1.It is a pulse oximetry, i.e. it monitors the oxygen
saturation.
2.It is based on the concept of photoconductor.
Principles :-
1.Detection pulsatile blood volume changes by
photoelectric method by photo resistor
2.Connected as a part of voltage divider circuit and
produces a voltage that varies with the amount of
blood in the finger.

10. Components of
Ring Sensor
1.LED’S AND PHOTODIODES
2.OPTICAL SENSOR UNIT
3.PIC MICROCONTROLLER
4.RF TRANSMITTER
5.TINY CELL BATTERY
6.USE OF DOUBLE RING
STRUCTURE.
7.FIRST STAGE AMPLIFIER
8.SIGNAL CONDITIONER
9.SAMPLE AND HOLD
CIRCUIT.

11. Smart Shirt
1.Also known as GTWM i.e. Georgia
2.Tech Wearable Motherboard.
3.This GTWM (smart shirt) provides an extremely versatile
framework for the incorporation of sensing, monitoringand
information processing devices.
4.It uses optical fibers to detect bullet wounds and special
sensors and interconnects to monitor the body vital signs
during combat conditions.
5.It is used to integrate sensors for monitoring the vital signs
like temperature, heart rate and respiration rate.

12. Application of Smart Shirt
1.Combat casualty care.
2.Medical monitoring.
3.Sports/ Performance monitoring.
4.Space experiments.
5.Mission critical/ hazardous
application.
6.Fire- fighting.
7.Wearable mobile information
infrastructure.

13. Advantages and
Disadvantages
WE A R A BL
E BI O SE N
SO R

14. Thank you
ATHEENA PANDIAN