What is Smart sensor?
Shift to Smarter sensor
Top IoT Smart Sensors
Gas & Smoke Sensor
Motion Detection Sensor
Water Quality Sensor
A Smarter World
Pros and Cons
We would like to thank our teachers Mr. Ayushman
Banerjee sir and Mrs. Nira Konar ma’am for his excellent
guidance and immense support, throughout this presentation.
A special note of thanks to our friends and classmates, who
directly or indirectly helped us in making this presentation a
5. What is Smart Sensor?
A sensor is basically an element that produces a
signal relating to the quantity to be measured.
A sensor producing an output when combined with
some interfacing hardwares is termed to be an intelligent
or smart sensor, which is a more acceptable term now.
Sensors + Interfacing Hardwares = Smart Sensors
This type of sensor is different from other type
because it carries out functions like ranging, calibration and
decision making for communications and utilization of data.
6. Now a days, sensors
with many sensing
elements within a
single silicon chip,
accuracy , user-
sensors smarter and
It uses both standard
bus or wireless
one another or with
consists of a chain of
analog and digital
blocks, each of which
provides a specific
Shift to Smarter Sensors
First Generation Devices
Little electronics with MEMS(Micro-
element combined with analog
amplification on a micro chip.
Fourth Generation Sensors
Addition of memory cells for
Third Generation Sensors
Digital Intelligence and temperature
compensation on the same micro chip as before.
Second Generation Sensors
Pure analog system. Had MEMS sensor with
analog amplification and ADC converter
Fifth Generation Sensors
Equivalent to intelligent or today’s
The Internet of Things is the concept of
connecting any device to the Internet and to
other connected devices. The IoT is a giant
network of connected and share data about
the way they are used and about the
environment around them.
That includes an extraordinary number of
objects- from smart microwaves, which
automatically cook your food, to self- driving
cars, and then to wearable fitness devices that
measure your heart rate and uses information
to suggest exercise plans.
12. Top IoT Smart Sensors
Gas & Smoke Sensor
Motion Detection Sensors
13. Temperature Sensors
A device, used to measure amount of heat energy that allows to
detect a physical change in temperature from a particular source and
converts the data for a device or user, is known as a Temperature
Thermisters RTD Infrared Sensor IC (Semiconductor)
14. Proximity Sensors
A device that detects the presence or absence of a nearby object, or
properties of that object, and converts it into signal which can be
easily read by user or a simple electronic instrument without getting
in contact with them.
Ultrasonic Sensor PhotoElectric Sensor Capacitive Proximity Sensor
15. Pressure Sensors
A pressure sensor is a device that senses pressure and converts it
into an electric signal. Here, the amount depends upon the level of
Air Pressure Sensor Water Pressure Sensor Low Pressure Sensor
16. Gas & Smoke Sensors
Gas sensors re specifically used to monitor changes of the air quality
and detect the presence of various gases. A smoke sensor is a device
that senses smoke (airborne particulates & gases ) and it’s level.
LPG Sensor Alcohol Sensor
17. Accelerometer Sensors
Accelerometer is a transducer that is used to measure the physical or
measurable acceleration experienced by an object due to inertial
forces and converts the mechanical motion into an electrical output.
18. Level Sensors
A sensor which is used to determining the level or amount of fluids,
liquids or other substances that flow in an open or closed system is
called Level sensor.
Liquid Level Sensor Capacitive Level Sensor Float Type Level Sensor
19. Motion Detection Sensors
A motion detector is an electronic device which is used to detect the
physical movement(motion) in a given area and it transforms motion
into an electric signal ; motion of any object or motion of human
Sensor Microwave Sensor
20. Optical Sensors
A sensor which measures the physical quantity of light rays and
convert it into electrical signal which can be easily readable by user or
an electronic instrument/device is called optical sensor.
Photodetecter Pyrometer Infrared Sensor Proximity Sensor
21. Gyroscope Sensors
A sensor or device which is used to measure the angular rate or
angular velocity is known as Gyro sensors. The most important
application is monitoring the orientation of an object.
Ring Laser Gyroscope Optical Gyroscope Digital Gyroscope Vibrating Gyroscope
22. Water Quality Sensors
Water quality sensors are used to detect the water quality and Ion
monitoring primarily in water distribution systems.
pH Sensor Turbidity Sensor Water Conductivity Sensor
23. A Smarter World
Portable Water Monitoring
Chemical Leak Detection
Perimeter Access Control
Explosive and Hazardous
Forest Fire Detection
Snow Level Monitoring
Pros and Cons
High Reliability and
Easy to Design, Use and
Small Rugged Packaging
and Flexible System
Contains both actuators &
sensors, so complex circuitry
Cost of Wired Smart
Sensors are higher
Calibration requires an
Functions have to be given
during the design
Special thanks to all the resources:
◇ Presentation template by SlidesCarnival
◇ Information by SlideShare,
Electronicsforu and Finoit.com/blog
◇ Diagrams by AllPPT