Sensor Technology
Contents
* sensors
* Types of sensors
* Uses of sensors
* Examples of sensors
* Advantages
* Disadvantages
* Limitations
* Conclusion
SENSOR
A Sensor is a device that receives and response to a signal.
 A Sensors sensitivity indicates how much the sensors output changes when the measured
quantity changes.
Example :You can say that our skin ,ears ,eyes and noise are also a sensor because they can
sense touch , heat, light, noise and smell.
For accuracy , most of the sensors are calibrated against some known standards..
Types of sensors
USES
Sensors are used in daily every day objects such as touch sensitive elevator and lamps which
dim or brighten by touching the base.
There are innumerable applications of this technology of which most of the people are not
aware.
It applications include cars, machines, aerospace ,medicines ,manfracturing and robotics
Sensor taps
 Automatic Sensor is easy
to install and is simple to
use as well.
 As you place your hand
under the opening of the
tap, the water will flow
automatically and when
we remove ur hand the
water flow will stop.
 This happens due to inbuilt
of sensors in the tap
AUTOMATIC STAIRS
 Its starts running and stops automatically as it
senses the presence or absence of the person.
Infrared sensors
 THESE INFRARED SENSORS ARE USED IN
SMART DEVICES…
 THESE INFRARED SENSORS ARE ALSO
USED IN HOTELS…
Photo electric
sensor
o These are used in street lights and
automatic stairs.
o The street lights automatically
turns on and off as
the
Sunrisers and sunsets
o This is implemented by using photo
electric effect .
o The street lights automatically
turns on and off on the basis of
darkness measured by a sensor
TOUCH SENSOR
 Touch Sensor work similar to a
switch.
 When they are subjected to
touch,pressure or force they get
activated and acts as a closed
switch..
 When the pressure or contact is
removed they act as an open
switch..
Advantages of sensors
It avoids a lot of wiring
It can accommodate new devices at any time
It is flexible to go through physical partitions
It can accessed through a centralized monitor
Sensors such as PIR detectors are relatively cheap if using wired versions
Presented by
CH.HARI PRIYANKA
Regd no:178H1A0418