Sensors are devices that convert physical parameters into electrical signals that can be measured. They work by transmitting light or infrared radiation onto an object, and a receiver detects the reflected light. The signal is then amplified and processed. There are different types of sensors for factory and process automation, including inductive, capacitive, magnetic, ultrasonic, and temperature, pressure, level, and flow sensors. Sensors play a key role in automation by enabling control systems across various industries like manufacturing, food processing, and more, making lives easier, safer, and more productive through increased automation.

1. SenSorS

2. TopicS covered
1] What are sensor ?
2] How sensor work?
3] Types of sensor
4] Role of sensors in automation and its imp
5] application of sensor in daily life

3. 1] WhaT iS SenSor ?
Sensor are devices that convert physical
parameters or conditions into a signal
that can be measured electrically
.

4. 2] How sensor work
Light trnsmiter is an LED which radiates or infra red light .it
is sterred by generator to pulsing operation to create to high
radiation intensity for a short period. An object reflects
radiated light on to the receiver (photo diode and photo
transistor )
the signal received amplified and is synchronized with
the generator signal .this mode of signal evaluation result in
a distortion reduction . The signal will be integrated I the
comparator afterwards . In case signal exceed certain level
the output switches and function reserve indicator
activated . If required timers and functions reserve indicator
can be arranged before the output .

5. working of sensors

6. 3) Types of sensors
Factory automation sensor
 inductive sensors
Capacitive sensors
Magnetic sensors
Ultrasonic sensors
Special photoelectric sensors
Current transformers
Half effect sensors
Potential transformers

Process automation process
Temperature sensors
Pressure sensors
Level sensors
Flow sensors
Viscosity sensors

7. 4] Role of sensoRs in
automation
 Automation plays big role in world application like the
manufacturing of cars, planes and electronics the
preparation and packaging of foods and beverage &
processing of chemicals, oil and gas .
 Sensors are used in a wide range of control system that
makes lives for people easier , safer and moreproductive
both at work and at home through automation
 Automation is not possible without sensors

8. application of sensoRs