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Department of
Electronics & Communication Engineering
Implementation dc motor as
servomotor by using arduino
and optical rotary encoder
Clifton Jeremy Martis
4NM19EC043
02
Department of ECE
• Introduction
• Uses of servo motor
• Components
• Conclusion
Introduction
• When we control a motor by means of
servomechanism, it would be referred as
servomotor.
• Servomotor was first developed by Yaskawa in
1960s.
• A servo motor provides accurate and also fast
response.
03
Introduction
• With servomotors we can get high torque in a
small and light weight packages.
• There are two types of servomotors. They are
AC servomotors and DC servomotors.
•
04
Fig. 1 DC servomotor
Fig. 2 AC servomotor
Uses of servomotor
Some of the uses are
• Cameras
• Telescopes
• Antennas
• Elevator technology
• Robotics and conveyor belts for industries
• Toy cars, aeroplanes
05
06
Fig. 3 industrial robots
Fig. 4 conveyor belts
fig. 5 antenna
Components
• DC motor
• Optical rotary encoder
• Motor driver
• Arduino microcontroller
07
08
Department of ECE
• DC motor is a device which converts direct
current electrical energy into mechanical
energy.
• They are simple to install and easy to maintain
Fig. 6 DC motor
Optical Rotary Encoder
• An optical rotary encoder is a device which
detects optical signals that have passed
through the slits, converts them into electrical
signals.
• It has a light source (LED), light sensor and a
disk called optical disk with slits.
09
Fig. 7 optical rotary encoder
Optical Rotary Encoder
• The light source is typically an LED. Instead of
using a visible light, an infrared light is usually
transmitted.
• The light sensor is a photodiode which is
sensitive to infrared light.
10
Optical Rotary Encoder
• A disk used is placed between the light source
and the light sensor. It is connected to the
shaft of the motor.
• As the disk is rotated, light passes through a
translucent slots and is blocked by the opaque
areas between the slots.
11
Fig. 8 Optical Rotary Encoder diagram
12
Motor driver and Arduino
• A motor driver acts as an interface between a
motor and control circuit.
• The Arduino microcontroller doesn’t provide
high output power
• The motor driver helps in providing sufficient
power to the motor.
13
14
Fig. 9 motor driver
Fig. 10 Arduino uno
15
Department of ECE
• It was required to built a servo motor with
wide rotation angle and high torque.
• We have used a DC motor with gearbox,
motordriver and an optical encoder.
• While the cost of a servo motor increases as
the rotation range gets wider.
• Therefore a servomotor using an optical rotary
encoder will reduce the cost.
16
17
Department of ECE
[1] Ali Abdyaseer Kadhum , Munther Mohammed Abdulhussein,
Implementation dc motor as servomotor by using arduino and optical
rotary encoder, Elsevier, pp. 01- 05, 2021.
[2] Moyeed Abrar, interfacing a servo motor with Arduino uno
microcontroller, International Journal of Recent Scientific Research Vol.
10, Issue, 02(E), pp. 31010-31014, February, 201
20
Department of ECE
Clifton Jeremy Martis
4NM19EC043

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seminar 4nm19ec043.pptx

  • 1. Department of Electronics & Communication Engineering Implementation dc motor as servomotor by using arduino and optical rotary encoder Clifton Jeremy Martis 4NM19EC043
  • 2. 02 Department of ECE • Introduction • Uses of servo motor • Components • Conclusion
  • 3. Introduction • When we control a motor by means of servomechanism, it would be referred as servomotor. • Servomotor was first developed by Yaskawa in 1960s. • A servo motor provides accurate and also fast response. 03
  • 4. Introduction • With servomotors we can get high torque in a small and light weight packages. • There are two types of servomotors. They are AC servomotors and DC servomotors. • 04 Fig. 1 DC servomotor Fig. 2 AC servomotor
  • 5. Uses of servomotor Some of the uses are • Cameras • Telescopes • Antennas • Elevator technology • Robotics and conveyor belts for industries • Toy cars, aeroplanes 05
  • 6. 06 Fig. 3 industrial robots Fig. 4 conveyor belts fig. 5 antenna
  • 7. Components • DC motor • Optical rotary encoder • Motor driver • Arduino microcontroller 07
  • 8. 08 Department of ECE • DC motor is a device which converts direct current electrical energy into mechanical energy. • They are simple to install and easy to maintain Fig. 6 DC motor
  • 9. Optical Rotary Encoder • An optical rotary encoder is a device which detects optical signals that have passed through the slits, converts them into electrical signals. • It has a light source (LED), light sensor and a disk called optical disk with slits. 09 Fig. 7 optical rotary encoder
  • 10. Optical Rotary Encoder • The light source is typically an LED. Instead of using a visible light, an infrared light is usually transmitted. • The light sensor is a photodiode which is sensitive to infrared light. 10
  • 11. Optical Rotary Encoder • A disk used is placed between the light source and the light sensor. It is connected to the shaft of the motor. • As the disk is rotated, light passes through a translucent slots and is blocked by the opaque areas between the slots. 11
  • 12. Fig. 8 Optical Rotary Encoder diagram 12
  • 13. Motor driver and Arduino • A motor driver acts as an interface between a motor and control circuit. • The Arduino microcontroller doesn’t provide high output power • The motor driver helps in providing sufficient power to the motor. 13
  • 14. 14 Fig. 9 motor driver Fig. 10 Arduino uno
  • 15. 15 Department of ECE • It was required to built a servo motor with wide rotation angle and high torque. • We have used a DC motor with gearbox, motordriver and an optical encoder.
  • 16. • While the cost of a servo motor increases as the rotation range gets wider. • Therefore a servomotor using an optical rotary encoder will reduce the cost. 16
  • 17. 17 Department of ECE [1] Ali Abdyaseer Kadhum , Munther Mohammed Abdulhussein, Implementation dc motor as servomotor by using arduino and optical rotary encoder, Elsevier, pp. 01- 05, 2021. [2] Moyeed Abrar, interfacing a servo motor with Arduino uno microcontroller, International Journal of Recent Scientific Research Vol. 10, Issue, 02(E), pp. 31010-31014, February, 201
  • 18. 20 Department of ECE Clifton Jeremy Martis 4NM19EC043