Encoder
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The document discusses different types of encoders, including linear encoders, optical encoders, and rotary encoders. It describes the basic principles and components of encoders. It provides details on the construction, working, types, specifications, and applications of linear encoders, optical encoders, and rotary encoders. The presentation aims to educate engineers on the fundamentals of encoders.
Encoder
- 2. Presentation: Fundamentals Of Mechatronics
- 4. Presented To: Engr. Hafiz Khurrum Ali
- 5. Presented By: Ahmad Abbas 07-MCT-24 M. Umair Mirza 07-MCT-26 Abdul Rahman 07-MCT-36
- 6. SENSOR A device that produces a measurable response to a change in a physical condition CHOOSING A SENSOR Accuracy Calibration Cost Environmental Range Repeatbility Resolution
- 7. TYPES OF SENSORS Acceleration Angular/Linear position Chemical/Gas concentration Humidity Flow rate Force Magnetic field Sound
- 8. ENCODER A device used to change a signal or data to a code
- 10. ENCODER TYPES LINEAR ENCODER OPTICAL ENCODER ROTARY ENCODER
- 11. LINEAR ENCODER Scanning unit and Scale
- 12. CONSTRUCTION
- 15. TYPES OF LINEAR ENCODER ABSOLUTE LINEAR ENCODER INCREMENTAL LINEAR ENCODER
- 16. VERSIONS ENCLOSED LINEAR ENCODER EXPOSED LINEAR ENCODER METAL BASE LINEAR ENCODER
- 17. ENCLOSED LINEAR ENCODER USES
- 18. EXPOSED LINEAR ENCODER USES
- 19. METAL BASE LINEAR ENCODER
- 20. ADVANTAGES OF THESE VERSIONS Reduce breakage and system down time Eliminate costly maintenance Greater productivity Easily itegrated into existing system Good repeatbility
- 21. APPLICATIONS Machine control Automatic process Pick and place operations
- 23. OPTICAL ENCODER
- 24. Optical Encoder: Optical Encoder is a electro-mechanical device and is a digital position measuring device.
- 25. Principle: Its work on a principle of looking at pattern of alternating black and white segments.
- 26. Construction: Light source Light sensor Rotating Disk Shaft
- 27. Working:
- 28. Types: Regular Encoder Quadrature Encoder
- 29. Regular Encoder: It count number of transition but cannot tell the direction.
- 30. Quadrature Encoder: It uses two staggered pattern and tell which way the thing is turning.
- 31. Sensors used by Optical Encoder. Reflective Sensor Break Beam Sensor
- 32. Break Beam Sensor: More accurate but require precise mechanical allignment
- 33. Reflective Sensor Consist of LED and Photosensor
- 34. Models:
- 38. Specification: Temperature 0 to 60 degree Speed 600 RPM Weight 400 gms
- 39. Applications: N.C Machines Digital liquid level Neutron and X-Ray spectrometer
- 40. ROTARY ENCODER
- 41. Rotary Encoder: * Electromechanical Device * Convert position in to digital or analog code.
- 42. Types of Encoder: Absolute Incremental (relative)
- 43. Absolute Encoder: To determine angular position Incremental Encoder: To determine change in angular position
- 45. Consist two pulses Second pulse used to determine the direction of rotation of encoder wheel First pulse gave information of incremental and direction of rotation information
- 48. Segments: 100 to 6000 3.6 degree of resolution for 100 segment 0.06 degree of resolution for 6000 segment Segement: Opaque and Transparent
- 50. ABSOLUTE ENCODER
- 51. * Concentric Circles * Opaque and Transparent segment 512 segments in outermost ring of whose has 10 rings
- 52. Difference between Incremental and Absolute
- 53. Models
- 57. Applications: Robotics Photographic lenses Computer Input device e.g TrackBalls Radar plateform
- 58. Thanks!!!!!!!!!!