Lecture 6 Year 2

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Lecture 6 - Year 2

• Robotics - Sensors

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What we will cover

• Revision - Lecture 5
• Sensors
• Exam example questions

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Lecture 5 - Revision

• Types of End Effectors
• Power Source

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Sensors

• Why do you need sensors?
• 2 Main Groups
• external
• internal

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External Sensors

• The list is endless we will focus on
• Touch
• Proximity
• Range

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Touch Sensors

• Two purposes
• Binary Touch Sensor
• More sophisticated - human finger

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Simple Binary SensorMechanically Operated Switch
Bumper
Lever
Spring
Contacts
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Tactile SensorShape information using force
sensors
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Proximity Sensors

• Detects an object is near the sensor without
  physically touching it.
• Optical Proximity Sensors
• Reflection
• Light Barrier
• Electro-magnetic Induction

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Range

• Time of flight sensors
• RADAR
• Laser Range Finders
• Ultrasonics

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Internal Sensors

• Joint Space
• Potentiometer
• Pulse Generator
• Force and Torque

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Interlocks

• External / Internal
• An operation cannot be performed until certain
  pre-conditions exist.

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Course Content

• Computer Integrated Manufacturing
• Automation of Metal Cutting Process
• Robotic Configurations Terminology
• Robotic Actuators
• Types of End Effectors their Power Supply
• Sensors

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Past Exam Question Areas

• Describe types of sensors.
• What factors would you consider in gripper
  design?
• Critically discuss the mechanical configurations.
• A cell is described, you are asked to sketch a
  layout, state assumptions how you would
  recognise parts - sense them.