Consider the following statements relating to the term ‘Robot Repeatability:

1. It is a statistical term associated with accuracy in the action.

2. It is a measure of the ability of the robot to position the tool tip in the same place repeatedly

3. It does not described the error with respect to absolute coordinates.

Which of the above statements are correct?

Concept:

Robot Repeatability:

• It is the ability of the robot to reposition itself to a position to which it was previously commanded or trained.
• Repeatability and accuracy are similar, however, they define slightly different performance concepts.
• It is a statistical term that is widely used in Robotics which associates the accuracy of robots in action.
• Robot Repeatability is a measure of the ability of the robot to position the tool-tip in the same place again and again.
• Repeatability is doing the same task over and over again, while accuracy is hitting your target each time, and also it does not describe the error with respect to absolute coordinates.