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Robotics & Automation vocabulary · Motion and Kinematics

Repeatability

Meaning in robotics & automation, with examples

/rɪˌpiːtəˈbɪləti/nounCommon term

In robotics & automation, repeatability means: How closely a robot returns to the same taught point again and again. Data sheets give it as a small value, for example ±0.03 mm.

In Turkish: tekrarlanabilirlik, tekrar hassasiyeti, tekrarlama hassasiyeti

How it is used

A key number when choosing robots for precise tasks like assembly or dispensing. Robots are usually much better in repeatability than in absolute accuracy, so points taught on the real part are more reliable than points calculated only in CAD.

Example sentences

  1. The robot's repeatability is ±0.02 mm, which is fine for inserting the pins.

  2. Poor repeatability after the crash told us that something in the gearbox was damaged.

Common collocations

  • position repeatability
  • high repeatability
  • repeatability of ±0.05 mm
  • repeatability test
  • accuracyHow close a robot gets to a commanded position that was not taught on the robot, for example a point calculated from a CAD model. Also called absolute accuracy.
  • calibrateTo adjust or measure a robot, sensor or instrument against a known reference so that its readings or positions are correct.
  • industrial robotA programmable machine, usually an arm with several axes, that does production tasks such as welding, painting, handling or assembly on its own and with high repeatability.
  • teachIn robotics, to move the robot to a position and save that position in the program, so the robot can return to it automatically later.
  • tool center pointThe reference point at the working tip of the robot's tool, such as the tip of a welding wire or the center between gripper fingers. The robot moves and positions this point.

More terms: Motion and Kinematics

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