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Receiver
This is the part of a system or device that detects a signal sent by a transmitter.
Rectangular (or Cartesian) Robot
A robot in which all motions are translational; that is along straight lines in three perpendicular directions.
Repeatability
Is a measure of the range of positions the robot will take when the arm is moved repeatedly to the same position.
RF
Stands for "radio frequency." Televisions, radios, cell phones and computer networks are just a few of the technologies that use RF. Many wireless home automation devices such as garage-door openers and intercoms use RF.
Robot
A computer-operated, mechanical body that works on its own to do a variety of jobs. Robots can be programmed, and reprogrammed to move material, parts, tools, or specialized devices through various motions. Robots are not presently "artificial people," but helpful tools used in specific environments. For the time being, most robots could be considered computers with limbs, organs, tools, and other pieces of equipment attached. However, experiments in artificial intelligence are changing the definition of a robot in many ways for the future.
Robotic arm
The limb of a robot that allows it to physically interact with other objects. A key function of the arm is to position the end-effector in the right place to do its job.
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