Robotics, Automaton and Automation Design Robot Manipulator Remote Operation Device by Jun Chen Robot Manipulator is a handheld control device for operating a medical robotic arm. The body is made of carbon fiber and aluminum, a combination that increases strength and reduces weight. The device is held and moved by the hand, and many sensors inside convert hand movements into signals. The signals are sent to a processor, which controls the robotic arm along multiple dimensions and coordinates. The robotic arm returns feedback that matches the hand movement. Precise tasks can be carried out at a distance, including work in dangerous conditions.