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In robotics, a manipulator is a device used to manipulate materials without direct physical contact by the operator. The applications were originally for dealing with radioactive or biohazardous materials, using robotic arms , or they were used in inaccessible places.
A manipulator can move an object with up to 6 degrees of freedom (DoF), determined by 3 translation 3T and 3 rotation 3R coordinates for full 3T3R mobility. However, when a manipulation task requires less than 6 DoF, the use of lower mobility manipulators, with fewer than 6 DoF, may bring advantages in terms of simpler architecture, easier control, faster motion and lower cost. [2]
Since f is a module homomorphism between free modules, it can be visualized as an (infinite) matrix with entries in R and M as its cokernel. A free presentation always exists: any module is a quotient of a free module: , but then the kernel of g is again a quotient of a free module: ′ . The combination of f and g is a free presentation of M.
Manipulator arms inside the Hot Bay of the Engine Maintenance Assembly & Disassembly Facility, in Area 25 of the Nevada Test Site.. A remote manipulator, also known as a telefactor, telemanipulator, or waldo (after the 1942 short story "Waldo" by Robert A. Heinlein which features a man who invents and uses such devices), [1] is a device which, through electronic, hydraulic, or mechanical ...
Well-known examples of curvilinear coordinate systems in three-dimensional Euclidean space (R 3) are cylindrical and spherical coordinates. A Cartesian coordinate surface in this space is a coordinate plane ; for example z = 0 defines the x - y plane.
Cartesian manipulators are driven by mutually perpendicular linear actuators. They generally have a one-to-one correspondence between the linear positions of the actuators and the X, Y, Z position coordinates of the moving platform, making them easy to control. Furthermore, Cartesian manipulators do not change the orientation of the moving ...
The Cylindrical Energy Module (CEM) is a sine-wave swashplate engine that can also be used as a standalone pump, powered by an external source. The rotating swashplate rotor assembly is moved back and forth with the help of piston drive pins, which follow a stationary sinusoidal cam track that encircles the rotor assembly.
Mobile Manipulator systems; mobile platform, robot manipulator, vision and tooling. A mobile robotic system combines the mobility offered by a mobile platform and dexterity offered by the manipulator. The mobile platform offers an extended workspace to the manipulator and more degrees of freedom to operate in. However, the operation of such a ...