Robotic Arm

Robotic Arm Made by:Kartikeya AgarwalTanish Mittal

What is robotic arm???The term robot comes from the Czech wordrobota, generally translated as "forced labor." This describes the majority of robots fairly well. Most robots in the world are designed for heavy, repetitive manufacturing work. They handle tasks that are difficult, dangerous or boring to human beings.

What is robotic arm???The most common manufacturing robot is therobotic arm. A typical robotic arm is made up of seven metal segments, joined by six joints. The computer controls the robot by rotating individualstep motorsconnected to each joint (some larger arms use hydraulics or pneumatics). Unlike ordinary motors, step motors move in exact increments (check outAnaheim Automationto find out how). This allows the computer to move the arm very precisely, repeating exactly the same movement over and over again. The robot uses motion sensors to make sure it moves just the right amount.

What is Trigonometry Originally trigonometry was understood to define relations between elements of a triangle. In a triangle, there are six basic elements: 3 sides and 3 angles. Not any three line segments may serve as the sides of a triangle. They doiffthey satisfy the triangle inequality, or rather three triangle inequalities. Not any three angles may be the angles of a triangle. In Euclidean geometry, the three angles of a triangleadd up to a straight angle. These requirements impose limitations on the manner in which the relations between the elements are defined. In modern trigonometry these relations are extended to arbitrary angles. This can be done, for example, by observing the projections of arotating radius of a circle and a tangent at the end of the radius.

Rules of Trigonometry used in Robotics

Law of sinesIntrigonometry, thelaw of sines,sine law,sine formula, orsine ruleis anequationrelating thelengthsof the sides of any shapedtriangleto thesinesof its angles. According to the law,

where a, b, and c are the lengths of the sides of a triangle, and A, B, and C are the opposite angles (see the figure to the right), while d is the diameter of the triangle's circumcircle.

Law of cosine ruleIn trigonometry, the law of cosines (also known as the cosine formula or cosine rule) relates the lengths of the sides of a triangle to the cosine of one of its angles. The law of cosines states

wheredenotes the angle contained betweensides of lengthsaandband opposite the sideof lengthc.

Trigonometry and Robotic arm

By KeysToMaths1

Uses of Robotic ArmThe Shuttle's robotic arm has performed many kinds of tasks over the years. It has set satellites into orbit and retrieved others for repair. The first time Canadarm (space shuttle manipulator System) was used in one of many International Space Station (ISS) assembly missions was for MissionSTS-88, December 1998.

Uses of Robotic ArmThe robotic technology used in Canadarm (space shuttle manipulator System) provides humanlike dexterity here on Earth in a variety of environments. These may include servicing nuclear power stations, welding and repairing pipelines on the ocean floor, remote servicing of utility power lines, or cleaning up radioactive and other hazardous wastes.The Seaman Magnetic Resonance Centre in Calgary has teamed up withMDASpace Missions to adapt space robotics for use in surgery. The benefits are improved accuracy, efficiency, and the quality of patient care.

Uses of Robotic ArmA system developed originally to explore Mars has been transformed into an agricultural monitoring device for testing the quality of soil. It has the potential to reduce the environmental impact of farming.Dr Ebrahim Hoosen and Dr Lipalo Mokete used the transformative technology and saw two hip replacements and one partial knee replacement go off without a hitch.

FUTURE SCOPEIf more time and more efforts would have been put into the model, more complexity could have been brought out. Moreover instead of manual operation of switches and controller could have been replaced by pre-defined computer program or merely by pressing switch operated. Further more varieties and more flexibility to add or replace any part according to the requirements can be done to improve its use and increase field of usage and to make it more universal or flexible.

CONCLUSIONThe prepared mechanism has been successfully constrained and executed to carry out the required work of picking up the weight of the object like table tennis ball and to put them in to the placed at different location. This robot can be modified using some of the latest techniques to make it more flexible and addition of movable joints to increase its working capacity.

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