## Proximity Sensors and Range Sensors

Proximity sensors are devices that indicate when one object is done another object. How close the object must be in order to activate the sensor is dependent on the particular. The distances can be anywhere between several...

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## Considerations in Gripper Selection and Design

Most of this chapter has been concerned with grippers rather than tools as end effectors. As indicated in before section tools are used for spot welding, arc welding, rotating spindle operations, and other processing...

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## Magnetic Grippers in Robotics – theteche.com

Magnetic grippers can be a very feasible means of handling ferrous materials. The stainless steel plate in example would not be an appropriate application for a magnetic gripper because 18∼8 stainless steel is not attracted by...

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## Robot Arm Dynamics – theteche.com

The topic of robot dynamics is concerned with the analysis of the torques and forces due to acceleration and deceleration. Torques experienced by the joints due to acceleration of the links, as well as forces experienced by the...

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## Reverse Transformation of the 2-Degree of Freedom Arm

In many cases it is more important to be able to derive the joint angles given the end-of-arm position in world space. The typical situation is where the robot’s controller must compute the joint angles required to move its...

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## A 3-Degree of Freedom Arm in Two Dimensions

The arm we have been modeling is very simple; a two-jointed robot arm has little practical value except for very simple tasks. Let us add to the manipulator a modest capability for orienting as well as positioning a part or...

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## A 4-Degree of Freedom Manipulator in Three Dimensions

Figure illustrates the configuration of a manipulator in three dimensions. The manipulator has 4 degrees of freedom: joint 1 (type T joint) allows rotation about the z axis; joint 2 (type R) allows rotation about an axis that is...

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## Robot Sensors and Actuators – theteche.com

A robot moves in space to perform tasks and hence it needs actuators to move the links and sensors to know where each joint is. Sensors inform the controller by how much each joint has moved and thus enables the controller to...

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## Four Types of Robot Controls – theteche.com

Commercially available industrial robots can be classified into  four categories according to their control system. The types of robot controls : Limited sequence robots Playback robots with point to point control Playback...

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## Configuration of a Robot Controller

We can develop a general configuration for a robot controller. The elements needed in the controller include: joint servo controllers, joint power amplifiers, mathematical processor, executive processor, program memory, and input...

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