vb.net barcode reader from image FROM HERE in Software

Drawer QR Code in Software FROM HERE

28.5 FROM HERE
QR Code Scanner In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Make QR-Code In None
Using Barcode encoder for Software Control to generate, create QR Code image in Software applications.
FIGURE 28-19 A two-pincher gripper (from the plastic toy robotic arm detailed earlier in the chapter), attached to the revolute arm described in 27. A small stepper motor and gear system provide wrist rotation.
Read QR Code JIS X 0510 In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
QR Code Printer In Visual C#
Using Barcode creator for VS .NET Control to generate, create QR Code JIS X 0510 image in VS .NET applications.
28-19 shows the wrist rotation scheme used to add a gripper to the revolute coordinate arm described in 27. You can also use a worm gear on the motor shaft. Remember that worm gears introduce a great deal of gear reduction, so take this into account when planning your robot. The wrist should not turn too quickly or too slowly. Another approach is to use a rotary solenoid. These special-purpose solenoids have a plate that turns 30 to 50 in one direction when power is applied. The plate is springloaded, so it returns to its normal position when the power is removed. Mount the solenoid on the arm and attach the plate to the wrist of the gripper.
Paint Denso QR Bar Code In Visual Studio .NET
Using Barcode drawer for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.
Paint Denso QR Bar Code In Visual Studio .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create QR-Code image in Visual Studio .NET applications.
28.5 From Here
QR Code JIS X 0510 Maker In VB.NET
Using Barcode drawer for .NET Control to generate, create QR Code image in .NET framework applications.
Barcode Creator In None
Using Barcode generation for Software Control to generate, create barcode image in Software applications.
To learn more about . . . Using DC motors and shaft encoders Using stepper motors to drive robot parts Different robotic arm systems and assemblies Building a robotic revolute coordinate arm Interfacing feedback sensors to computers and microcontrollers Read 20, Working with DC Motors 21, Working with Stepper Motors 26, Reaching Out with Robot Arms 27, Build a Revolute Coordinate Arm 14, Computer Peripherals
ECC200 Generation In None
Using Barcode encoder for Software Control to generate, create ECC200 image in Software applications.
Code 39 Extended Drawer In None
Using Barcode printer for Software Control to generate, create ANSI/AIM Code 39 image in Software applications.
This page intentionally left blank
Printing Code 128 Code Set A In None
Using Barcode encoder for Software Control to generate, create Code 128 image in Software applications.
Generating Barcode In None
Using Barcode encoder for Software Control to generate, create barcode image in Software applications.
PA R T
Paint British Royal Mail 4-State Customer Barcode In None
Using Barcode generation for Software Control to generate, create Royal Mail Barcode image in Software applications.
Creating Data Matrix ECC200 In C#
Using Barcode printer for Visual Studio .NET Control to generate, create Data Matrix ECC200 image in .NET applications.
SENSORS AND NAVIGATION
Data Matrix Printer In None
Using Barcode printer for Microsoft Excel Control to generate, create Data Matrix ECC200 image in Office Excel applications.
UCC - 12 Maker In VB.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create GTIN - 128 image in .NET framework applications.
Copyright 2006, 2001, 1987 by The McGraw-Hill Companies, Inc. Click here for terms of use.
DataMatrix Maker In Java
Using Barcode creator for Java Control to generate, create DataMatrix image in Java applications.
Generating Bar Code In None
Using Barcode drawer for Excel Control to generate, create bar code image in Excel applications.
This page intentionally left blank
DataMatrix Maker In None
Using Barcode creator for Online Control to generate, create Data Matrix ECC200 image in Online applications.
Barcode Decoder In Visual Studio .NET
Using Barcode Control SDK for ASP.NET Control to generate, create, read, scan barcode image in ASP.NET applications.
CHAPTER
THE SENSE OF TOUCH
ike the human hand, robotic grippers often need a sense of touch to determine if and when they have something in their grasp. Knowing when to close the gripper to take hold of an object is only part of the story, however. The amount of pressure exerted on the object is also important. Too little pressure and the object may slip out of grasp; too much pressure and the object may be damaged. The human hand has an immense network of complex nerve endings that serve to sense touch and pressure. Touch sensors in a robot gripper are much cruder with just one or two points, but for most hobby applications these sensors serve their purpose: to provide nominal feedback on the presence of an object and the pressure exerted on the object. This chapter deals with the fundamental design approaches for several touch sensing systems for use on robot grippers (or should the robot lack hands, elsewhere on the body of the robot). Modify these systems as necessary to match the specific gripper design being used and the control electronics you are using to monitor the sense of touch. Note that in this chapter the distinction between touch and collision is made. Touch is a proactive event, where you specifically wish the robot to determine its environment by making physical contact. Conversely, collision is a reactive event, where (in most cases) you wish the robot to stop what it s doing when a collision is detected and back away from the condition. 30, Object Detection, deals with the (potential for) physical contact resulting in a collision.
Copyright 2006, 2001, 1987 by The McGraw-Hill Companies, Inc. Click here for terms of use.
THE SENSE OF TOUCH
Switch
Frame
FIGURE 29-1 A mechanical momentary on push button switch makes a perfect touch sensor.
29.1 Mechanical Switch
The lowly mechanical switch is the most common, and simple, form of tactile (touch) feedback. Most any momentary, spring-loaded switch will do; the switch changes state when an object is touched, completing a circuit (or in some cases, the switch opens, breaking the circuit). The switch may be directly connected to a motor or discrete circuit, or it may be connected to a computer or microcontroller, as shown in Fig. 29-1. You can choose from a wide variety of switch styles when designing contact switches for tactile feedback. Leaf switches (sometimes referred to as Microswitch switches) come with levers of different lengths that enhance the sensitivity of the switch. You can also use miniature contact switches, like those used in keyboards and electronic devices, as touch sensors on your robot. In all cases, mount the switch so it makes contact with whatever object you wish to sense. In the case of a robotic gripper, you can mount the switch in the hand or finger sections. In the case of feelers for a smaller handless robot, the switch can be mounted fore or aft. It makes contact with an object as it rolls along the ground. By changing the arrangement of the switch from vertical (see Fig. 29-2), you can have the feeler determine if it s reached the edge of a table or a stair landing.
Copyright © OnBarcode.com . All rights reserved.