Application
Smart Phone/Tablet AOI Machine
Automated optical inspection (AOI) systems are implemented in motion controller and vision platforms. It is often employed in large scale inspection of components such as panels, PCBs, and others. In automated inspection of smart phones or tablets, however, external appearance is a major priority, calling for a vision system with maximum magnification capabilities. Even so, increased magnification lowers FOV (field of view), requiring thevision system to capture multiple images continuously over the entire exterior of the device. In operation, the motion controller performs not only contouring motions but also positioncomparisons and triggering along the trajectory, referred to as 2D position comparison and triggering. Unlike 1D position comparison and triggering, X and Y axes are both continually compared, demanding increased precision of trajectory.
ADLINK Solution: AMP-204C/208C: DSP-Based 4/8-Axis Advanced Pulse-Train Motion Controllers
One challenge in this application is to maintain precision through contouring motions while simultaneously comparing a requisite position. ADLINK's DSP based motion controller, the AMP-204C/208C provides velocity planning and automatic point-feeding to perform precise high speed contouring motion. The AMP-204C/208C also supports high speed 2D position comparison and triggering up to 1MHz. Further, while in some systems, relocation to a specific point for comparison may not be supported, the AMP-204C/208C allows pre-setting of tolerance to perform the desired comparison even if the system doesn't relocate to the specific desired point.
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