Flex cable adds muscle to signal integrity
When designers are busy building machine vision systems, cable is often an afterthought. It shouldn't be this way. If your signals can't get from here to there in one piece, your application is running blind. To prevent that, think about cabling early in the design process, especially the metallic shields that stand guard against noise-induced signal error.
Impedance increases as flexing damages cable shields.
Conductor resistance is good up to eight million cycles. Broken shields cause the conductors to fail.
Attenuation increases when the cable is flexed.
The shield on the twisted pairs begins to fail almost immediately. Resistance increases as the shield breaks up, which correlates to the increase in attenuation at 1,000 cycles.
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© 2008 Penton Media Inc.
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