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One of the largest bandwidth bottlenecks on the Internet occurs in the modulators and switches that translate the electrons used by computers into the photons that speed data through long-distance fiber-optic "backbone" lines. University of Washington, Seattle chemist Larry Dalton has found a way to accelerate this translation process with a new polymer. Modulators made from the polymer draw very little electrical power, are easy to integrate into electronic devices, and could improve communications speed tenfold. A new subsidiary of Microvision, called Lumera, owns an exclusive worldwide license on the polymer technology from the University of Washington; the Bothell, WA, outfit hopes to market polymer-based telecommunications devices in one to two years.
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Manufacturing in the United States is in trouble. That's bad news not just for the country's economy but for the future of innovation.
This document is part of the “How-To Guide for Most Common Measurements” centralized resource portal. This tutorial provides a detailed guide for measurement and device considerations to take temperature measurements using thermocouples. Get an introduction to thermocouples, which are inexpensive sensing devices widely used with PC-based data acquisition systems. Also review some specific thermocouple examples and learn how thermocouples work and ways to integrate them into a data acquisition measurement system.
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