Parents fretting about their teenage drivers have a technology weapon to look forward to: a dashboard-mounted fatigue monitor that can rouse someone who seems in danger of driving off the highway. About two-thirds of drowsy-driving crashes in the United States involve drivers between 16 and 29.
Last fall, Attention Technologies, a startup in Pittsburgh, PA, introduced a webcam-sized drowsiness monitor for truck drivers, based on research at Carnegie Mellon University. It shines invisible infrared light onto a driver's retina and measures the reflection. If the reflection is blocked too often--indicating that the driver's eyes are having trouble staying open--the device flashes and beeps.
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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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