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As price per megabyte comes down, standardization arguably matters less. Right now, you can get 256-megabyte SD or CF cards for well under $100. But each image produced by the newest 6-megapixel cameras will swallow 18 MB, so the ideal card size requires more megabytes, negating the drop in per-megabyte price. Also, when I'm dropping off a card at the store to have an image printed, I'd rather leave behind a small, cheap old card than a 256 MB or 1-GB unit. If I standardize on one card type, I can more easily use my old cards for this purpose, even after I upgrade to more capacious cards for new cameras.
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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