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Mehdi Achour Friedhelm Betz Antony Dovgal Nuno Lopes Hannes Magnusson Georg Richter Damien Seguy Jakub Vrana 其他贡献者 编译：陈浩（Haohappy） 编译时间： 2009-02-15 下次编译： 2009-03-17 chm下载 (chm版本与在线版本内容完全一致，支持全文搜索) Edited By: Philip Olson

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This application report discusses the design of non-invasive optical plethysmography also called as pulsoximeter using the MSP430FG437 Microcontroller (MCU). The pulsoximeter consists of a peripheral probe combined with the MCU displaying the oxygen saturation and pulse rate on a LCD glass. The same sensor is used for both heart-rate detection and pulsoximetering in this application. The probe is placed on a peripheral point of the body such as a finger tip, ear lobe or the nose. The probe includes two light emitting diodes (LEDs), one in the visible red spectrum (660nm) and the other in the infrared spectrum (940nm). The percentage of oxygen in the body is worked by measuring the intensity from each frequency of light after it transmits through the body and then calculating the ratio between these two intensities.

VPN及其配置示例-VPN configuration examples and

经典的GIS二次开发系列书籍的一本，书中介绍了使用Csharp和Mo开发GIS应用程序的方法，有大量示例-classic series of books secondary development of a book on the use of Csharp and Mo development of GIS applications, a large number of examples