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摘要

WHEN MIKE BUSCH AND I introduced digital pulse oximeters to general aviation in 1995, they were prescription-only devices and were pricey. Now oximeters are over the counter, less expensive, and ubiquitous, and they have made general aviation pilots safer at all altitudes. How do pulse oximeters work and how are they useful in the general aviation cockpit? Pulse oximeters emit two types of red light-one that is continuous and one that pulsates very quickly- that is not detectable by the naked eye. The solid light picks up the background color of the circulating blood in the fingertip or the earlobe. The pulsating light analyzes the pulsatile nature of circulation. An extremely complicated computer algorithm calculates the "redness" of the blood, which determines the oxygen content in a relative sense.

著录项

  • 来源
    《AOPA pilot》 |2023年第10期|30-30|共1页
  • 作者

    BRENT BLUE;

  • 作者单位

    Driggs, Idaho, airport (DIJ);

  • 收录信息
  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类 航空;
  • 关键词

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