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Low-power laser-based carbon monoxide sensor for fire and post-fire detection using a compact Herriott multipass cell

机译:低功率基于激光的一氧化碳传感器,用于使用紧凑型Herriott多通道电池进行火灾和火灾后探测

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摘要

With the anticipated retirement of Space Shuttles in the next few years, the re-supplying of short-lifetime sensors on the International Space Station (ISS) will be logistically more difficult. Carbon Monoxide (CO) is a well-known combustion product and its absence in a fire and post-fire environment is a reliable indicator for mission specialists that the air quality is at a safe to breathe level. We report on the development and performance of a prototype compact CO sensor, based on the PHOTONS platform [1], developed for the ISS based on tunable diode laser absorption spectroscopy (TDLAS). A CO absorption line at ~4285 cm~(-1) is targeted using a distributed-feedback (DFB) laser diode operating at room temperature. A custom designed Herriott multipass cell 16cm long, with an effective path length of 3.7 m is employed. Mechanical, optical and electronics systems are integrated into a compact package of dimensions measuring 12.4"×3.4"×5". Power consumption is less than 1 W, enabling prolonged battery life. A detection limit of 3 ppm is achieved when performing 40 second long temperature scans. A recent initial test at NASA-JSC was successful. Future improvements include the reduction of the sampling volume, scan time and an improved CO minimum detection limit.
机译:预计未来几年内航天飞机将退役,在国际空间站(ISS)上重新提供短寿命传感器在逻辑上将更加困难。一氧化碳(CO)是一种著名的燃烧产物,在火灾和火灾后的环境中不存在,这是任务专家对空气质量处于安全呼吸水平的可靠指示。我们报告了基于PHOTONS平台[1]的紧凑型CO传感器原型的开发和性能,该平台基于可调谐二极管激光吸收光谱(TDLAS)为国际空间站开发。使用在室温下工作的分布式反馈(DFB)激光二极管瞄准〜4285 cm〜(-1)处的CO吸收线。使用定制设计的16毫米长的Herriott多通道电池,有效路径长度为3.7 m。机械,光学和电子系统集成到尺寸为12.4“×3.4”×5“的紧凑型封装中。功耗小于1 W,可延长电池寿命。执行40秒长时,检测极限为3 ppm温度扫描:最近在NASA-JSC上进行的初步测试是成功的,未来的改进包括减少了采样量,缩短了扫描时间并提高了CO最低检测限。

著录项

  • 来源
    《Quantum sensing and nanophotonic devices VII》|2010年|P.76080C.1-76080C.6|共6页
  • 会议地点 San Francisco CA(US)
  • 作者单位

    Dept. of Electrical and Computer Engineering, Rice University, 6100 Main St., Houston, TX, USA 77005;

    rnDept. of Electrical Engineering, Princeton University, B321 EQuad, Princeton, NJ, USA 08540;

    rnDept. of Electrical and Computer Engineering, Rice University, 6100 Main St., Houston, TX, USA 77005;

    rnDept. of Electrical and Computer Engineering, Rice University, 6100 Main St., Houston, TX, USA 77005;

    rnDept. of Electrical and Computer Engineering, Rice University, 6100 Main St., Houston, TX, USA 77005;

    rnDept. of Electrical and Computer Engineering, Rice University, 6100 Main St., Houston, TX, USA 77005;

    rnDept. of Electrical and Computer Engineering, Rice University, 6100 Main St., Houston, TX, USA 77005;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TP212;
  • 关键词

    carbon monoxide detection; distributed feedback laser; laser absorption spectroscopy;

    机译:一氧化碳检测;分布式反馈激光器激光吸收光谱;

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