基于碳纳米管气体传感器的空间原子氧实时探测技术探讨

空间原子氧环境是低地球轨道空间环境的重要组成之一,未来的原子氧探测技术要求探测载荷不仅在重量和功耗方面比现有技术大幅降低,而且在探测性能上要有极大的提升,特别是能实现原子氧通量的实时探测。文章在分析目前主要原子氧探测类型及其特点的基础上,提出一种基于碳纳米管气体传感器的原子氧探测技术。其探测仪器具有体积小、功耗低、灵敏度高、可实时探测、能长期连续工作、可重复使用等特点,是纳米传感器技术发展的重要方向。该技术一旦成功应用,有望快速提高我国在原子氧探测方面的技术水平。

Carbon nanotube gas sensors for real-time detection of space atomic oxygen

The space atomic oxygen is an important issue in the space environment.The future AO detection technique requires a light weight and a reduced power consumption of the related AO sensors,to allow for the in-situ measurement of the space AO fluence.Based on the analysis of major AO detection methods and their characteristics,a technique using the carbon nanotube gas sensor is proposed for the low-content atmosphere detection.The sensor features the small size,the low power consumption,the high sensitivity and the quick response,which can work continuously and repeatedly,represents an important direction for nano sensors,and could be used for the AO fluence measurement to improve the technical level of China’s AO detection.