Novel Light Sources & Detectors for mid IR Gas Sensors Powered by Energy Harvesting

新颖的光源

• 批准号: 101259
• 金额: $ 59.75万
• 依托单位: GAS SENSING SOLUTIONS LTD.
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2012
• 资助国家: 英国
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=101259
• 关键词: Novel; Light; Sources; Detectors; mid

It is proposed to develop novel low cost mid infra-red light sources and detectors, based on light emitting diodes (LED`s) and photodiodes (PD`s) respectively, primarily for use in non-dispersive infr-red (NDIR) gas sensors. This replaces the conventional incandescent light bulbs and pyroelectric detectors used in current NDIR gas sensors. Energy per gas concentration measurement is reduced by a factor of typically 3000, enabling sensors to be powered from batteries and power harvesting. Primary benefit is economic deployment of wireless sensor networks and sensor portability. The specific objectives are a) To establish the necessary mid IR device efficiencies b) To develop mid IR LED`s and PD`s operating at wavelengths matched to absorption wavebands for commercially relevant gases c) To produce and test NDIR sensors powered from energy harvesting.

提议分别基于发射二极管（LED）和光电二极管（PD）（PD的光）中新型低成本的红外光源和检测器，主要用于非分散性基础红外（NDIR）气体传感器。这取代了当前NDIR气体传感器中使用的常规白炽灯泡和pyroelectric探测器。每次气体浓度测量的能量通常减少了3000倍，从而使传感器能够从电池和功率收集中供电。主要好处是无线传感器网络和传感器可移植性的经济部署。特定目标是a）建立必要的IR设备效率b）开发IR LED和PD中的中等级别的PD和PD以匹配的波长匹配，以符合商业相关气体的吸收波带c）生成和测试从能量收集驱动的NDIR传感器。