A Multi-functional Fiber Optic Sensor Platform Using a Time Domain Sensing Scheme

使用时域传感方案的多功能光纤传感器平台

• 批准号: 0927539
• 负责人: Chuji Wang
• 金额: $ 17万
• 依托单位: Mississippi State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-10-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0927539&HistoricalAwards=false
• 关键词: Multi; functional; Fiber; Optic; Sensor

This project investigates a new concept of a multi-functional fiber optic sensor platform in the field of fiber optic sensors and sensor systems. The primary research goal is to investigate, develop, and achieve a conceptually new multi-functional fiber optic sensor system to demonstrate the new concept, which will be achieved by using the newly developed fiber loop ringdown (FLRD) technique. FLRD measures a single variable, time, to detect any quantity of interest, e.g., pressure, temperature, strain, concentration of a chemical species, etc. This universal time domain sensing scheme offers the potential of multiplexing multiple FLRD sensor units into a single sensor system to simultaneously sense multiple quantities with high sensitivity, high speed of detection, and minimal adverse impacts from intensity fluctuations of the light source. Specific research objectives include: 1) Design, fabricate, and evaluate each individual FLRD sensor unit for the detection of different measurands. 2) Design, develop, and fabricate a multi-functional fiber sensor system. 3) Develop and optimize data processing algorithms. 4) Demonstrate and evaluate performance of the sensor system in terms of functionality, network capability, data transmission and processing efficiency, and capability of maintaining high performance (sensitivity, accuracy, selectivity, and robustness of each individual sensor unit and the speed of the whole sensor system). This project will involve one graduate student and one undergraduate student from Applied Engineering Physics.

本项目研究了光纤传感器和传感器系统领域中的多功能光纤传感器平台的新概念。主要的研究目标是调查，开发，并实现一个概念性的新的多功能光纤传感器系统，以证明新的概念，这将是通过使用新开发的光纤环振铃（FLRD）技术实现。FLRD测量单个变量，时间，以检测任何感兴趣的量，例如，压力、温度、应变、化学物质的浓度等。这种通用时域感测方案提供了将多个FLRD传感器单元复用到单个传感器系统中的潜力，以高灵敏度、高检测速度和最小化来自光源强度波动的不利影响来同时感测多个量。具体的研究目标包括：1）设计，制造和评估每个单独的FLRD传感器单元，用于检测不同的被测量。2)设计、开发和制造多功能光纤传感器系统。3)开发和优化数据处理算法。4)从功能、网络能力、数据传输和处理效率以及保持高性能的能力（每个传感器单元的灵敏度、准确性、选择性和鲁棒性以及整个传感器系统的速度）方面展示和评估传感器系统的性能。这个项目将涉及一名研究生和一名本科生从应用工程物理。