Long Fiber-Optic Remote Sensor for Detection and Identification of Chemical Species in Geothermal Wells

用于地热井化学物质检测和识别的长光纤遥感器

• 批准号: 9260022
• 负责人: Christian Schoen
• 金额: $ 4.98万
• 依托单位: Detection Limit Technology Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9260022&HistoricalAwards=false
• 关键词: Long; Fiber; Optic; Remote; Sensor

Long-length remote sensor is proposed that will act as both a gas species detection, identification, and quantification system (GSDIQS), and a temperature measuring system (TMS). Particularly for use in downhole geothermal well logging, the GSDIQS will use Raman scattering as the optical method to measure such as CO2 and H2O vapor. Problems of fiber background have been solved through the use of holographic and dielectric filters, and the use of a laser diode source and telecommunication fiber-optics has extended the sensor lengths to 10 km. The TMS uses the same graded-index fiber-optic and diode source, and uses the fluorescence amplitude dependence of Er:Glass with temperature (or other material) as the near-IR temperature sensing mechanism.

提出了长距离遥感器， 气体种类检测、识别和量化 系统（GSDIQS）和温度测量系统（TMS）。 特别是用于井下地热测井， GSDIQS将使用拉曼散射作为光学方法来测量 例如CO2和H2O蒸汽。 纤维背景的问题已经通过 使用全息和介电滤光片，以及使用激光 二极管光源和电信光纤已经扩展了 传感器长度为10公里。 TMS使用相同的分级索引 光纤和二极管源，并使用荧光振幅 Er：玻璃与温度（或其他材料）的依赖性， 近红外温度传感器