Engineering Research Equipment Grant: RF Signal Generation and Analysis Instrumentation (for Coherent Sensor Research) REU Supplement

工程研究设备补助金：射频信号生成和分析仪器（用于相干传感器研究）REU 补充

• 批准号: 8906120
• 负责人: Christopher Davis
• 金额: $ 5.49万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-12-01 至 1991-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8906120&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; RF

This proposal requests funds to purchase state-of-the-art instrumentation to permit advanced research to be carried out on high- frequency, coherent free-space and fiber sensors for a range of ultra- sensitive applications. In particular, instrumentation is being requested to provide accurate DC to microwave frequency generation and analysis capability. This instrumentation will replace antiquated instrumentation currently in use in experiments using homodyne and heterodyne sensors in the following applications: 1) photothermal spectroscopy and related photothermal studies; 2) studies of lateral turbulence correlations in the atmosphere; 3) studies of local, short-path turbulence; 4) detection of trace organic molecules in the atmosphere; 5) studies of the ultrasonic properties of liquids up to 2GHz; 6) studies of the non-linear magnetooptical properties of materials; 7) development of new heterodyne fiber sensors with novel polarization and demodulation techniques using balance mixers. These sensors are being developed for local probing of electrooptic and magnetooptic activity. The specific equipment being requested comprises: HP: Model 8662A Signal Gen.: Model 8644 Signal Gen.: Model 8562 Spectrum Analyzer: Model 3162 Dynamic Signal Analyzer.

该提案要求资金购买最先进的仪器，以便对高频、相干自由空间和光纤传感器进行先进的研究，用于一系列超灵敏的应用。特别是，仪器被要求提供精确的直流到微波频率产生和分析能力。该仪器将取代目前在实验中使用的陈旧仪器，在以下应用中使用外差和差传感器：1)光热光谱和相关光热研究；2)大气横向湍流相关研究；3)局部、短程湍流的研究；4)大气中微量有机分子的检测；5) 2GHz以下液体的超声特性研究；6)材料的非线性磁光特性研究；7)采用平衡混频器的新型偏振解调技术开发新型外差光纤传感器。这些传感器正在开发用于局部探测电光和磁光活动。所要求的具体设备包括：HP: 8662A型信号发生器：8644型信号发生器：8562型频谱分析仪：3162型动态信号分析仪。