SPECTROMETER MONITOR AND PROTECTION SYSTEM

光谱仪监控和保护系统

• 批准号: 8363988
• 负责人: PETER P BORBAT
• 金额: $ 0.65万
• 依托单位: CORNELL UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8363988
• 关键词: Amplifiers; Computer software; Detection; Elements; Funding; Generations; Grant; Health; Length; Monitor; National Center for Research Resources; Noise; Output; Physiologic pulse; Principal Investigator; Qualifying; Research; Research Infrastructure; Resources; Source; System; Technology; United States National Institutes of Health; base; cost; ferrite; microwave electromagnetic radiation; programs; repaired; research study

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. Our high-pulse TWTA's and mm-wave spectrometers cannot have fully passive receiver protection. A malfunction in pulse sequence generation or in receiver protecting element will be fatal for the expensive low-noise amplifier. We have considered software safeguards, which check input parameters for sanity and replay programmed pulse sequences before the experiment has started. We thus plan to develop spectrometer monitor hardware which will be based on FPGA to provide high duty-cycle safeguards by monitoring TWTA gate pulses. It will also discriminate or repair runt pulses, glitches, pulses in too rapid succession, pulses that are too long, qualify multi-pulse sequences, shut down RF pulses based on output pulse length, duty cycle and average power by means of pulse detection before and after waveguide attenuator. It will monitor status lines from an active receiver protector and from a microwave pulse-forming unit. An active receiver protector health monitoring circuit and BIT for proper ferrite state will also be implemented.

该副本是利用资源的众多研究子项目之一 由NIH/NCRR资助的中心赠款提供。对该子弹的主要支持 而且，副投影的主要研究员可能是其他来源提供的 包括其他NIH来源。 列出的总费用可能 代表subproject使用的中心基础架构的估计量， NCRR赠款不直接向子弹或副本人员提供的直接资金。 我们的高脉冲TWTA和MM波光谱仪不能具有完全被动的接收器保护。 脉冲序列产生或接收器保护元件中的故障对于昂贵的低噪声放大器将是致命的。我们已经考虑了软件保障措施，该保障措施在实验启动之前检查了理智的输入参数和重播编程的脉冲序列。因此，我们计划开发光谱仪监视硬件，该硬件将基于FPGA，以通过监视TWTA栅极脉冲来提供高占空比的保障措施。它还将区分或修复跑步脉冲，故障，脉冲太快，脉冲太长，合格的多脉冲序列，根据输出脉冲长度，占空比的长度和平均功率通过脉冲检测来关闭RF脉冲，通过脉冲检测到波导衰减器之前和之后的脉冲检测。它将从活动接收器保护器和微波脉冲形成单元中监视状态线。还将实施主动接收器保护器健康监测电路和适当的铁氧体状态的位。