Development of a Miniature Laser Capillary SpectrophotometerProbe for Liquid Dispersions

液体分散体微型激光毛细管分光光度计探针的研制

• 批准号: 8860514
• 负责人: Wayne Amato
• 金额: $ 5万
• 依托单位: Phaedron Technologies Inc
• 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: 1989-01-01 至 1989-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8860514&HistoricalAwards=false
• 关键词: Development; Miniature; Laser; Capillary; SpectrophotometerProbe

This Small Business Innovation Research (SBIR) Phase I project is in the topical area of analytical and surface chemistry and in the subfield of process instrumentation. Research designed to establish the feasibility of an instrument capable of measuring multivariate (size and concentration) drop distribution data in heterogeneous liquid dispersions is the thrust of this activity. An instrument of this type can have significant value both as a research device and as a process monitoring tool. Such a device is needed to obtain fundamental knowledge and to improve the design of liquid-liquid contact equipment in various chemical, petrochemical, pharmaceutical, nuclear and metallurgical processes. Phaedron Technologies, Inc. intends to demonstrate during this Phase I activity that such a miniature probe can be developed for these applications and made available at modest costs. The likelihood of attaining this goal is supported by Phaedron's recent success in the development and utilization of a Laser Capillary Spectrophotometer (LCS) system to obtain bivariate drop distribution data. The planned research will be directed towards the design, fabrication and testing of a miniature LCS probe for direct introduction into process vessels to meet various process requirements. The LCS technique is based on the measurement of a pulse width and height of an electrical signal due to attenuated light as the dispersion is forced through a capillary across the path of two parallel laser beams. The probe will be connected to optical fiber bundles to transmit and receive light signals. In Phase I, a suitable photoelectric circuit for data acquisition and the necessary software for data analysis will be developed to implement the conceptual design, and the device will be fabricated and tested. Economic competitiveness would accrue from controlled production of specifically tailored specialty chemicals due to monitoring capabilities heretofore not possible.

小企业创新研究（SBIR）第一阶段项目 在分析和表面化学的专题领域， 过程仪表的子领域。 研究旨在 建立一种能够测量 多变量（尺寸和浓度）液滴分布数据， 非均相液体分散体是该活动的重点。 这种类型的工具可以具有重要的价值， 研究设备和过程监控工具。 这种装置 需要获得基础知识，并提高 各种化工、化工等行业液液接触设备的设计， 石化、制药、核能和冶金 流程. Phaedron Technologies，Inc.意图证明 在第一阶段的活动中，这种微型探测器可以 为这些应用程序开发，并提供适度的 成本 实现这一目标的可能性得到以下方面的支持： Phaedron最近在开发和利用 激光毛细管分光光度计（LCS）系统，以获得双变量 液滴分布数据。 计划中的研究将针对设计， 微型LCS探针的制作和测试 引入工艺容器以满足各种工艺 要求. LCS技术是基于测量 脉冲宽度和高度的电信号，由于衰减 当分散体被迫通过毛细管穿过 两束平行激光的路径。 探头将连接到 用于传输和接收光信号的光纤束。 在 第一阶段，用于数据采集的适当光电电路， 将开发必要的数据分析软件， 实施概念设计，设备将 制造和测试。 经济竞争力将从 控制生产量身定制的特种化学品 由于迄今为止不可能有监视能力。