SBIR Phase I: Coherence-gated Backscatter Particle Sizing

这项小型企业创新研究（SBIR）第一阶段项目将展示一种使用背散射激光进行粒度测量的创新光学技术的原理证明。现有系统的局限性包括需要测量透射光而不是反射光，无法在密集粒子场中进行精确测量，以及无法表征粒子形状。第一阶段的研究将导致实现一种独特的诊断系统，能够在高浊度的介质中进行快速，无创的测量；使用背散射，不透射，光；固态光纤结构；具有成本效益的增益制导激光二极管光源；从商业现成的组件组装。粒度技术是关键的过程表征和控制在不同领域的制造和研究。粒度仪器的全球市场估计为3亿美元。使用粒度的行业包括农化、水泥、陶瓷、化妆品、个人护理、土壤测试、废水处理、油漆、油墨和其他表面涂层。拟议的系统将通过对已证实的商业技术的新颖扩展，向颗粒分级领域引入可申请专利的新技术。

This Small Business Innovation Research (SBIR) Phase I project will show proof of principle for an innovative optical technique using backscattered laser light to perform particle sizing measurements. Limitations of existing systems include the need to measure transmitted instead of reflected light, the inability to make accurate measurements in dense particles fields, and the inability to characterize particle shape. Phase I research will lead to the realization of a unique diagnostic system capable of fast, non-invasive measurements in media of high turbidity; use of backscattered, not transmitted, light; solid-state fiber optic construction; cost effective gain-guided laser diodes for light sources; and assembly from commercial-off-the-shelf components. Particle sizing techniques are critical for process characterization and control in diverse areas of manufacturing and research. The worldwide market for particle sizing instruments has been estimated at $300 million. Industries using particle sizing include agrochemical, cement, ceramics, cosmetics, personal care, soil testing, wastewater processing, paints, inks and other surface coatings. The proposed system will introduce a patentable new technology to the field of particle sizing by the novel extension of a proven commercial technique.