公开(公告)号：US07054008B2

公开(公告)日：2006-05-30

申请号：US10367806

申请日：2003-02-19

Applicant: Chuji Wang ,  Christopher Winstead ,  Yixiang Duan

Inventor： Chuji Wang ,  Christopher Winstead ,  Yixiang Duan

IPC: G01N21/01 ,  G01N21/61

CPC classification number: G01J3/42 ,  G01N21/39 ,  G01N21/73

Abstract: Provided is a novel system for conducting elemental measurements using cavity ring-down spectroscopy (CRDS). The present invention provides sensitivity thousands of times improved over conventional devices and does so with the advantages of low power, low plasma flow rate, and the ability being sustained with various gases.

Abstract translation: 提供了一种用于使用空腔衰减光谱（CRDS）进行元素测量的新颖系统。 本发明提供了比常规装置改进数千次的灵敏度，并且具有低功率，低等离子体流速以及用各种气体维持的能力的优点。

公开(公告)号：US07058243B2

公开(公告)日：2006-06-06

申请号：US10046731

申请日：2002-01-17

Applicant: Shiquan Tao ,  Rajeev Jindal ,  Christopher Winstead ,  Jagdish P. Singh

Inventor： Shiquan Tao ,  Rajeev Jindal ,  Christopher Winstead ,  Jagdish P. Singh

IPC: G02B6/00 ,  C03B37/16 ,  C03B8/00

CPC classification number: C03B37/016 ,  C03B2201/40 ,  G01N21/7703 ,  G01N2021/7713 ,  G02B6/102

Abstract: A simple, economic wet chemical procedure is described for making sol-gel fibers. The sol-gel fibers made from this process are transparent to ultraviolet, visible and near infrared light. Light can be guided in these fibers by using an organic polymer as a fiber cladding. Alternatively, air can be used as a low refractive index medium. The sol-gel fibers have a micro pore structure which allows molecules to diffuse into the fiber core from the surrounding environment. Chemical and biochemical reagents can be doped into the fiber core. The sol-gel fiber can be used as a transducer for constructing an optical fiber sensor. The optical fiber sensor having an active sol-gel fiber core is more sensitive than conventional evanescent wave absorption based optical fiber sensors.

公开(公告)号：US5686661A

公开(公告)日：1997-11-11

申请号：US659197

申请日：1996-06-04

Applicant: Jagdish P. Singh ,  Krishnan Balasubramaniam ,  R. Daniel Costley ,  Vimal V. Shah ,  Christopher Winstead

Inventor： Jagdish P. Singh ,  Krishnan Balasubramaniam ,  R. Daniel Costley ,  Vimal V. Shah ,  Christopher Winstead

IPC: G01N11/00 ,  G01N29/024 ,  G01N29/032 ,  A61B10/00 ,  G01N29/00

CPC classification number: G01N11/00 ,  G01N29/024 ,  G01N29/032 ,  G01N2291/012 ,  G01N2291/015 ,  G01N2291/0252 ,  G01N2291/02818 ,  G01N2291/0421 ,  G01N2291/0422

Abstract: This invention is directed to a method of remotely measuring the viscosity of molten materials such as melt glass, melt alloys, etc. during processing of the material.

Abstract translation: 本发明涉及一种在材料加工过程中远程测量熔融材料如熔融玻璃，熔融合金等的粘度的方法。