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1. 发明授权

US4768879A Method for measuring the size of objects in a fluid medium 失效
标题翻译：测量流体介质中物体大小的方法
公开(公告)号：US4768879A
公开(公告)日：1988-09-06
申请号：US875168
申请日：1986-06-17
申请人： Richard D. McLachlan , Ray W. Chrisman
发明人： Richard D. McLachlan , Ray W. Chrisman
IPC分类号： G01N15/02 , G01N21/65 , G01N21/85 , G01N21/64
CPC分类号： G01N15/0205 , G01N2021/4709 , G01N2021/6417 , G01N2021/651 , G01N2021/656 , G01N21/8507
摘要： A method for determining the size of moving objects present in a transparent or translucent fluid medium comprises illuminating a zone of the suspension with monochromatic light, collecting scattered light having a wavelength characteristic of the objects or of the medium, and measuring the intensity and variations in intensity of the collected light. The data thus obtained may be compared with data obtained from corresponding measurements of corresponding mediums containing corresponding objects of known size.
摘要翻译：用于确定存在于透明或半透明流体介质中的移动物体的尺寸的方法包括用单色光照射悬浮液的区域，收集具有物体或介质的波长特性的散射光，并测量其中的强度和变化收集光的强度。这样获得的数据可以与从包含已知尺寸的相应对象的相应介质的对应测量获得的数据进行比较。

2. 发明授权

US4573761A Fiber-optic probe for sensitive Raman analysis 失效
标题翻译：用于敏感拉曼分析的光纤探头
公开(公告)号：US4573761A
公开(公告)日：1986-03-04
申请号：US531877
申请日：1983-09-14
申请人： Richard D. McLachlan , Gary L. Jewett , John C. Evans
发明人： Richard D. McLachlan , Gary L. Jewett , John C. Evans
IPC分类号： G01N21/65 , G01N21/85
CPC分类号： G01N21/65 , G01N21/8507 , G01N2021/6484 , G01N2021/656
摘要： A fiber-optic probe, useful for light scattering and luminescence measurements, which comprises at least one optical fiber for transmitting light into a sample and at least two optical fibers for collecting light from the sample. The probe may further comprise a shield surrounding the fibers and having an optical window at one end to protect the fibers from hostile environments. When used in conjunction with a laser as a light source, the probe is particularly suited for Raman spectroscopy.
摘要翻译：一种用于光散射和发光测量的光纤探针，其包括用于将光发射到样品中的至少一个光纤和用于收集来自样品的光的至少两根光纤。探针还可以包括围绕光纤的屏蔽，并且在一端具有光学窗口以保护光纤免受恶劣环境的影响。当与激光器一起用作光源时，探针特别适用于拉曼光谱。

3. 发明授权

US5303036A Variable path length light transmission probe 失效
标题翻译：可变路径长度透光探头
公开(公告)号：US5303036A
公开(公告)日：1994-04-12
申请号：US765756
申请日：1991-09-26
申请人： Richard D. McLachlan , Mary A. Leugers , Robert A. Bredeweg
发明人： Richard D. McLachlan , Mary A. Leugers , Robert A. Bredeweg
IPC分类号： G01N21/03 , G01N21/27 , G01N21/59 , G01N21/85 , G01N21/00 , G01N21/15
CPC分类号： G01N21/8507
摘要： A probe for use in situ analysis of light absorbing fluids wherein light emitted from a source is collimated by a lens and transmitted through a fluid onto and substantially perpendicular to a reflector. Light is reflected by the reflector back through the fluid and focused by the lens onto a reflected light collector for transmission to analyzing apparatus. The length of the path traversed by the emitted and reflected light is adjustable.
摘要翻译：用于光吸收流体的原位分析的探针，其中从源发射的光由透镜准直并通过流体传输到基本上垂直于反射器。光被反射器反射回流体并被透镜聚焦到反射光收集器上，以便传输到分析装置。由发射和反射光穿过的路径的长度是可调节的。

4. 发明授权

US4643573A Method for measuring the relative concentration of larger and smaller particles in suspension 失效
标题翻译：用于测量悬浮液中较大和较小颗粒的相对浓度的方法
公开(公告)号：US4643573A
公开(公告)日：1987-02-17
申请号：US703796
申请日：1985-02-21
申请人： Richard D. McLachlan , Ray W. Chrisman
发明人： Richard D. McLachlan , Ray W. Chrisman
IPC分类号： G01N21/53 , G01N21/85 , G01N21/49
CPC分类号： G01N21/53 , G01N21/8507
摘要： The concentration of larger particles in a suspension of relatively small and relatively large light scattering particles is determined by illuminating a zone of the suspension with light of such wavelength as to be scattered more efficiently by the larger particles than by the smaller particles. The scattered light is collected and its intensity measured. The value of the collected light intensity then is compared with the corresponding value of the same wavelength light scattered by corresponding suspensions containing known concentrations of particles.
摘要翻译：相对较小且相对较大的光散射颗粒的悬浮液中的较大颗粒的浓度通过用比较小颗粒更大的颗粒更有效地散射的波长的光照射悬浮液的区域来确定。收集散射光并测量其强度。然后将收集的光强度的值与由包含已知浓度的颗粒的相应悬浮液散射的相同波长的光的相应值进行比较。

5. 依法登记的发明

USH2002H1 Apparatus for conducting Raman spectroscopy using fiber optics 失效
公开(公告)号：USH2002H1
公开(公告)日：2001-11-06
申请号：US08800366
申请日：1997-02-14
申请人： Richard D. McLachlan , Mary Anne Leugers
发明人： Richard D. McLachlan , Mary Anne Leugers
IPC分类号： G01J344
摘要： A fiber optic probe apparatus useful for conducting Raman spectroscopy remotely over optical fibers with minimal interference from Raman scattering within said fibers which includes three elements. The first element is at least one transmitting optical fiber having a first end and a second end. The second element is at least one collecting optical fiber for collecting light from a sample positioned near the first end of the transmitting optical fiber, the collecting optical fiber having a first end and a second end, the first end of the collecting optical fiber being in closely spaced relationship with the first end of the transmitting optical fiber wherein the longitudinal axis of the first end of the collecting optical fiber converges with the longitudinal axis of the first end of the transmitting optical fiber at an angle of less than forty five degrees. The third element is at the heart of the invention. The third element is a rejection optical filter in optical communication with the second end of the collecting optical fiber.

6. 发明授权

US4829186A Methods and apparatus for measuring the light absorbance of a fluid medium 失效
标题翻译：用于测量流体介质的吸光度的方法和装置
公开(公告)号：US4829186A
公开(公告)日：1989-05-09
申请号：US214902
申请日：1988-06-28
申请人： Richard D. McLachlan , Ray W. Chrisman
发明人： Richard D. McLachlan , Ray W. Chrisman
IPC分类号： G01N21/27 , G01N21/33 , G01N21/55 , G01N21/85
CPC分类号： G01N21/552 , G01N21/33 , G01N21/8507 , G01N2201/08
摘要： The presence and concentration of a light absorbing constituent in a fluid medium is determined in-situ by immersing in such medium a probe having a prism at one end whose refractive index is greater than that of the medium and causing light including a wavelength absorbable by such constituent to traverse an optical path through the prism and undergo successive attenuated total reflections. At each reflection some of the light will be absorbed by the constituent. The intensity of light emerging from the prism is measured at one or more wavelengths, including one absorbable by such constituent. The concentration of the constituent is determined by comparison of the measured intensity with values obtained from like measurements performed on like mediums containing known concentrations of the constituent.
摘要翻译：流体介质中的光吸收成分的存在和浓度是通过将这种介质中的棱镜在折射率大于介质的一端浸入这种介质中来确定的，并引起包括可吸收的波长的光成分穿过棱镜穿过光路并经历连续衰减的全反射。在每次反射时，一些光将被成分吸收。在一个或多个波长处测量从棱镜出射的光的强度，包括一个可被这种成分吸收的波长。通过将测量的强度与在含有已知浓度的组分的类似介质上进行的相似测量值获得的值进行比较来确定组分的浓度。

7. 发明授权

US4707134A Fiber optic probe 失效
标题翻译：光纤探头
公开(公告)号：US4707134A
公开(公告)日：1987-11-17
申请号：US678115
申请日：1984-12-04
申请人： Richard D. McLachlan , Leslie D. Rothman
发明人： Richard D. McLachlan , Leslie D. Rothman
IPC分类号： G01N21/49 , G01N15/02 , G01N15/06 , G01N15/14 , G01N21/47
CPC分类号： G01N15/0211 , G01N2021/4719
摘要： A fiber optic probe having a sealed, cylindrical housing closed at one end by a transparent window and at the opposite end by a wall through which a plurality of optical fibers extend toward the window. Adjacent the window the fibers are radially and circumferentially spaced about the axis of the housing and converge along lines which intersect one another at a common point on the housing axis that is adjacent or beyond the outer surface of the window. At least one of the fibers transmits light from a source through the window to illuminate a zone of a fluid sample, whereby particles present in such zone scatter light therefrom to the remaining fibers for transmission through the probe housing to light detecting and measuring apparatus.
摘要翻译：一种光纤探针，其具有密封的圆柱形壳体，其一端由透明窗口封闭，并且在相对端由多个光纤朝向窗口延伸穿过壁。在窗口附近，纤维围绕壳体的轴线径向和周向间隔开，并且沿着与壳体轴线上相邻或超过窗口外表面的公共点相交的线会聚。光纤中的至少一个通过窗口透过来自光源的光以照射流体样品的区域，由此存在于该区域中的颗粒将光从其中散射到剩余的纤维，以通过探测器壳体传输到光检测和测量装置。

8. 发明授权

US4672218A Method for determining the onset of crystallization 失效
标题翻译：确定结晶开始的方法
公开(公告)号：US4672218A
公开(公告)日：1987-06-09
申请号：US678114
申请日：1984-12-04
申请人： Ray W. Chrisman , Richard D. McLachlan , Richard S. Harner
发明人： Ray W. Chrisman , Richard D. McLachlan , Richard S. Harner
IPC分类号： G01N21/49 , B01D9/02 , G01N21/51 , G01N21/85 , G01N25/14
CPC分类号： G01N25/147 , G01N21/51 , G01N21/8507
摘要： A method for determining the onset of nucleation wherein a zone of a translucent fluid in which crystals may be formed is illuminated by a beam of light. When crystallization commences the crystals in the illuminated zone reflect and scatter light. Some of the scattered light is collected and transmitted to a light sensitive detector operable to generate a signal indicative of nucleation. Upon detection of nucleation either manual or automatic procedures may be instituted to modify the crystallization process in an appropriate manner.
摘要翻译：用于确定成核开始的方法，其中可以形成晶体的半透明流体的区域被光束照射。当结晶开始时，照射区域中的晶体反射和散射光。一些散射光被收集并传输到可操作以产生指示成核的信号的光敏检测器。当检测到成核时，可以进行手动或自动程序以适当的方式改变结晶过程。

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