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    Detector assembly having reduced stray light ghosting sensitivity
    311.
    发明授权
    Detector assembly having reduced stray light ghosting sensitivity 失效
    检测器组件具有减少的杂散光重影灵敏度

    公开(公告)号：US06677588B1

    公开(公告)日：2004-01-13

    申请号：US07292023

    申请日：1988-12-13

    Applicant: Russell D. Granneman

    Inventor： Russell D. Granneman

    IPC: G01J500

    CPC classification number: G01J5/061 ,  G01J3/0262 ,  G01J2005/0077 ,  G02B5/003 ,  G02B23/12 ,  G02B27/0018

    Abstract: An improved detector assembly 10 having decreased sensitivity both to Narcissism and to stray light ghosting is disclosed herein. The improved detector assembly 10 of the present invention includes a housing 70 having an input aperture 142 in communication with a chamber within said housing. A detector 130 for sensing electromagnetic energy passing through the input aperture 142 within a first field of view is mounted within the chamber. Also mounted within the chamber is a detector mirror 100 for reflecting energy passing through the input aperture 142 within a second field of view outside of the first field of view. The improved assembly 10 of the present invention further includes a second mirror 110 mounted within the chamber for reflecting energy reflected by the first mirror 100 through the input aperture 142.

    Abstract translation: 本文公开了一种改进的检测器组件10，其具有降低的自恋和偏光重影的灵敏度。 本发明的改进的检测器组件10包括壳体70，壳体70具有与所述壳体内的腔室连通的输入孔142。 用于感测通过第一视场内的输入孔142的电磁能的检测器130安装在腔室内。 还安装在腔室内的是用于在第一视场外的第二视野内反射通过输入孔142的能量的检测镜100。 本发明的改进的组件10还包括安装在室内的第二反射镜110，用于反射由第一反射镜100反射的能量通过输入孔142。

    Method and apparatus for a high resolution downhole spectrometer
    312.
    发明申请
    Method and apparatus for a high resolution downhole spectrometer 审中-公开
    高分辨率井下光谱仪的方法和装置

    公开(公告)号：US20030223068A1

    公开(公告)日：2003-12-04

    申请号：US10162023

    申请日：2002-06-04

    Applicant: Baker Hughes Incorporated

    Inventor： Rocco DiFoggio ,  Arnold Walkow ,  Paul Bergren

    IPC: G01J003/51

    CPC classification number: G01J3/26 ,  E21B49/08 ,  E21B2049/085 ,  G01J3/0202 ,  G01J3/0262 ,  G01J3/06 ,  G01J3/433 ,  G01J3/4406 ,  G01N21/0317 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/64 ,  G01N2021/6421 ,  G01N2021/6439 ,  G01N2021/6482 ,  G01N2021/855

    Abstract: The present invention provides a simple, robust, and versatile high-resolution spectrometer that is suitable for downhole use. The present invention provides a method and apparatus incorporating a spinning, oscillating or stepping optical interference filter to change the angle at which light passes through the filters after passing through a sample under analysis downhole. As each filter is tilted, the color or wavelength of light passed by the filter changes. Black plates are placed between the filters to isolate each filter's photodiode. The spectrometer of the present invention is suitable for use with a wire line formation tester, such as the Baker Atlas Reservation Characterization Instrument to provide supplemental analysis and monitoring of sample clean up. The present invention is also suitable for deployment in a monitoring while drilling environment. The present invention provides a high resolution spectometer which enables quantification of a crude oil's percentage of aromatics, olefins, and saturates to estimate a sample's gas oil ratio (GOR). Gases such as CO2 are also detectable. The percentage of oil-based mud filtrate contamination in a crude oil sample can be estimated with the present invention by using a suitable training set and chemometrics, a neural network, or other type of correlation method.

    Abstract translation: 本发明提供了一种适用于井下使用的简单，坚固且通用的高分辨率光谱仪。 本发明提供了一种包括旋转，振荡或步进光学干涉滤光器的方法和装置，以改变在通过井下分析的样品之后光通过滤光器的角度。 当每个滤光片倾斜时，由滤光片传出的光线的颜色或波长发生变化。 过滤器之间放置黑色板，以隔离每个过滤器的光电二极管。 本发明的光谱仪适合与线形成测试仪一起使用，例如Baker Atlas Reservation Characterization Instrument，以提供对样品清理的补充分析和监测。 本发明也适用于在钻井环境中进行监视。 本发明提供了一种高分辨率光谱仪，其能够定量原油的芳烃，烯烃和饱和物的百分比，以估计样品的瓦斯油比（GOR）。 气体如二氧化碳也是可以检测的。 通过使用合适的训练集和化学计量学，神经网络或其他类型的相关方法，可以用本发明估算原油样品中油基泥浆滤液污染物的百分比。

    Concentric spectrometer with mitigation of internal specular reflections
    313.
    发明授权
    Concentric spectrometer with mitigation of internal specular reflections 失效
    同心光谱仪，减轻内部镜面反射

    公开(公告)号：US06538736B1

    公开(公告)日：2003-03-25

    申请号：US09705990

    申请日：2000-11-03

    Applicant: Perry A. Palumbo

    Inventor： Perry A. Palumbo

    IPC: G01J328

    CPC classification number: G01J3/04 ,  G01J3/02 ,  G01J3/0262 ,  G01J3/18

    Abstract: Concentric spectrometers are plagued with internal reflections due to inherent nature of more than one optical surface possessing a common center of curvature. Reflections from optical surfaces arise when there is a difference or change in the refractive index of the media in which an optical beam or ray of a given wavelength is propagating. Internal reflections in concentric optical systems can produce a myriad of undesirable optical phenomenon at the image plane such as multiple images of an object, interference fringes, and stray light. As a result a loss in contrast or detection limit arise from such phenomenon in which light or detectable radiation that impinges on the image plane does not add to the formation of the intended image, (stray light). The present invention produces high quality images without the optical phenomenon(s) that arise from internal reflections by removing the reflected radiation from propagating through the optical system.

    Abstract translation: 由于具有共同的曲率中心的多于一个的光学表面的固有特性，同心光谱仪受到内部反射的困扰。 当光束或给定波长的光线正在传播的介质的折射率存在差异或变化时，会产生光学表面的反射。 同心光学系统中的内部反射可能在像平面上产生无数不希望的光学现象，例如物体的多个图像，干涉条纹和杂散光。 结果，造成对比度或检测限制的损失是由于这种现象，其中照射在图像平面上的光或可检测的辐射不会增加预期图像的形成（杂散光）。 本发明通过去除通过光学系统传播的反射辐射而产生高质量图像而没有由内部反射产生的光学现象。

    Device for the selection and detection of at least two spectral regions in a beam of light
    314.
    发明授权
    Device for the selection and detection of at least two spectral regions in a beam of light 失效
    用于在光束中选择和检测至少两个光谱区域的装置

    公开(公告)号：US5886784A

    公开(公告)日：1999-03-23

    申请号：US910173

    申请日：1997-08-13

    Applicant: Johann Engelhardt

    Inventor： Johann Engelhardt

    IPC: G01J3/14 ,  G01J3/36 ,  G01J3/44 ,  G02B21/00 ,  G01J3/28

    CPC classification number: G01J3/02 ,  G01J3/0262 ,  G01J3/14 ,  G01J3/36 ,  G01J3/4406 ,  G02B21/0064 ,  G02B21/0076

    Abstract: Described is a device (16) for the selection and detection of at least two spectral regions in a beam of light (14), the device including a selection unit (25) and a detection unit (26). To ensure reliable simultaneous selection and detection of different spectral regions plus high yield and simplest possible construction, the device is designed such that the selection unit (25) comprises means (27) for splitting the light beam (14) up into its spectral components and means (28) for not only masking off a first spectral region (29) but also reflecting at least part (30) of the spectral region which is not masked off, and the detection unit (26) comprises a first detector (31) located in the path of the light in the masked-off first spectral region (29) and a second detector (32) located in the path of the light of the reflected spectral region (30).

    Abstract translation: 描述了用于选择和检测光束（14）中的至少两个光谱区域的装置（16），该装置包括选择单元（25）和检测单元（26）。 为了确保不同光谱区域的可靠同时选择和检测以及高产量和最简单的可能结构，该设备被设计成使得选择单元（25）包括用于将光束（14）分成其光谱分量的装置（27） 用于不仅掩蔽第一光谱区域（29）而且还反射未屏蔽的光谱区域的至少一部分（30）的装置（28），并且检测单元（26）包括位于 在遮光掉的第一光谱区域（29）中的光的路径和位于反射光谱区域（30）的光的路径中的第二检测器（32）。

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