公开(公告)号：US06469303B1

公开(公告)日：2002-10-22

申请号：US09574578

申请日：2000-05-17

Applicant: Hong T. Sun ,  Peter C. Hsi

Inventor： Hong T. Sun ,  Peter C. Hsi

IPC: G01J502

CPC classification number: G01N21/3504 ,  G01N21/61 ,  G01N2021/3166

Abstract: An NDIR sensor includes a cylindrical metallic tube, a printed circuit board platform that fits into one end of the tube, a diffusion filter that fits into the opposite end of the tube, and an optical system. The optical system includes an infrared source on the platform, a mirror on the inner wall of the tube so as to reflect and focus the infrared light from the infrared source, and a detector assembly that receives the infrared light after reflection. The gas sensor may further include a partition between the infrared source and the detector assembly, a removable filter on the diffusion filter, connecting pins attached to the platform, and a sealing layer formed under the platform. The detector assembly includes a signal detector and a reference detector. A first and second bandpass filters are respectively formed on the signal and reference detectors.

Abstract translation: NDIR传感器包括圆柱形金属管，安装在管的一端的印刷电路板平台，配合到管的相对端的扩散过滤器和光学系统。 光学系统包括平台上的红外源，管的内壁上的反射镜，以便反射和聚焦来自红外源的红外光;以及检测器组件，其在反射之后接收红外光。 气体传感器还可以包括红外源和检测器组件之间的分隔件，扩散过滤器上的可移除过滤器，连接到平台的连接销和形成在平台下的密封层。 检测器组件包括信号检测器和参考检测器。 第一和第二带通滤波器分别形成在信号和参考检测器上。

公开(公告)号：US06452181B1

公开(公告)日：2002-09-17

申请号：US09757351

申请日：2001-01-08

Applicant: Carter M. Glass ,  Arthur Casimir Golubiewski ,  Lori K. Harrison ,  Scott David Alexander ,  Christopher Taylor Herring

Inventor： Carter M. Glass ,  Arthur Casimir Golubiewski ,  Lori K. Harrison ,  Scott David Alexander ,  Christopher Taylor Herring

IPC: G01J502

CPC classification number: G01C11/00

Abstract: A method and system are disclosed for imaging a planetary surface region of interest (ROI). In a primary application, a plurality of space vehicles having antennas mounted thereupon are utilized to collect thermal radiation emitted from the ROI and generate corresponding thermal emission signals. Such thermal emission signals may be combined to yield one or more simple interferometric fringes. The simple fringes may be employed to yield a pixel image of the ROI. In one aspect, one or more simple interferometric fringes may be utilized to generate one or more compound interferometric fringes for use in formation of the pixel image. One or more compound fringes may be utilized to generate additional levels of compound fringes for use in formation of the pixel image. In another aspect, the space vehicles may be positioned in a “near-field” imaging arrangement relative to the ROI and a matched filtering approach may be utilized for extracting amplitude data from the interferometric fringe(s) on a basis for use in pixel image formation.

公开(公告)号：US06441376B1

公开(公告)日：2002-08-27

申请号：US09731113

申请日：2000-12-06

Applicant: Carter M. Glass ,  Arthur Casimir Golubiewski ,  Lori K. Harrison ,  Scott David Alexander ,  Christopher Taylor Herring

Inventor： Carter M. Glass ,  Arthur Casimir Golubiewski ,  Lori K. Harrison ,  Scott David Alexander ,  Christopher Taylor Herring

IPC: G01J502

CPC classification number: G01C11/00

Abstract: A method and system are disclosed for imaging a planetary surface region of interest (ROI). In a primary application, a plurality of space vehicles having antennas mounted thereupon are utilized to collect thermal radiation emitted from the ROI and generate corresponding thermal emission signals. Such thermal emission signals may be combined to yield one or more simple interferometric fringes. The simple fringes may be employed to yield a pixel image of the ROI. In one aspect, one or more simple interferometric fringes may be utilized to generate one or more compound interferometric fringes for use in formation of the pixel image. One or more compound fringes may be utilized to generate additional levels of compound fringes for use in formation of the pixel image. In another aspect, the space vehicles may be positioned in a “near-field” imaging arrangement relative to the ROI and a matched filtering approach may be utilized for extracting amplitude data from the interferometric fringe(s) on a basis for use in pixel image formation.

公开(公告)号：US06441375B1

公开(公告)日：2002-08-27

申请号：US09477699

申请日：2000-01-06

Applicant: Gareth Joseph ,  David F. Wood

Inventor： Gareth Joseph ,  David F. Wood

IPC: G01J502

CPC classification number: G01N21/8422 ,  G01N21/3563

Abstract: The automated selection of the best calibration for measuring selected physical, chemical or atomic properties of continuous moving sheets, or of a coating on the sheets, is provided by the use of an on-line qualitative multi-band infrared measurement of the material. The multi-band qualitative measurement produces a spectral pattern of the material, which is matched to a library of potential materials. Once the best spectral pattern match is selected, then the known calibration constant values are used to make quantitative measurements on selected properties of the sheet of material, or of a coating on the material. Typically, a property of interest is the weight per unit area (i.e., grams per square meter) of a plastic coating on a paper substrate. The automated selection may be done on a periodic basis to adapt to variations in the substrate material that would otherwise cause the quantitative measurements of the coating to become erroneous due to calibration errors. Alternatively, the automated selection may be done whenever there is a splice in the substrate material, to catch substrate vendor changes, substrate composition changes or other substrate conditions which may affect calibration values. The automated selection may be done essentially continuously as a check on the quantitative measurements, in response to an alarm such as a quantitative measurement that is outside of a specified range, or in response to a manual operator instruction. With such an arrangement, a coating measurement becomes substrate independent and can maintain proper coating thickness process control over a wider product range, while permitting simpler inventory control.

Abstract translation: 通过使用材料的在线定性多频带红外测量，提供了用于测量连续移动片材或片材上涂层的选定物理，化学或原子性质的最佳校准的自动选择。 多波段定性测量产生材料的光谱图，其与潜在材料库相匹配。 一旦选择了最佳光谱图匹配，则使用已知的校准常数值来对材料片材或材料上的涂层的选定性质进行定量测量。 通常，感兴趣的属性是纸基材上的塑料涂层的每单位面积的重量（即，每平方米的克数）。 自动选择可以周期性地进行，以适应底层材料的变化，否则会导致涂层的定量测量由于校准误差而变得错误。 或者，每当衬底材料中存在接合，捕获衬底供应商变化，衬底组成变化或可能影响校准值的其它衬底条件时，可以进行自动选择。 响应于诸如在指定范围之外的定量测量的报警，或响应于手动操作员指令，自动选择可以基本上连续地进行，作为对定量测量的检查。 通过这样的布置，涂层测量成为不依赖于基板的，并且可以在更宽的产品范围内保持适当的涂层厚度过程控制，同时允许更简单的库存控制。

公开(公告)号：US06429429B1

公开(公告)日：2002-08-06

申请号：US09598284

申请日：2000-06-22

Applicant: Timothy Fohl ,  Jeffrey Thomas Remillard ,  Willes H. Weber

Inventor： Timothy Fohl ,  Jeffrey Thomas Remillard ,  Willes H. Weber

IPC: G01J502

CPC classification number: G02B5/136 ,  G02B23/12 ,  H04N5/2256 ,  H04N5/33

Abstract: A night vision system 10 is provided for detecting objects at relatively low visible light levels. The system 10 includes an infrared light source 14. The system 10 further includes a thin sheet optical element 16 extending along a first axis 27 receiving light from the infrared light source 14 and reflecting the light generally in a first direction. Finally, the system 10 includes an infrared camera for receiving the light reflected off objects in the environment and generating a video signal responsive to the received light.

Abstract translation: 提供了一种用于在相对低的可见光水平检测物体的夜视系统10。 系统10包括红外光源14.系统10还包括沿着接收来自红外光源14的光并沿着第一方向反射光的第一轴线27延伸的薄片光学元件16。 最后，系统10包括用于接收环境中反射的物体的光的红外摄像机，并且响应于所接收的光产生视频信号。

公开(公告)号：US06359278B1

公开(公告)日：2002-03-19

申请号：US09474496

申请日：1999-12-29

Applicant: James E. Graham

Inventor： James E. Graham

IPC: G01J502

CPC classification number: G01N21/3504 ,  G01N21/3518

Abstract: A method of stabilizing temperature effects on a gas analyzer includes transmitting infrared energy through a plurality of cells in a reference cell drum to a sensor in the gas analyzer. The plurality of cells include at least one cell containing a reference gas and at least one cell containing an air reference. The method also includes interposing a filter in at least one of the plurality of cells in the reference cell drum, wherein energy from the infrared beam is reduced. The method further includes rotating the reference cell drum such that the infrared energy fully passes through each of the plurality of cells for a limited period of time such that the sensor generates a substantial sine wave signal.

Abstract translation: 稳定气体分析仪温度影响的方法包括将红细胞能量通过参考电池鼓中的多个电池传输到气体分析仪中的传感器。 多个细胞包括至少一个含有参考气体的细胞和至少一个包含空气参考的细胞。 该方法还包括在参考单元鼓中的多个单元中的至少一个单元中插入滤波器，其中来自红外光束的能量减小。 该方法还包括旋转参考单元鼓，使得红外能量在有限的时间周期内完全通过多个单元中的每一个，使得传感器产生大量的正弦波信号。

公开(公告)号：US06353223B1

公开(公告)日：2002-03-05

申请号：US09374506

申请日：1999-08-16

Applicant: Norio Ookawa

Inventor： Norio Ookawa

IPC: G01J502

CPC classification number: H04N5/365 ,  G01J5/522 ,  G01J2005/0048 ,  G01J2005/0077 ,  G01J2005/068 ,  H04N5/33

Abstract: An infrared camera capable of automatically executing offset compensation so that fixed pattern noise is removed without the need of an operator comprises an offset compensation signal generation circuit and a shutter. The shutter is closed based on an offset compensation execution signal for carrying out offset compensation, the signal being automatically and periodically generated by the offset compensation signal generation circuit after execution of the first offset compensation.

Abstract translation: 能够自动执行偏移补偿的红外摄像机，使得固定模式噪声在不需要操作者的情况下被去除，包括偏移补偿信号发生电路和快门。 基于用于进行偏移补偿的偏移补偿执行信号来关闭快门，该信号在执行第一偏移补偿之后由偏移补偿信号发生电路自动且周期性地产生。

公开(公告)号：US06300633B1

公开(公告)日：2001-10-09

申请号：US09110526

申请日：1998-07-06

Applicant: Robert N. Hunt ,  Gary F. Allen ,  Julie A. Jackson ,  Peter Scharein ,  Peter J. Ryan ,  Donald Macnaughton, Jr. ,  Klaus Sommer ,  Larry E. Philyaw

Inventor： Robert N. Hunt ,  Gary F. Allen ,  Julie A. Jackson ,  Peter Scharein ,  Peter J. Ryan ,  Donald Macnaughton, Jr. ,  Klaus Sommer ,  Larry E. Philyaw

IPC: G01J502

CPC classification number: G01N21/359 ,  G01N21/3577 ,  G01N21/8507

Abstract: An in-line spectrometric method for determining the distillation residue content in an opaque, dark-colored mixture containing an isocyanate and tar-like materials (residue) during the isocyanate production process. A probe capable of directing light at wavelengths of from 1050 to 2150 nm is inserted in a stream of the residue-containing mixture and light is transmitted through the stream. Light absorption data is collected and a near-infrared spectrum is generated. The residue content is then determined using a chemometric model. Knowledge of the residue content makes it possible to control and optimize the distillation process.

Abstract translation: 用于在异氰酸酯生产过程中测定含有异氰酸酯和焦油状物质（残余物）的不透明，深色混合物中的蒸馏残留物含量的在线光谱测定方法。 将能够将来自1050〜2150nm的波长的光引导的探针插入含有残留物的混合物的流中，并且光通过流传输。 收集光吸收数据并产生近红外光谱。 然后使用化学计量学模型确定残余物含量。 了解残留物含量使得可以控制和优化蒸馏过程。

公开(公告)号：US06791088B1

公开(公告)日：2004-09-14

申请号：US10138399

申请日：2002-05-03

Applicant: William J. Williams, II ,  Glenn A. Dejong

Inventor： William J. Williams, II ,  Glenn A. Dejong

IPC: G01J502

CPC classification number: G01N21/11 ,  G01M3/047 ,  G01N21/3504 ,  G01N2201/0221

Abstract: A leak detector using an infrared emitter and pyroelectric sensor to form an instrument for identifying the presence and concentration of a selected material type gas compound, such as a refrigerant gas compound within a given sample, such as a sample of ambient air. For the detection, a radiation flux coming from an infrared emitter penetrates the sample, which is analyzed spectrally, and results in a wave length-specific signal being generated at the output of the detector. By controlling the type of optical filter, the radiation energy is controlled at a selected wavelength, to ensure coverage of all selected compounds. For refrigerants, the selected wavelength can be between approximately 8 to approximately 10 microns in the wavelength range. This selected wavelength obscures other signals, thus minimizing false alarms. By not chopping or pulsing the emitter, the leak detector has a faster response time with no adverse impacts on the accuracy of the compound material being detected. To further minimize false alarms and to ensure that the emitter does not come in contact with the sample gas, an additional filter can be positioned in the optical path. For refrigerant compounds, the filter can block out signals below approximately 6 microns. For detecting refrigerants, two filters can be used: 1) a broadband filter to allow detection of all refrigerants currently on the market, and 2) a narrowband filter to limit detection only to R134a which possesses a narrow wavelength, so that detection of other compounds (or contaminants) can be minimized.

Abstract translation: 一种使用红外发射器和热释电传感器的泄漏检测器，用于形成用于识别所选材料型气体化合物（例如给定样品内的制冷剂气体化合物，例如环境空气样品）的存在和浓度的仪器。 为了检测，来自红外发射器的辐射通量穿透样品，其被频谱分析，并导致在检测器的输出处产生波长特定信号。 通过控制滤光器的类型，辐射能量被控制在选定的波长，以确保覆盖所有选定的化合物。 对于制冷剂，所选择的波长在波长范围内可以在约8至约10微米之间。 该选择的波长掩盖了其他信号，从而使假警报最小化。 通过不斩波或脉冲发射器，泄漏检测器具有更快的响应时间，对被检测的复合材料的精度没有不利影响。 为了进一步最小化假警报并确保发射器不与样品气体接触，可以在光路中定位附加的滤光器。 对于制冷剂化合物，过滤器可以阻挡大约6微米以下的信号。 为了检测制冷剂，可以使用两个过滤器：1）宽带过滤器，用于检测目前市场上的所有制冷剂，以及2）窄带过滤器，仅限于具有窄波长的R134a检测，以便检测其他化合物 （或污染物）可以最小化。

公开(公告)号：US06753527B1

公开(公告)日：2004-06-22

申请号：US09937989

申请日：2002-01-07

Applicant: Takahiro Yamagishi ,  Shigeki Tamura

Inventor： Takahiro Yamagishi ,  Shigeki Tamura

IPC: G01J502

CPC classification number: G01N21/909 ,  G01F23/2921 ,  G01N21/359 ,  G01N21/9027 ,  G01N21/9054

Abstract: The present invention relates to a method and an apparatus for imaging a liquid-filling container in which a plurality of imaging devices each comprising a light emitting unit and a light receiving unit are provided. Light from each light emitting unit is irradiated onto a liquid-filling container and this light transmitted through the container is received by each light receiving unit. The object of the present invention is to provide such method and an apparatus for imaging a liquid-filling container. This method or apparatus allows for simultaneous and highly reliable imaging of two or more kinds of condition of the container. For accomplishing this object, according to the present invention, wavelengths of the lights emitted by the respective light emitting units and received by the respective light receiving units of the imaging devices for imaging the liquid-filling containers are different from each other.

Abstract translation: 本发明涉及一种用于成像液体填充容器的方法和装置，其中设置有包括发光单元和光接收单元的多个成像装置。 来自每个发光单元的光被照射到液体填充容器上，并且透过容器的光被每个光接收单元接收。 本发明的目的是提供这样一种用于使液体充填容器成像的方法和装置。 该方法或装置允许同时且高度可靠地成像容器的两种或多种状态。 为了实现该目的，根据本发明，由各个发光单元发射并由用于成像液体充填容器的成像装置的各个光接收单元接收的光的波长彼此不同。