公开(公告)号：US09540604B2

公开(公告)日：2017-01-10

申请号：US13194676

申请日：2011-07-29

Applicant: Sebastien Tixier ,  Adrian M. Fuxman

Inventor： Sebastien Tixier ,  Adrian M. Fuxman

IPC: G01N33/00 ,  C12M1/00 ,  C12M1/34 ,  G01N21/49 ,  G01N21/59 ,  G01N21/63

CPC classification number: C12M21/02 ,  C12M41/32 ,  C12M41/36 ,  G01N21/49 ,  G01N21/5907 ,  G01N2021/635

Abstract: A method includes identifying a chlorophyll concentration/optical density (CCpOD) value using a chlorophyll concentration measurement of an autotroph culture and an optical density measurement of the autotroph culture. The method also includes identifying a change in the autotroph culture using the CCpOD value. The change in the autotroph culture can be identified by determining whether the CCpOD value falls outside upper and lower control limits. The upper and lower control limits can be identified using a specified number of previously-determined CCpOD values, which can be calculated when the autotroph culture is in a known healthy state. Multiple CCpOD values can be calculated, and an alarm can be generated if a specified number of the CCpOD values (such as one or more) fall outside the upper and lower control limits.

Abstract translation: 一种方法包括使用自养培养物的叶绿素浓度测量和自养培养物的光密度测量来鉴定叶绿素浓度/光密度（CCpOD）值。 该方法还包括使用CCpOD值鉴定自养培养物的变化。 可以通过确定CCpOD值是否落在控制上限和下限之外来确定自养培养的变化。 可以使用指定数量的先前确定的CCpOD值来识别上限和下限，当自养培养处于已知健康状态时可以计算。 可以计算多个CCpOD值，如果指定数量的CCpOD值（如一个或多个）落在上限和下限控制范围之外，则可以生成报警。

公开(公告)号：US20150022220A1

公开(公告)日：2015-01-22

申请号：US13947644

申请日：2013-07-22

Applicant: Sebastien Tixier ,  Michael Kon Yew Hughes

Inventor： Sebastien Tixier ,  Michael Kon Yew Hughes

IPC: G01N22/04

CPC classification number: G01N22/04 ,  D21F7/003 ,  D21G9/0036 ,  G01N33/346

Abstract: Microwave techniques for measuring moisture and other properties of paper and related products without requiring an independent measurement of temperature are provided. A sensor directly measures the reflection or transmission of microwaves at a number of well-chosen frequencies so as to characterize the absorption spectrum of the product. The technique of measuring the parameters of a composition includes: (a) directing incident microwave radiation over a spectrum of wavelengths from an antenna upon the composition; (b) measuring the microwave radiation over the spectrum of wavelengths that emerges from the composition; (c) determining the reflected and/or transmitted transfer function; and (d) relating the transfer function of the composition to the parameters of the composition by applying a theoretic, calibrated, or hybrid model. The product moisture and temperature are extracted from the transfer function.

Abstract translation: 提供微波技术，用于测量纸张和相关产品的水分和其他性能，而无需独立测量温度。 传感器直接测量微波的反射或传播，其数量众所周知，以便表征产品的吸收光谱。 测量组合物的参数的技术包括：（a）在组合物上从天线引导入射波长的波长的入射微波辐射; （b）测量从组合物出射的波长光谱上的微波辐射; （c）确定反射和/或传送的传递函数; 和（d）通过应用理论，校准或混合模型将组合物的转移函数与组合物的参数相关联。 从传递函数中提取产品的水分和温度。

公开(公告)号：US20130342844A1

公开(公告)日：2013-12-26

申请号：US13529240

申请日：2012-06-21

Applicant: Sebastien Tixier ,  Adrian M. Fuxman

Inventor： Sebastien Tixier ,  Adrian M. Fuxman

IPC: G01N21/25

CPC classification number: C12N1/14 ,  C12M21/02 ,  C12M41/06 ,  C12Q3/00

Abstract: A method includes measuring intensities of light passing through a sample of an algae culture at different wavelengths. The method also includes identifying, using the measured intensities, a peak absorption wavelength of at least one type of chlorophyll in the sample and/or an absorption ratio involving multiple types of chlorophyll in the sample. The method further includes determining whether the algae culture has a problem using the peak absorption wavelength and/or the absorption ratio. The peak absorption wavelength could be identified by identifying a specified wavelength at which a smallest amount of light passes through the sample. The absorption ratio could be identified by identifying an average absorption wavelength of first and second types of chlorophyll in the sample and identifying a peak absorption wavelength of the first type of chlorophyll.

Abstract translation: 一种方法包括测量穿过不同波长的藻类培养物样品的光强度。 该方法还包括使用测量的强度来鉴定样品中至少一种类型的叶绿素的峰值吸收波长和/或样品中涉及多种类型的叶绿素的吸收比。 该方法还包括使用峰值吸收波长和/或吸收比确定藻类培养物是否具有问题。 可以通过识别最小量的光通过样品的特定波长来识别峰值吸收波长。 可以通过鉴定样品中第一类和第二类叶绿素的平均吸收波长并鉴定第一类叶绿素的峰值吸收波长来鉴定吸收率。

公开(公告)号：US08527212B2

公开(公告)日：2013-09-03

申请号：US13027259

申请日：2011-02-14

Applicant: Michael Kon Yew Hughes ,  Sebastien Tixier

Inventor： Michael Kon Yew Hughes ,  Sebastien Tixier

IPC: G06F19/00 ,  G01N21/35

CPC classification number: G01N21/3563 ,  G01N21/3559 ,  G01N21/359 ,  G01N21/86 ,  G01N21/8901 ,  G01N33/346 ,  G01N33/442 ,  G01N2021/8663 ,  G01N2021/869 ,  G01N2021/8917 ,  G01N2201/0697 ,  G01N2201/128 ,  G01N2201/13

Abstract: Radiation scattering is one of the main contributors to the uncertainty of near infrared (NIR) measurements. Enhanced absorption-measurement accuracy for NIR sensors is achieved by using a combination of NIR spectroscopy and time-of-flight techniques to select photons that are the result of a given mean free path within a moving sample target. By measuring absorption as a function of path length or by windowing signals that are attributable to excessive scattering of NIR radiation within the sample, this technique affords the calculation of more accurate and more universal calibrations. The NIR sensor employs short or ultra-short laser pulses to create NIR that is directed to the moving sample and emerging radiation is detected over time. Windowing effectively truncates non-contributing measurements.

Abstract translation: 辐射散射是近红外（NIR）测量不确定度的主要原因之一。 通过使用NIR光谱和飞行时间技术的组合来选择作为移动样本目标中给定平均自由程的结果的光子，实现NIR传感器增强的吸收测量精度。 通过测量作为路径长度的函数的吸收，或者通过对由于样品内的NIR辐射的过度散射而引起的信号的加窗信号，该技术提供了更准确和更通用的校准的计算。 NIR传感器使用短或超短激光脉冲来产生针对移动样品的NIR，并且随着时间的推移检测出新的辐射。 窗口化有效地截断了无贡献的测量。

公开(公告)号：US08464572B2

公开(公告)日：2013-06-18

申请号：US12899707

申请日：2010-10-07

Applicant: Adam Krolak ,  Reena Meijer Drees ,  Frank M. Haran ,  Sebastien Tixier

Inventor： Adam Krolak ,  Reena Meijer Drees ,  Frank M. Haran ,  Sebastien Tixier

IPC: G01N33/18

CPC classification number: G01N33/18 ,  G01N21/15 ,  G01N21/276 ,  G01N21/3577 ,  G01N21/552 ,  G01N21/8507 ,  G01N33/0029 ,  G01N2021/152

Abstract: A system includes a signal source that provides a first signal for measuring a gas content of a liquid sample. The system also includes an analyzer that determines the gas content of the liquid sample using a measurement of a second signal, where the second signal is based on the first signal. The system further includes an apparatus with a walled structure having a cavity. The apparatus also includes a piston that pulls the liquid sample into the cavity and pushes the liquid sample out of the cavity. The apparatus further includes at least one measurement window having at least one inner surface exposed within the cavity. The at least one measurement window receives the first signal from the signal source and provides the second signal to the analyzer. The piston could also clean the at least one inner surface, and the piston can include a reference material for calibrating the analyzer.

Abstract translation: 一种系统包括提供用于测量液体样品的气体含量的第一信号的信号源。 该系统还包括分析器，其使用第二信号的测量来确定液体样品的气体含量，其中第二信号基于第一信号。 该系统还包括具有空腔的具有壁结构的装置。 该装置还包括将液体样品拉入空腔并将液体样品推出空腔的活塞。 该装置还包括至少一个测量窗口，其具有暴露在空腔内的至少一个内表面。 所述至少一个测量窗口从信号源接收第一信号，并向分析器提供第二信号。 活塞还可以清洁至少一个内表面，并且活塞可以包括用于校准分析器的参考材料。

公开(公告)号：US20120153149A1

公开(公告)日：2012-06-21

申请号：US12973859

申请日：2010-12-20

Applicant: Sebastien Tixier ,  Frank Martin Haran

Inventor： Sebastien Tixier ,  Frank Martin Haran

IPC: G01J5/00 ,  G01N21/86

CPC classification number: G01N21/8422 ,  G01N21/3563

Abstract: An optical, non-contact sensor for measuring the thickness or weight of layered products and particularly those that contain a light-reflective substrate incorporates a reflective surface to cause incident radiation from a light source to plurality of time within the layered products before being detected in a receiver. A diffusing element can be incorporated as a diffuse source of illumination. The Lambertian-type light scattering generated by the diffuse element causes the incident light to interact multiple times with the layered product resulting in enhanced sensor sensitivity to selected components in the layered product and measurement error induced by specular reflection of the light from the reflective substrate is minimized.

Abstract translation: 用于测量分层产品的厚度或重量的光学非接触式传感器，特别是含有光反射基板的光学非接触式传感器包括反射表面，以在被检测到之前将来自光源的入射辐射引入分层产品内的多个时间 接收器 扩散元件可以作为照明的漫射源结合。 由扩散元件产生的朗伯型光散射导致入射光与分层产物相互作用多次，导致对分层产物中所选组分的传感器灵敏度提高，并且来自反射基底的光的镜面反射引起的测量误差为 最小化。

公开(公告)号：US07528958B2

公开(公告)日：2009-05-05

申请号：US11323715

申请日：2005-12-30

Applicant: Michael K Y Hughes ,  Sebastien Tixier

Inventor： Michael K Y Hughes ,  Sebastien Tixier

IPC: G01B9/02

CPC classification number: G01J3/02 ,  G01J3/021 ,  G01N21/86 ,  G01N21/8901 ,  G01N33/34 ,  G01N2021/3595 ,  G01N2021/8917 ,  G01N2201/104

Abstract: An optical scanner for use in conjunction with an infrared spectrometer is disclosed. The optical scanner translates a beam of radiation to a stationary spot on a traveling sheet of material so that ample integration time within the spectrometer is achieved. The beam path impinges on the traveling web and the radiation is reflected off the traveling web back through the optical scanner and recombined at an interferometer. The beam of radiation is kept stationary with respect to both the traveling sheet and the carriage which houses the spectrometer.

Abstract translation: 公开了一种与红外光谱仪一起使用的光学扫描仪。 光学扫描器将辐射束转换成行进的材料片上的固定点，从而实现光谱仪内的充足的积分时间。 光束路径撞击行进网，并且辐射通过光学扫描器反射回行进网，并在干涉仪上重新组合。 辐射束相对于移动片和容纳光谱仪的托架保持静止。

公开(公告)号：US20170059481A1

公开(公告)日：2017-03-02

申请号：US14836959

申请日：2015-08-27

Applicant: Sebastien Tixier

Inventor： Sebastien Tixier

IPC: G01N21/3559 ,  G01N21/25

CPC classification number: G01N21/3559 ,  G01N21/278

Abstract: Near infrared moisture sensors using stable holmium oxide glass calibration standards that simulate different moistures levels in paper obviates problems associated with glass encased paper samples. Holmium oxide glass has a strong absorption at 1.93 microns which is close to absorption by paper. Standards can have varying thicknesses to simulate different moisture levels. Didymium glass can also be used with holmium oxide glass. The moisture sensor operates at reference and measurement infrared regions of 1.94 microns and 1.8 microns, respectively.

Abstract translation: 使用稳定的氧化钬玻璃校准标准的近红外湿度传感器可以模拟纸中不同的湿度水平，从而避免与玻璃包装纸样品相关的问题。 氧化钬玻璃在1.93微米处具有很强的吸收，其接近纸吸收。 标准品可以有不同的厚度来模拟不同的水分含量。 钕玻璃也可与氧化钬玻璃一起使用。 湿度传感器分别在1.94微米和1.8微米的参考和测量红外区域工作。

公开(公告)号：US09441961B2

公开(公告)日：2016-09-13

申请号：US13460275

申请日：2012-04-30

Applicant: Frank M. Haran ,  Sebastien Tixier ,  Michael K. Y. Hughes ,  Graham Duck ,  John F. Shakespeare

Inventor： Frank M. Haran ,  Sebastien Tixier ,  Michael K. Y. Hughes ,  Graham Duck ,  John F. Shakespeare

IPC: G01B5/02 ,  G01B21/04 ,  G01B7/06 ,  G01B11/06 ,  G01N33/34

CPC classification number: G01B21/042 ,  G01B7/107 ,  G01B11/0691 ,  G01N33/346

Abstract: A method includes measuring a caliper of a sheet of material using a caliper sensor having first and second sensor modules. The method also includes adjusting the caliper measurement based on a transverse displacement between a first sensor component in the first sensor module and a second sensor component in the second sensor module to generate a corrected caliper measurement. Adjusting the caliper measurement can include applying a corrector function that adjusts the caliper measurement based on the measured transverse displacement. The corrector function can be identified by repeatedly creating misalignment between the first and second sensor components, measuring a known distance using the caliper sensor, and identifying an error between the measurement of the known distance and the known distance.

Abstract translation: 一种方法包括使用具有第一和第二传感器模块的卡尺传感器测量一张材料的厚度。 该方法还包括基于第一传感器模块中的第一传感器部件与第二传感器模块中的第二传感器部件之间的横向位移来调整卡尺测量值，以产生校正的卡尺测量值。 调整卡尺测量可以包括应用基于测量的横向位移来调节卡尺测量的校正器功能。 可以通过重复地创建第一和第二传感器部件之间的不对准，使用卡尺传感器测量已知距离以及识别已知距离的测量与已知距离之间的误差来识别校正器功能。

公开(公告)号：US20150253127A1

公开(公告)日：2015-09-10

申请号：US14197181

申请日：2014-03-04

Applicant: Michael Kon Yew Hughes ,  Sebastien Tixier ,  Stephane Savard

Inventor： Michael Kon Yew Hughes ,  Sebastien Tixier ,  Stephane Savard

IPC: G01B11/06

CPC classification number: G01B11/0691 ,  G01B11/0625 ,  G01B2210/46

Abstract: Non-contacting caliper measurements of free-standing sheets detect mid-IR interferometric fringes created by the reflection of light from the top and bottom surfaces of the sheet. The technique includes directing a laser beam at a selected angle of incidence onto a single spot on the exposed outer surface and scanning the laser beam through a selected wavelength range as the laser beam is directed onto the exposed outer surface and measuring the intensity of an interference pattern that forms from the superposition of radiation that is reflected from the exposed outer surface and from the inner surface. Alternatively, the intensity of an interference pattern formed from the superposition of radiation that is directly transmitted through the web and radiation that is transmitted through the web after internal reflections from the internal surfaces of the web. Thickness can be extracted from the fringe separation in the interference pattern.

Abstract translation: 独立纸张的非接触式卡尺测量法检测由片材的顶部和底部表面反射的光产生的中红外干涉条纹。 该技术包括将激光束以选定的入射角定向到暴露的外表面上的单个点上，并且当激光束被引导到暴露的外表面上并且测量干涉强度时，将激光束扫过选定的波长范围 从暴露的外表面和内表面反射的辐射的叠加形成的图案。 或者，由内部反射从网的内表面通过幅材直接透过的辐射叠加形成的干涉图案的强度和透过纸幅的辐射。 可以从干涉图案中的边缘分离中提取厚度。