公开(公告)号：US08558201B2

公开(公告)日：2013-10-15

申请号：US13256194

申请日：2010-03-13

Applicant: Ralf Bitter ,  Camiel Heffels ,  Thomas Hörner

Inventor： Ralf Bitter ,  Camiel Heffels ,  Thomas Hörner

IPC: A61N5/06 ,  G01J3/10 ,  H05G2/00 ,  H05B3/20

CPC classification number: H05B3/141 ,  G01J3/108 ,  G01K7/183 ,  G01K2217/00 ,  G01N21/3504 ,  G01N2201/06186 ,  H01K1/18 ,  H01K7/00 ,  H05B3/265 ,  H05B2203/032

Abstract: A method and device for measuring the soot load in the exhaust gas systems of diesel engines using a sensor which is mounted downstream of a particulate filter and comprises a sensor element, to measure the operability of the particulate filter. According to the method, the soot load of the sensor element is measured resistively or capacitively using electrodes. The measuring voltage of the sensor element is controlled depending on at least one actual operating parameter of the diesel engine.

Abstract translation: 一种用于测量柴油发动机的排气系统中的烟灰负荷的方法和装置，所述传感器安装在颗粒过滤器的下游，并且包括传感器元件，以测量微粒过滤器的可操作性。 根据该方法，使用电极电阻或电容地测量传感器元件的烟灰负荷。 传感器元件的测量电压根据柴油发动机的至少一个实际操作参数来控制。

公开(公告)号：US20130258341A1

公开(公告)日：2013-10-03

申请号：US13431676

申请日：2012-03-27

Applicant: David R. DAY ,  Daniel Robert Klevisha

Inventor： David R. DAY ,  Daniel Robert Klevisha

IPC: G01J3/42

CPC classification number: G01J3/0289 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/108

Abstract: A sampling accessory coupled to a hand-held reflectance spectrometer provides expanded sampling area which in turn provides better signal averaging from agricultural products which are often inhomogeneous. The sampling accessory includes a sample site repositioning means and a “sample cup” having a base that is transparent to near IR wavelengths.The hand-held reflectance spectrometer includes a shutter responsive to control signals from the control circuitry. When the shutter is closed, a reference measurement may be made. When the shutter is open, a sample measurement is taken.Sample repositioning and data acquisition within the cup may be performed by several means. Fresh sample regions may be exposed through either manual or motor driven sample cup rotation. Alternatively, the sample may be vibrated to induce fresh sample exposure at the window. A further embodiment includes illumination and/or detection paths that may be altered through electrically driven steering optics.

Abstract translation: 耦合到手持反射光谱仪的采样附件提供扩展的采样区域，其进而提供了通常不均匀的农产品的更好的信号平均。 采样附件包括样品位点重新定位装置和具有对近红外波长透明的基底的“样品杯”。 手持式反射光谱仪包括响应于来自控制电路的控制信号的快门。 当快门关闭时，可以进行参考测量。 当快门打开时，进行样品测量。 杯中的样品重新定位和数据采集可以通过几种方式进行。 新鲜的样品区域可能通过手动或电动驱动的样品杯旋转暴露。 或者，可以振动样品以在窗口处引起新鲜样品曝光。 另一实施例包括可以通过电驱动转向光学器件改变的照明和/或检测路径。

公开(公告)号：US20120199745A1

公开(公告)日：2012-08-09

申请号：US13421012

申请日：2012-03-15

Applicant: Dale C. Flanders ,  Petros Kotidis

Inventor： Dale C. Flanders ,  Petros Kotidis

IPC: G01J5/08 ,  G06K7/10

CPC classification number: G01J3/4338 ,  G01J3/0286 ,  G01J3/108 ,  G01J3/26 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/39

Abstract: A near infrared (NIR) semiconductor laser system is shown for gas sensing. An embodiment is centered on the use of a system with a much wider tunable laser, which today has a scan band of more than 150 nanometers (nm) to as much as 250 nm or more. In some cases the scan band is about 400 nm or more. This is achieved in the current embodiment through the use of a widely tunable microelectromechanical system (MEMS) based Fabry-Perot filter as an integral part of the laser cavity. Using this technology, these systems are capable of capturing a variety of gases in the any of the well-known spectroscopic scan bands, such as the OH, NH or CH. For example, a single laser with a 250 nm scan band window between 1550-1800 nm can capture ten or as many as twenty hydrocarbon-based gases simultaneously.

Abstract translation: 示出了用于气体感测的近红外（NIR）半导体激光系统。 一个实施例集中于使用具有更宽可调谐激光器的系统，该激光器今天具有超过150纳米（nm）至多达250nm或更多的扫描带​​。 在某些情况下，扫描带约为400nm或更大。 这在当前的实施例中通过使用基于广泛可调谐的微机电系统（MEMS）的法布里 - 珀罗滤波器作为激光腔的组成部分来实现。 使用这种技术，这些系统能够捕获任何众所周知的光谱扫描带，例如OH，NH或CH中的各种气体。 例如，在1550-1800nm之间具有250nm扫描带窗口的单个激光器可以同时捕获十个或多达二十个基于烃的气体。

公开(公告)号：US20120032081A1

公开(公告)日：2012-02-09

申请号：US13196134

申请日：2011-08-02

Applicant: Takeaki Itsuji

Inventor： Takeaki Itsuji

IPC: G01J5/02 ,  G01J5/10 ,  G01J3/10

CPC classification number: G01N21/3581 ,  G01J3/108 ,  G01J3/42 ,  G01N21/3586 ,  G02F1/35 ,  G02F2203/13

Abstract: A terahertz-wave generating device including an optical waveguide containing an electrooptic crystal includes: first and second optical waveguides through which first and second light beams respectively propagate; a propagation portion through which a first terahertz wave propagates, the first terahertz wave being generated from the second optical waveguide in a direction different from a direction of the second light beam; and a delay portion arranged at incidence sides of the first and second light beams and configured to delay the first light beam relative to the second light beam. The first optical waveguide and the second optical waveguide are arranged with the propagation portion interposed therebetween. A first equiphase surface of the first terahertz wave is substantially aligned with a second equiphase surface of a second terahertz wave generated from the first optical waveguide in a direction different from a direction of the first light beam.

Abstract translation: 包括含有电光晶体的光波导的太赫兹波发生装置包括：分别传播第一和第二光束的第一和第二光波导; 第一太赫波传播的传播部分，第一太赫波在与第二光束的方向不同的方向上从第二光波导产生; 以及延迟部分，布置在第一和第二光束的入射侧，并被配置为相对于第二光束延迟第一光束。 第一光波导和第二光波导布置成传播部分插入其间。 第一太赫兹波的第一同相表面与从第一光波导产生的与第一光束的方向不同的方向基本上与第二太赫波的第二同相表面对准。

公开(公告)号：US08035083B1

公开(公告)日：2011-10-11

申请号：US12099043

申请日：2008-04-07

Applicant: Vladimir G. Kozlov ,  Walter C. Hurlbut

Inventor： Vladimir G. Kozlov ,  Walter C. Hurlbut

IPC: G01J5/02 ,  H01S3/10

CPC classification number: G01J3/108

Abstract: A source of terahertz radiation at a fundamental terahertz frequency is tunable over a fundamental terahertz frequency range, and is coupled into a first waveguide. The first waveguide supports only a single transverse spatial mode within the fundamental terahertz frequency range. A solid-state frequency multiplier receives from the first waveguide the terahertz radiation and produces terahertz radiation at a harmonic terahertz frequency. A second waveguide receives the harmonic terahertz radiation. The tunable terahertz source can comprise a backward wave oscillator with output tunable over about 0.10-0.18 THz, 0.18-0.26 THz, or 0.2-0.37 THz. The frequency multiplier can comprises at least one varistor or Schottky diode, and can comprise a doubler, tripler, pair of doublers, doubler and tripler, or pair of triplers. The terahertz source can be incorporated into a terahertz spectrometer or a terahertz imaging system.

Abstract translation: 基波太赫兹频率处的太赫兹辐射源可在基波太赫兹频率范围内调节，并耦合到第一波导中。 第一个波导在基波太赫兹频率范围内仅支持单个横向空间模式。 固态倍频器从第一波导接收太赫兹辐射并产生谐波太赫频率的太赫兹辐射。 第二个波导接收谐波太赫兹辐射。 可调谐太赫兹源可以包括反向波振荡器，其输出可调节在约0.10-0.18THz，0.18-0.26THz或0.2-0.37THz。 倍频器可以包括至少一个变阻器或肖特基二极管，并且可以包括倍增器，三倍，一对倍增器，倍增器和三通或三对三对。 太赫兹光源可并入太赫兹光谱仪或太赫兹成像系统。

公开(公告)号：US07989821B2

公开(公告)日：2011-08-02

申请号：US12774012

申请日：2010-05-05

Applicant: Henrik Rogne ,  Dag Thorstein Wang ,  Trond Andreas Hansen ,  Sigurd Teodor Moe ,  Alain Ferber

Inventor： Henrik Rogne ,  Dag Thorstein Wang ,  Trond Andreas Hansen ,  Sigurd Teodor Moe ,  Alain Ferber

IPC: H01L21/00 ,  H05B3/10

CPC classification number: H01K1/62 ,  G01J3/108 ,  H01K1/04 ,  H01K1/16 ,  H01K1/18

Abstract: A sealed infrared radiation source includes an emitter membrane stimulated by an electrical current conducted through the membrane, which acts like an electrical conductor, wherein the membrane is mounted between first and second housing parts, at least one being transparent in the IR range, each housing part defining a cavity between the membrane and the respective housing part of each side of the membrane. The housing parts are at least partially electrical conductive, and a first of the housing parts is electrically coupled to a first end of the electrical conductor and insulated from the second end of the electrical conductor, the second housing part being electrically coupled to a second end of the electrical conductor and being insulated from the first end of the electrical conductor, thus allowing a current applied from the first housing part to the second housing part to pass through and heat the membrane.

Abstract translation: 密封的红外线辐射源包括由通过膜传导的电流刺激的发射体膜，其作用类似于电导体，其中膜安装在第一和第二壳体部分之间，至少一个在IR范围内是透明的，每个壳体 部分限定膜和膜的每一侧的相应壳体部分之间的空腔。 壳体部分至少部分地导电，并且第一壳体部分电耦合到电导体的第一端并与电导体的第二端绝缘，第二壳体部分电耦合到第二端 并且与电导体的第一端绝缘，从而允许从第一壳体部分到第二壳体部分施加的电流通过并加热膜。

公开(公告)号：US20110168891A1

公开(公告)日：2011-07-14

申请号：US12116659

申请日：2008-05-07

Applicant: Daniel van der Weide ,  John Grade

Inventor： Daniel van der Weide ,  John Grade

IPC: G02B26/10 ,  G01J5/00

CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/0224 ,  G01J3/108 ,  G01N21/3563 ,  G01N21/3581 ,  G01N2201/0221

Abstract: The present invention provides devices, systems and methods for imaging and sensation of objects. In particular, the present invention provides devices, systems and methods for spectroscopic imaging and sensation of objects.

Abstract translation: 本发明提供了用于成像和感觉物体的装置，系统和方法。 特别地，本发明提供了用于分光成像和物体感觉的装置，系统和方法。

公开(公告)号：US07973696B2

公开(公告)日：2011-07-05

申请号：US11638042

申请日：2006-12-12

Applicant: Irina Puscasu ,  Edward A. Johnson

Inventor： Irina Puscasu ,  Edward A. Johnson

IPC: H01Q17/00 ,  H01Q15/14 ,  H04K3/00 ,  G01S7/02 ,  G01S13/00

CPC classification number: H01Q15/0066 ,  G01J3/108 ,  G01N21/3504 ,  G02F1/19 ,  G02F2201/083 ,  G02F2201/307 ,  G02F2202/10 ,  G02F2203/055 ,  G02F2203/10 ,  G02F2203/11 ,  G02F2203/48 ,  H01Q15/006

Abstract: Methods and apparatus for providing a tunable absorption-emission band in a wavelength selective device are disclosed. A device for selectively absorbing incident electromagnetic radiation includes an electrically conductive surface layer including an arrangement of multiple surface elements. The surface layer is disposed at a nonzero height above a continuous electrically conductive layer. An electrically isolating intermediate layer defines a first surface that is in communication with the electrically conductive surface layer. The continuous electrically conductive backing layer is provided in communication with a second surface of the electrically isolating intermediate layer. When combined with an infrared source, the wavelength selective device emits infrared radiation in at least one narrow band determined by a resonance of the device. In some embodiments, the device includes a control feature that allows the resonance to be selectively modified. The device has broad applications including gas detection devices and infrared imaging.

Abstract translation: 公开了一种用于在波长选择装置中提供可调吸收发射带的方法和装置。 用于选择性地吸收入射电磁辐射的装置包括包括多个表面元件的布置的导电表面层。 表层设置在连续导电层上方的非零高度处。 电隔离中间层限定与导电表面层连通的第一表面。 连续导电背衬层设置成与电绝缘中间层的第二表面连通。 当与红外源组合时，波长选择装置在由装置的谐振确定的至少一个窄带中发射红外辐射。 在一些实施例中，该装置包括允许选择性地修改共振的控制特征。 该装置具有广泛的应用，包括气体检测装置和红外成像。

公开(公告)号：US20110058176A1

公开(公告)日：2011-03-10

申请号：US12263948

申请日：2008-11-03

Applicant: Christian Pflugl ,  Benjamin G. Lee ,  Laurent Diehl ,  Mikhail A. Belkin ,  Federico Capasso ,  Thomas J. Tague, JR.

Inventor： Christian Pflugl ,  Benjamin G. Lee ,  Laurent Diehl ,  Mikhail A. Belkin ,  Federico Capasso ,  Thomas J. Tague, JR.

IPC: G01J3/45 ,  G01J5/02

CPC classification number: G01J3/108 ,  B82Y20/00 ,  G01J3/4338 ,  H01S5/024 ,  H01S5/0612 ,  H01S5/3402 ,  H01S5/4062 ,  H01S5/4087

Abstract: A mid infrared spectrometer comprises a high brightness broadband source that generates an output with a broad spectral range in the order of hundreds of wave numbers, a wavelength dispersive element and a detector. In one embodiment, the source comprises an array of semiconductor laser devices operating simultaneously. Each device emits light at wavelength different from the wavelengths emitted by the other devices in the array and the devices are arranged so that the combined output continuously covers the broad spectral range. In another embodiment, each of the lasers in the array is a quantum cascade laser device. In still another embodiment, the quantum cascade laser devices in the array are operated in the regime of Risken-Nummedal-Graham-Haken (RNGH) instabilities. In yet another embodiment, each of the lasers in the array is a mode-locked quantum cascade laser device.

Abstract translation: 中红外光谱仪包括高亮度宽带源，其产生具有数百个波数量级的宽光谱范围的输出，波长色散元件和检测器。 在一个实施例中，源包括同时操作的半导体激光器件阵列。 每个器件发射波长不同于阵列中其他器件发射的波长的光，并且器件被布置成使得组合输出连续地覆盖宽光谱范围。 在另一个实施例中，阵列中的每个激光器是量子级联激光器件。 在又一个实施例中，阵列中的量子级联激光器件在Risken-Nummedal-Graham-Haken（RNGH）不稳定的状态下运行。 在另一个实施例中，阵列中的每个激光器是锁模量子级联激光器件。

公开(公告)号：US20100302546A1

公开(公告)日：2010-12-02

申请号：US12472861

申请日：2009-05-27

Applicant: Masud Azimi ,  Arran Bibby ,  Christopher Brown ,  Kevin J. Knopp ,  Daryoosh Vakhshoori

Inventor： Masud Azimi ,  Arran Bibby ,  Christopher Brown ,  Kevin J. Knopp ,  Daryoosh Vakhshoori

IPC: G01N21/00 ,  G01J1/10

CPC classification number: G01N21/8507 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/0256 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/108 ,  G01N21/3504 ,  G01N2021/3595

Abstract: A portable device includes a base unit, an extension, and a mirror. The base unit includes a light source, a light detector, and at least one window through which light exits from, and is received by, the base unit. The extension is configured, during use, to be attached to the base unit and to extend from the at least one window, in a direction away from the base unit, the extension defining at least a portion of a sample volume in fluid communication with gases substantially surrounding one or more of the extension and the base unit. The mirror is attached to the extension at a distance from the at least one window. An optical path is defined between the mirror and the at least one window such that light from the light source moves through the sample volume along the optical path, and the mirror is aligned to reflect the light back to the at least one window for detection by the light detector.

Abstract translation: 便携式设备包括基座单元，延伸部和反射镜。 基座单元包括光源，光检测器和至少一个窗口，光从该窗口射出并被基座单元接收。 所述延伸部在使用期间构造成附接到所述基座单元并且在远离所述基座单元的方向上从所述至少一个窗口延伸，所述延伸部限定与气体流体连通的至少一部分样品体积 基本上围绕延伸部分和基部单元中的一个或多个。 镜子与至少一个窗口相距一定距离地附着在延伸部上。 在镜和至少一个窗口之间限定光路，使得来自光源的光沿着光路移动通过样本体积，并且镜对准以将光反射回至少一个窗口，以便通过 光检测器。