公开(公告)号：US12055483B2

公开(公告)日：2024-08-06

申请号：US17263747

申请日：2019-07-23

Applicant: Dräger Safety AG & Co. KGaA

Inventor： Patrick Schmidt-Kaeding

IPC: G01N21/3504

CPC classification number: G01N21/3504 ,  G01N2021/3513 ,  G01N2201/0631

Abstract: A detection system with a two-step homogenizing device (1) and with a receiver (42). Viewed in a field direction (54) of a photon field, the homogenizing device (1) is located between a measurement area (44) and the receiver (42). The homogenizing device (1) includes a first diffuser (10) and a second diffuser (12). The first diffuser (10) generates an intermediate photon field from an input photon field. The second diffuser (12) generates an output photon field from the intermediate photon field. The receiver (42) generates signals depending on the incident photon field.

公开(公告)号：US20240151640A1

公开(公告)日：2024-05-09

申请号：US18548955

申请日：2021-05-19

Applicant: Schlumberger Technology Corporation

Inventor： Sebastien Catheline ,  Francis Allouche

IPC: G01N21/31 ,  G01N21/39 ,  G01N21/3504

CPC classification number: G01N21/314 ,  G01N21/39 ,  G01N2021/3513

Abstract: Gas monitoring systems (500) and methods for determining a burning hydrocarbon effluent gas plume property. A laser emission system emits laser beams (564) along a path through the plume (532). A detection system facilitates determining intensity data indicative of intensities of the laser beams (564) backscattered by a surface (522) after passing through the plume (532). The laser emission system emits a first laser beam (564) along the path while tuning its wavelength around a wavelength corresponding to a CO2 spectral absorption line. The laser emission system emits a second laser beam (564) along the path while tuning its wavelength around a wavelength corresponding to a spectral absorption line of a second predetermined gas. The processing system determines a first concentration path length of the CO2 based on the first intensity data, a second concentration path length of the second predetermined gas based on the second intensity data, and the plume property based on the determined concentration path lengths. The plume property may be the rate of emission of the second predetermined gas or the combustion efficiency.

公开(公告)号：US20190145891A1

公开(公告)日：2019-05-16

申请号：US16129731

申请日：2018-09-12

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Terrence K. Jones ,  Jason M. Bylsma ,  Stefan Bokaemper

IPC: G01N21/3504 ,  G01N33/22

CPC classification number: G01N21/3504 ,  E21B41/0021 ,  G01F1/661 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/06 ,  G01J3/10 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/42 ,  G01J2003/1213 ,  G01J2003/1221 ,  G01J2003/2806 ,  G01J2003/2826 ,  G01M3/20 ,  G01M3/38 ,  G01N21/359 ,  G01N33/0036 ,  G01N33/225 ,  G01N2021/1795 ,  G01N2021/3513 ,  G01N2201/101

Abstract: Presented herein are systems and methods directed to a multispectral absorption-based imaging approach that provides for rapid and accurate detection, localization, and quantification of gas leaks. The imaging technology described herein utilizes a scanning optical sensor in combination with structured and scannable illumination to detect and image spectral signatures produced by absorption of light by leaking gas in a quantitative manner over wide areas, at distance, and in the presence of background such as ambient gas and vapor. Moreover, the specifically structured and scannable illumination source of the systems and methods described herein provides a consistent source of illumination for the scanning optical sensor, allowing imaging to be performed even in the absence of sufficient natural light, such as sunlight. The imaging approaches described herein can, accordingly, be used for a variety of gas leak detection, emissions monitoring, and safety applications.

公开(公告)号：US20180266946A1

公开(公告)日：2018-09-20

申请号：US15981298

申请日：2018-05-16

Applicant: Block Engineering, LLC

Inventor： Petros A. Kotidis ,  Erik Deutsch ,  Hongke Ye ,  Alexander Mazurenko ,  Anish K. Goyal ,  Jeffrey S. Socha

IPC: G01N21/39 ,  G01J3/433 ,  H01S5/062 ,  G01J3/10 ,  H01S5/34 ,  G01N21/3504 ,  G01N21/17 ,  G01N21/03 ,  H01S5/40

CPC classification number: G01N21/39 ,  G01J3/108 ,  G01J3/433 ,  G01N21/031 ,  G01N21/3504 ,  G01N2021/1704 ,  G01N2021/3513 ,  G01N2021/399 ,  G01N2201/0612 ,  H01S5/0622 ,  H01S5/3401 ,  H01S5/4012 ,  H01S5/4025 ,  H01S5/4087

Abstract: A system and method are disclosed for gas sensing over a wide tunable wavelength range provided by one or more quantum cascade lasers. A laser beam is generated within the wide tunable wavelength range, which is given by the sum of the wavelength ranges from the individual lasers. Gas sensing or detection is achieved by obtaining an infrared absorption spectrum for a sample contained in one or more cells having different path lengths for the laser beam.

公开(公告)号：US20170345296A1

公开(公告)日：2017-11-30

申请号：US15484758

申请日：2017-04-11

Applicant: Robert Allen Dukish

Inventor： Robert Allen Dukish

IPC: G08G1/09 ,  G01N21/3504 ,  G01W1/00 ,  H05B37/02

CPC classification number: G08G1/09 ,  G01N21/3504 ,  G01N2021/3513 ,  G01W1/00 ,  G08G1/095 ,  G08G1/096716 ,  G08G1/096758 ,  G08G1/096783 ,  H05B37/0272 ,  H05B37/0281

Abstract: An automated roadway marker system that illuminates and provides warning and lane demarcation under poor visibility conditions utilizing IR beam-break transceivers where no deployment considerations need to be made for the first in a sequence, because each marker operationally establishes its linkage condition in an intermittently activated asynchronous pseudo-network. The devices are designed for extremely low power consumption, so that solar energy can be utilized as a power source. The markers can additionally be linked through radio frequency signals, and to provide a warning to mobile and stationary radio frequency receivers. Additionally, the markers can be illuminated via transmissions from mobile and stationary transmitters.

公开(公告)号：US20170205339A1

公开(公告)日：2017-07-20

申请号：US15476278

申请日：2017-03-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Seongsik Chang ,  Henryk Birecki ,  Krzysztof Nauka

IPC: G01N21/35 ,  G01N21/15

CPC classification number: G01N21/35 ,  G01N21/15 ,  G01N21/3504 ,  G01N2021/151 ,  G01N2021/3513

Abstract: In some examples, an image sensor system comprises a source module including a source housing having a source window and a source shielding member, the source module to emit a detection signal through the source window. the source shielding member surrounding the source window and extending in an outward direction from the source window. The image sensor system further comprises a detection module including a detection housing having a detection window and a detection shielding member, the detection module spaced apart from the source module and to detect the detection signal emitted from the source module and passed through the detection window, the detection shielding member surrounding the detection window and extending in an outward direction from the detection window.

公开(公告)号：US20150355082A1

公开(公告)日：2015-12-10

申请号：US14760608

申请日：2014-01-10

Applicant: DETECTOR ELECTOR NICS CORPORATION

Inventor： Liangju Lu ,  John King

IPC: G01N21/3504 ,  G01J3/42 ,  G01N21/39

CPC classification number: G01J3/36 ,  G01J3/2823 ,  G01J3/42 ,  G01J2003/423 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/39 ,  G01N33/0031 ,  G01N2021/3513

Abstract: In implementations, an open path gas detector is disclosed that can include imaging or non-imaging optical components. The detector can include components that allow for misalignment of radiation received by the detector of about 1 without causing false alarms. In implementations, the detector can include a beam splitter or a wavelength-division multiplexing filter to allow for more of the radiation received by the detector to be detected by the sensors.

Abstract translation: 在实施方式中，公开了可以包括成像或非成像光学部件的开路气体检测器。 检测器可以包括允许由检测器接收的辐射未对准约1的组件，而不引起假警报。 在实现中，检测器可以包括分束器或波分复用滤波器，以允许检测器接收的更多的辐射由传感器检测。

公开(公告)号：US20150226719A1

公开(公告)日：2015-08-13

申请号：US14614710

申请日：2015-02-05

Applicant: Dräger Safety AG & Co. KGaA

Inventor： Wilfried DIEKMANN

IPC: G01N33/00 ,  G01N21/55

CPC classification number: G01N33/0073 ,  G01N21/01 ,  G01N21/3504 ,  G01N21/55 ,  G01N33/0027 ,  G01N2021/3513 ,  G01N2201/02 ,  G01N2201/021 ,  G01N2201/061

Abstract: A gas detection device with at least one functional device (1), which is fixed to a platform, is pivotable about at least two pivot axes (2, 3) relative to the platform. The functional device (1) is designed to emit and/or receive or reflect radiation that is analyzably variable due to the presence of a gas to be detected. The gas detection device has an adjusting device (9), which has a fixing device for temporary fixation to the platform and an application device for the defined application on the functional device (1) of forces that lead to a pivoting about the pivot axes (2, 3). The application device acts detachably on the functional device (1).

Abstract translation: 具有固定到平台的至少一个功能装置（1）的气体检测装置可相对于平台围绕至少两个枢转轴线（2,3）枢转。 功能装置（1）被设计为发射和/或接收或反射由于要检测的气体的存在而可分析地变化的辐射。 气体检测装置具有调节装置（9），其具有用于临时固定到平台的固定装置和用于在功能装置（1）上限定应用的施加装置（1），其导致围绕枢转轴线的枢转 2，3）。 所述应用装置可移动地作用于所述功能装置（1）。

公开(公告)号：US20140008526A1

公开(公告)日：2014-01-09

申请号：US13935988

申请日：2013-07-05

Applicant: Providence Photonics, LLC

Inventor： Yousheng Zeng ,  Jon Morris

IPC: H04N5/33

CPC classification number: H04N5/33 ,  G01J5/0014 ,  G01J5/522 ,  G01J2005/0048 ,  G01J2005/0077 ,  G01M3/007 ,  G01M3/38 ,  G01N21/274 ,  G01N21/3504 ,  G01N2021/3513

Abstract: The calibration/verification system and method for gas imaging infrared cameras standardizes the procedures to objectively and consistently check performance of gas imaging infrared cameras. This system includes a background board maintaining a uniform temperature, a target cell filled with a target compound and disposed in front of the background board, a reference cell filled with a reference compound and disposed in front of the background board, and an analyzer coupled to the camera that captures images of the gas cell and the reference cell. The analyzer compares the intensity difference and the temperature difference of rays passing through the target cell and reference cell to a reference relationship data of a quality control chart to determine whether the camera is in a working condition. The method is further extended to provide a quantitative measurement of a hydrocarbon plume from a gas imaging infrared camera.

Abstract translation: 气体成像红外摄像机的校准/验证系统和方法标准化了客观和一致地检查气体成像红外摄像机性能的程序。 该系统包括保持均匀温度的背景板，填充有目标化合物并设置在背景板前面的目标单元，填充有参考化合物并设置在背景板前面的参考单元，以及耦合到 捕获气室和参考单元的图像的相机。 分析仪将通过目标单元和参考单元的光线的强度差和温度差与质量控制图的参考关系数据进行比较，以确定相机是否处于工作状态。 该方法进一步扩展以提供来自气体成像红外摄像机的烃羽流的定量测量。

公开(公告)号：US08502152B1

公开(公告)日：2013-08-06

申请号：US13745808

申请日：2013-01-20

Applicant: Atmosfir Optics Ltd

Inventor： Ram Hashmonay ,  Robert Howard Kagann ,  Gilad Shpitzer ,  Yair Shpitzer ,  Michael James Chase

IPC: G01N21/35

CPC classification number: G01N21/3504 ,  G01N21/39 ,  G01N33/0067 ,  G01N2021/3513 ,  G01N2021/3595 ,  G01N2021/399

Abstract: The subject matter discloses a method for detecting concentration of air contaminants, comprising obtaining an average sample single beam value, the average sample single beam value comprises a first set of single beam measurements obtained from a detector; obtaining an average background single beam value, the average background single beam value comprises a second set of single beam measurements obtained from the detector; comparing the average sample single beam value to the average background single beam value to determine the concentration of air contamination; continuously updating the averages upon detection of new single beam measurements; wherein the second set of single beam measurements comprises a plurality of single beam measurements that were detected by the detector prior to the detection of the single beam measurements included in the first set of single beam measurements. In some cases, the first set partially overlaps with the second set.

Abstract translation: 主题公开了一种用于检测空气污染物浓度的方法，包括获得平均采样单波束值，平均采样单波束值包括从检测器获得的第一组单波束测量; 获得平均背景单光束值，平均背景单光束值包括从检测器获得的第二组单光束测量; 将平均样本单波束值与平均背景单波束值进行比较，以确定空气污染的浓度; 在检测到新的单光束测量时不断更新平均值; 其中第二组单波束测量包括在检测包括在第一组单波束测量中的单波束测量之前由检测器检测的多个单波束测量。 在某些情况下，第一组与第二组部分重叠。