公开(公告)号：US20130301052A1

公开(公告)日：2013-11-14

申请号：US13882902

申请日：2011-10-28

Applicant: Calum John MacGregor ,  Desmond Robert Gibson

Inventor： Calum John MacGregor ,  Desmond Robert Gibson

IPC: G01N21/27

CPC classification number: G01N21/27 ,  G01N21/274 ,  G01N21/3504 ,  G01N33/0006 ,  G01N2201/1211 ,  G01N2201/12723 ,  G01N2201/12753 ,  G01N2201/12792

Abstract: An optical absorption gas sensor has an LED light source and a photodiode light detector, a temperature measuring device for measuring the LED temperature and a temperature measuring device for measuring the photodiode temperature. The sensor is calibrated by measuring the response of photodiode current at zero analyte gas concentration and at a reference analyte gas concentration. From these measurement, calibration data taking into account the effect of photodiode temperature on the sensitivity of the photodiode and, independently, the effect of changes in the spectrum of light output by the LED on the light detected by the photodiode with LED temperature can be obtained. Calibration data is written to memory in the gas sensor and in operation of the gas sensor, the output is compensated for both LED and photodiode temperature. The LED and photodiode can therefore be relatively far apart and operate at significantly different temperatures allowing greater freedom of optical pathway design.

Abstract translation: 光吸收气体传感器具有LED光源和光电二极管光检测器，用于测量LED温度的温度测量装置和用于测量光电二极管温度的温度测量装置。 通过测量零分析气体浓度和参考分析物气体浓度下的光电二极管电流的响应来校准传感器。 从这些测量中，考虑到光电二极管温度对光敏二极管的影响的校准数据，并且独立地，可以获得LED输出的光谱的变化对由LED温度由光电二极管检测的光的影响 。 校准数据被写入气体传感器中的存储器，并且在气体传感器的操作中，输出被补偿LED和光电二极管的温度。 因此，LED和光电二极管可以相对较远并且在显着不同的温度下操作，从而允许更大的光路设计自由度。

公开(公告)号：US07700044B2

公开(公告)日：2010-04-20

申请号：US11033677

申请日：2005-01-12

Applicant: David K. Lambert ,  Larry M. Oberdier ,  Christopher M. Thrush

Inventor： David K. Lambert ,  Larry M. Oberdier ,  Christopher M. Thrush

IPC: G01N30/96

CPC classification number: B82Y30/00 ,  B60K28/06 ,  G01N1/2214 ,  G01N1/405 ,  G01N21/0332 ,  G01N21/05 ,  G01N21/3504 ,  G01N33/4972 ,  G01N2001/2276 ,  G01N2021/158 ,  G01N2201/12707 ,  G01N2201/12792

Abstract: A chemical vapor sensor is provided that passively measures a chemical species of interest with high sensitivity and chemical specificity. In an aspect, ethanol vapor in a vehicle cabin is measured, and sufficient sensitivity is provided to passively detect a motor vehicle driver that exceeds a legal limit of blood alcohol concentration (BAC), for use with vehicle safety systems. The sensor can be situated in an inconspicuous vehicle cabin location and operate independently without requiring active involvement by a driver. A vapor concentrator is utilized to amplify a sampled vapor concentration to a detectible level for use with an infrared (IR) detector. In an aspect, in comparison to conventional chemical sensors, the sensitivity of detection of ethanol vapor is increased by a factor of about 1,000. Further, a single channel of infrared detection is utilized avoiding spurious infrared absorption and making the chemical vapor sensor less costly to implement.

Abstract translation: 提供一种化学气相传感器，被动地测量感兴趣的化学物质，具有高灵敏度和化学特异性。 在一方面，测量车厢内的乙醇蒸气，并且提供足够的灵敏度以被动地检测超过合法限制的血液酒精浓度（BAC）的汽车驾驶员，以用于车辆安全系统。 传感器可以位于不显眼的车厢位置，并且独立操作，而不需要驾驶员的积极参与。 采用蒸汽浓缩器将取样的蒸汽浓度放大到可检测的水平以与红外（IR）检测器一起使用。 在一方面，与传统的化学传感器相比，乙醇蒸气的检测灵敏度提高了大约1,000倍。 此外，利用单个红外线检测通道可避免杂散的红外线吸收，并且使化学气相传感器的执行成本更低。

公开(公告)号：US20090009769A1

公开(公告)日：2009-01-08

申请号：US11899508

申请日：2007-09-06

Applicant: Robert E. Uber ,  John H. Reno, II

Inventor： Robert E. Uber ,  John H. Reno, II

IPC: G01N21/17

CPC classification number: G01N21/1702 ,  G01N2021/1704 ,  G01N2201/12723 ,  G01N2201/12792 ,  H05B33/0818

Abstract: A gas sensor includes a light source, a power source in operative connection with the light source and a control system in operative connection with the light source and the power supply. The control system is adapted to control power input from the power source to the light source such that the time period of the control frequency is shorter than the thermal time constant of at least one of (i) the infrared light source, (ii) the gas within the sensor, or (iii) a detector of the sensor. The time period of the control frequency can, for example, be no greater than ⅓ of the thermal time constant, no greater than 1/10 of the thermal time constant, or even no greater than 1/20 of the thermal time constant. A feedback signal can be provided to the control system assist in achieving control.

Abstract translation: 气体传感器包括光源，与光源可操作地连接的电源和与光源和电源可操作地连接的控制系统。 控制系统适于控制从电源到光源的输入功率，使得控制频率的时间周期短于（i）红外光源，（ii） 传感器内的气体，或（iii）传感器的检测器。 控制频率的时间段可以例如不大于热时间常数的1/3，不大于热时间常数的1/10，或甚至不大于热时间常数的1/20 。 可以向控制系统提供反馈信号以帮助实现控制。

公开(公告)号：US07254503B2

公开(公告)日：2007-08-07

申请号：US10560440

申请日：2004-06-03

Applicant: Willis E. Howard, III

Inventor： Willis E. Howard, III

IPC: G01N21/55

CPC classification number: G01N21/8483 ,  B01L9/52 ,  B01L2300/0825 ,  G01J2003/2866 ,  G01N21/274 ,  G01N21/4738 ,  G01N21/78 ,  G01N2021/0325 ,  G01N2201/0245 ,  G01N2201/12792

Abstract: A wavelength correction function provides corrected reflectance values from actual reflectance values taken in a reflectance-base instrument. The correction is provided as a function of measured reflectance values and a predefined set of high resolution reflectance values established for the reflectance-based instrument implementing the wavelength correction function.

Abstract translation: 波长校正功能提供从反射率仪器中获取的实际反射率值的校正反射率值。 根据测量的反射率值和为实现波长校正功能的基于反射率的仪器建立的预定的一组高分辨率反射率值提供校正。

公开(公告)号：US20040247491A1

公开(公告)日：2004-12-09

申请号：US10821441

申请日：2004-04-09

Inventor： David A. Brock ,  Donald R. Hesser ,  Gary H. Krauth ,  Jack L. Zuidema ,  David L. Boger ,  Kevin J. Sheldrake

IPC: B01L003/00

CPC classification number: G01N21/8483 ,  B01L9/52 ,  B01L2300/0825 ,  G01J2003/2866 ,  G01N21/274 ,  G01N21/4738 ,  G01N21/78 ,  G01N2021/0325 ,  G01N2201/0245 ,  G01N2201/12792

Abstract: A tray assembly for use with an apparatus adapted to inspect a liquid sample, including a support tray insertable within an inspection location within the liquid sample inspection apparatus so that a light source of the apparatus illuminates a liquid sample carried on the support tray and a detector of the apparatus receives light from the liquid sample when the support tray is positioned at the inspection location, and an insert supported within the support tray and having a first surface adapted to receive a first type of liquid carrier and a second surface adapted to receive a second type of liquid carrier different from the first type of liquid carrier.

Abstract translation: 一种用于与适于检查液体样品的设备一起使用的托盘组件，包括可插入在液体样品检查设备内的检查位置内的支撑托盘，使得设备的光源照亮承载在支撑托盘上的液体样品和检测器 当所述支撑托盘位于所述检查位置时，所述设备从所述液体样品接收光，以及插入件，其被支撑在所述支撑托盘内并且具有适于接纳第一类型的液体载体的第一表面和适于接收 第二类液体载体不同于第一类液体载体。

公开(公告)号：US20030154044A1

公开(公告)日：2003-08-14

申请号：US10188972

申请日：2002-07-05

Inventor： Alan P. Lundstedt ,  Allen L. Hall ,  Ching-Hui Tseng

IPC: G06F015/00

CPC classification number: G01N21/274 ,  G01N21/359 ,  G01N35/00712 ,  G01N35/00871 ,  G01N2035/00881 ,  G01N2201/12753 ,  G01N2201/12792

Abstract: A method of analysis, analysis system, program product, apparatus, and method of supplying analysis of value incorporating the use of at least one data acquisition device, a central processor, and a communication link that is connectable between the data acquisition device and the central processor. The central processor is loaded with multivariate calibration models developed for predicting values for various properties of interest, wherein the calibration models are capable of compensating for variations in an effectively comprehensive set of measurement conditions and secondary material characteristics. As so configured, the calibration models can compensate for instrument variance without instrument-specific calibration transfer. Measurement results generated by the central processor can be transmitted to an output device of a user interface.

Abstract translation: 一种分析，分析系统，程序产品，装置和提供分析价值的方法，该方法包括使用至少一个数据采集设备，中央处理器和通信链路，该数据采集设备和数据采集设备与中央 处理器。 中央处理器装载有用于预测感兴趣的各种性质的值的多变量校准模型，其中校准模型能够补偿有效全面的测量条件和次要材料特性的变化。 如此配置，校准模型可以补偿仪器差异，无需仪器特定的校准传输。 由中央处理器生成的测量结果可以被发送到用户界面的输出设备。

公开(公告)号：US11860096B2

公开(公告)日：2024-01-02

申请号：US17324385

申请日：2021-05-19

Applicant: YSI, INC.

Inventor： Kevin Flanagan ,  Ronald Metzger ,  Kyle Loges

IPC: G01N21/53 ,  G01N21/64 ,  G01N33/08 ,  G01N21/47 ,  G01N21/82 ,  H04N25/46

CPC classification number: G01N21/6456 ,  G01N21/4785 ,  G01N21/532 ,  G01N21/64 ,  G01N21/82 ,  G01N33/08 ,  H04N25/46 ,  G01N2021/6473 ,  G01N2021/6491 ,  G01N2201/061 ,  G01N2201/0633 ,  G01N2201/0636 ,  G01N2201/126 ,  G01N2201/12761 ,  G01N2201/12792

Abstract: A turbidity sensor featuring a signal processor or processing module configured to: receive signaling containing information about light reflected off suspended matter in a liquid and sensed by a linear sensor array having rows and columns of optical elements; and determine corresponding signaling containing information about a concentration of turbidity of the liquid, based upon the signaling received.

公开(公告)号：US20110122411A1

公开(公告)日：2011-05-26

申请号：US12997489

申请日：2009-06-17

Applicant: Karoly Kunstar

Inventor： Karoly Kunstar

IPC: G01J3/46 ,  G01N21/55

CPC classification number: G01N21/4738 ,  G01N21/274 ,  G01N21/8483 ,  G01N2021/4709 ,  G01N2021/4735 ,  G01N2021/478 ,  G01N2021/8645 ,  G01N2201/0627 ,  G01N2201/12723 ,  G01N2201/12792

Abstract: The invention is an optical measuring unit (10) for carrying out a reflective measurement, the unit comprising a light source (11) suitable for illuminating a surface to be measured, a measuring sensor (12a, 12b) for detecting a light reflected by the surface to be measured, and a light blocking optical element (13) separating the measuring sensor (12a, 12b) from the direct light of the light source (11) and having an internal space that comprises a straight centreline light tube (14) extending from the light source (11) to the surface to be measured. The inner space of the light blocking optical element (13) comprises a shaded space (19) extending from the centreline of the light tube (14) farther than the light tube (14), in which a monitoring sensor (15) is arranged, said monitoring sensor (15) being subjected to a part of the direct light of the light source (11) and enabling compensation of a change of the light emission of the light source (11). On the other hand, the invention is a method for carrying out a reflective measurement by an optical measuring unit (10).

Abstract translation: 本发明是一种用于进行反射测量的光学测量单元（10），该单元包括适于照射待测表面的光源（11），用于检测被测光反射的光的测量传感器（12a，12b） 待测量的表面，以及将测量传感器（12a，12b）与光源（11）的直接光分开并具有包括直线中心线光管（14）的内部空间的遮光光学元件（13） 从光源（11）到要测量的表面。 遮光光学元件（13）的内部空间包括从光管（14）的中心线延伸的阴影空间（19），其比布置有监视传感器（15）的光管（14）更远， 所述监测传感器（15）经受光源（11）的直射光的一部分，并且能够补偿光源（11）的发光变化。 另一方面，本发明是通过光学测量单元（10）进行反射测量的方法。

公开(公告)号：US20110054864A1

公开(公告)日：2011-03-03

申请号：US12914866

申请日：2010-10-28

Applicant: ALAN P. LUNDSTEDT ,  ALLEN L. HALL ,  CHING-HUI TSENG

Inventor： ALAN P. LUNDSTEDT ,  ALLEN L. HALL ,  CHING-HUI TSENG

IPC: G06F17/10

CPC classification number: G01N21/274 ,  G01N21/359 ,  G01N35/00712 ,  G01N35/00871 ,  G01N2035/00881 ,  G01N2201/12753 ,  G01N2201/12792

Abstract: A method of analysis, analysis system, program product, apparatus, and method of supplying analysis of value incorporating the use of at least one data acquisition device, a central processor, and a communication link that is connectable between the data acquisition device and the central processor. The central processor is loaded with multivariate calibration models developed for predicting values for various properties of interest, wherein the calibration models are capable of compensating for variations in an effectively comprehensive set of measurement conditions and secondary material characteristics. As so configured, the calibration models can compensate for instrument variance without instrument-specific calibration transfer. Measurement results generated by the central processor can be transmitted to an output device of a user interface.

Abstract translation: 一种分析，分析系统，程序产品，装置和提供分析价值的方法，该方法包括使用至少一个数据采集设备，中央处理器和通信链路，该数据采集设备和数据采集设备与中央 处理器。 中央处理器装载有用于预测感兴趣的各种性质的值的多变量校准模型，其中校准模型能够补偿有效全面的测量条件和次要材料特性的变化。 如此配置，校准模型可以补偿仪器差异，无需仪器特定的校准传输。 由中央处理器生成的测量结果可以被发送到用户界面的输出设备。

公开(公告)号：US20090155921A1

公开(公告)日：2009-06-18

申请号：US12333219

申请日：2008-12-11

Applicant: Peter S. Lu ,  Joseph Byerly ,  Christopher Kepner ,  Thomas M. Sherlock ,  Michael P. Belmares ,  Johannes Schweizer

Inventor： Peter S. Lu ,  Joseph Byerly ,  Christopher Kepner ,  Thomas M. Sherlock ,  Michael P. Belmares ,  Johannes Schweizer

IPC: G01N21/75 ,  G01N21/00

CPC classification number: G01N21/8483 ,  G01N21/274 ,  G01N21/276 ,  G01N2201/12792

Abstract: The present invention provides a method and apparatus for reading test strips such as lateral flow test strips as used for the testing of various chemicals in humans and animals. A compact and portable device is provided that may be battery powered when used remotely from the laboratory and, may store test data until it can be downloaded to another database. Motive power during scanning of the test strip is by means of a spring and damper that is wound by the operator during the insertion of a test strip cassette holder prior to test.

Abstract translation: 本发明提供一种用于读取测试条的方法和装置，例如用于测试人和动物中的各种化学物质的横向流动测试条。 提供了一种紧凑型便携式设备，可在实验室远程使用电池供电，并可存储测试数据，直到可以下载到另一个数据库。 在测试条扫描期间的动力是借助于弹簧和阻尼器，其在测试之前插入测试条带盒座期间由操作者缠绕。