Pulse amplitude modulated chlorophyll fluorometer
    14.
    发明授权
    Pulse amplitude modulated chlorophyll fluorometer 有权
    脉冲调幅叶绿素荧光计

    公开(公告)号:US09222888B2

    公开(公告)日:2015-12-29

    申请号:US13438562

    申请日:2012-04-03

    CPC classification number: G01N21/6486 G01N21/6428 G01N2201/0625

    Abstract: Chlorophyll fluorometry may be used for detecting toxins in a sample because of changes in micro algae. A portable lab on a chip (“LOAC”) based chlorophyll fluorometer may be used for toxin detection and environmental monitoring. In particular, the system may include a microfluidic pulse amplitude modulated (“PAM”) chlorophyll fluorometer. The LOAC PAM chlorophyll fluorometer may analyze microalgae and cyanobacteria that grow naturally in source drinking water.

    Abstract translation: 由于微藻的变化,叶绿素荧光测定法可用于检测样品中的毒素。 基于芯片的便携式实验室(“LOAC”)叶绿素荧光计可用于毒素检测和环境监测。 特别地,该系统可以包括微流体脉冲幅度调制(“PAM”)叶绿素荧光计。 LOAC PAM叶绿素荧光计可以分析在源饮用水中自然生长的微藻和蓝细菌。

    UNIT AND METHOD FOR OPTICAL NON-CONTACT OIL DETECTION
    15.
    发明申请
    UNIT AND METHOD FOR OPTICAL NON-CONTACT OIL DETECTION 有权
    用于光学非接触油检测的单元和方法

    公开(公告)号:US20150293032A1

    公开(公告)日:2015-10-15

    申请号:US14441264

    申请日:2012-11-15

    Abstract: The invention relates to a unit and method for detection of presence of oil on the water surface or in the water column. Unit comprises a sensor, whereby the sensor is connected to electronic compartment followed by microprocessor controller with embedded software for carrying out necessary analyses of reflected signals received by the sensor. The microprocessor controller is connected to communication means for transmitting an alarm signal through external communication line in case of oil pollution. All elements mentioned above are supplied by external power supply and are accommodated into waterproof housing. The sensor comprises the probe light source formed by a pulsed UV LED, collimating optics and narrow band optical filter, at least one dichroic mirror, a projection-receiving lens, at least one optical filter, at least one photodetector and a reference photodetector.

    Abstract translation: 本发明涉及用于检测水面或水柱中油的存在的单元和方法。 单元包括传感器,由此传感器连接到电子舱,随后是具有嵌入式软件的微处理器控制器,用于对由传感器接收的反射信号进行必要的分析。 微处理器控制器连接到通信装置,用于在油污染的情况下通过外部通信线路发送报警信号。 上述所有元件都由外部电源供电,并被安装在防水​​外壳中。 传感器包括由脉冲UV LED,准直光学器件和窄带滤光器,至少一个分色镜,投影接收透镜,至少一个滤光器,至少一个光电检测器和参考光电检测器形成的探测光源。

    Optopairs with temperature compensable electroluminescence for use in optical gas absorption analyzers
    16.
    发明授权
    Optopairs with temperature compensable electroluminescence for use in optical gas absorption analyzers 有权
    具有温度可补偿电致发光的光学头罩用于光学气体吸收分析仪

    公开(公告)号:US08957376B1

    公开(公告)日:2015-02-17

    申请号:US14268360

    申请日:2014-05-02

    Abstract: Optopair for use in sensors and analyzers of gases such as methane, and a fabrication method therefor is disclosed. It comprises: a) an LED, either cascaded or not, having at least one radiation emitting area, whose spectral maximum is de-tuned from the maximum absorption spectrum line of the gas absorption spectral band; and b) a Photodetector, whose responsivity spectral maximum can be either de-tuned from, or alternatively completely correspond to the maximum absorption spectrum line of the absorption spectral band of the gas. Modeling the LED emission and Photodetector responsivity spectra and minimizing the temperature sensitivity of the optopair based on the technical requirements of the optopair signal registration circuitry, once the spectral characteristics of the LED and Photodetector materials and the temperature dependencies of said spectral characteristics are determined, provides the LED de-tuned emission and Photodetector responsivity target peaks respectively.

    Abstract translation: 公开了用于气体如甲烷的传感器和分析器的Optopair及其制造方法。 它包括:a)级联或不具有至少一个辐射发射区域的LED,其光谱最大值从气体吸收光谱带的最大吸收光谱线被去调谐; 和b)光检测器,其响应度谱最大值可以从气体的吸收光谱带的最大吸收光谱线解调或完全对应。 基于Optopair信号配准电路的技术要求,对LED发射和光电检测器响应谱进行建模,并最小化Optopair的温度敏感度,一旦确定了LED和光检测器材料的光谱特性和所述光谱特性的温度依赖性,就提供了 LED解调发光和光电探测器响应度目标峰值分别为。

    Rain sensor
    17.
    发明授权
    Rain sensor 有权
    雨传感器

    公开(公告)号:US08471513B2

    公开(公告)日:2013-06-25

    申请号:US12988428

    申请日:2009-04-03

    Applicant: Sea Yeoun Han

    Inventor: Sea Yeoun Han

    Abstract: During rain, including a light source (5) for radiating light such that the light is transmitted through a vehicle window (2), a light receiving element (6) for sensing an optical signal when the light radiated from the light source (5) is reflected from the raindrop fallen on the vehicle window (2) and performing a photoelectric transduction, and a receiver (9) for receiving the photoelectrically transduced signal from the light receiving element (6) and judging the level of rainfall. The light source (5) and the light receiving element (6) are inclined with respect to the surface of the vehicle window (2) such that the light of the light source (5) directly reflected from the vehicle window (2) exits to the outside of the light receiving element (6) and the light reflected from a raindrop (8) on the vehicle window (2) is received by the light receiving element (6) to operate a vehicle wiper.

    Abstract translation: 在下雨期间,包括用于照射光的光源(5),使得光通过车窗(2)传输;光接收元件(6),用于当从光源(5)辐射的光时感测光信号; 从落在车窗(2)上的雨滴反射并进行光电转换,以及用于从光接收元件(6)接收光电转换信号并判断降雨量的接收器(9)。 光源(5)和光接收元件(6)相对于车窗(2)的表面倾斜,使得从车窗(2)直接反射的光源(5)的光离开到 光接收元件(6)的外部和从车窗(2)上的雨滴(8)反射的光被光接收元件(6)接收以操作车辆刮水器。

    RAIN SENSOR
    18.
    发明申请
    RAIN SENSOR 有权
    雨量传感器

    公开(公告)号:US20110031921A1

    公开(公告)日:2011-02-10

    申请号:US12988428

    申请日:2009-04-03

    Applicant: Sea Yeoun Han

    Inventor: Sea Yeoun Han

    Abstract: During rain, including a light source (5) for radiating light such that the light is transmitted through a vehicle window (2), a light receiving element (6) for sensing an optical signal when the light radiated from the light source (5) is reflected from the raindrop fallen on the vehicle window (2) and performing a photoelectric transduction, and a receiver (9) for receiving the photoelectrically transduced signal from the light receiving element (6) and judging the level of rainfall. The light source (5) and the light receiving element (6) are inclined with respect to the surface of the vehicle window (2) such that the light of the light source (5) directly reflected from the vehicle window (2) exits to the outside of the light receiving element (6) and the light reflected from a raindrop (8) on the vehicle window (2) is received by the light receiving element (6) to operate a vehicle wiper.

    Abstract translation: 在下雨期间,包括用于照射光的光源(5),使得光通过车窗(2)传输;光接收元件(6),用于当从光源(5)辐射的光时感测光信号; 从落在车窗(2)上的雨滴反射并进行光电转换,以及用于从光接收元件(6)接收光电转换信号并判断降雨量的接收器(9)。 光源(5)和光接收元件(6)相对于车窗(2)的表面倾斜,使得从车窗(2)直接反射的光源(5)的光离开到 光接收元件(6)的外部和从车窗(2)上的雨滴(8)反射的光被光接收元件(6)接收,以操作车辆刮水器。

    Device and Method for Radiometric Measurement of a Plurality of Samples

    公开(公告)号:US20100324834A1

    公开(公告)日:2010-12-23

    申请号:US12675764

    申请日:2008-08-29

    CPC classification number: G01N21/6452 G01N2201/0625

    Abstract: The invention relates to an apparatus for radiometrically investigating a plurality of samples, with: a radiation device providing a plurality of radiation elements, a radiation element comprising at least one emitter element, wherein the radiation device preferably provides at least two emitter elements which provide radiation with different radiation spectra, wherein at least two of said emitter elements are adapted to emit radiation during time periods which at least partially overlap, and a control device, controlling said radiation elements, a sample holder member providing a plurality of sample positions for supporting a plurality of samples, wherein device and the sample holder member are preferably at least a part of the radiation adapted to be moved against each other during the investigation procedure and wherein at least one radiation element is adapted to irradiate a sample with radiation via a first optical path which causes the sample to emit sample radiation with at least one sample radiation frequency via a second optical path towards at least one detection device, said at least one detection device being adapted to detect the sample radiation of at least two samples as a sum signal during time periods which at least partially overlap; and an evaluation device which is adapted to evaluate the sample radiation of at least one individual sample from said sum signal. The invention relates further to a method for photometrically investigating sample radiations of at least one sample, which are caused by the radiation of N emitter elements of at least one radiation element wherein said N emitter elements are emitting radiation during time periods which at least partially overlap, to detect the sample radiation of at least two samples as a sum signal during time periods which at least partially overlap and to evaluate the sample radiation of at least one individual sample from said sum signal.

    Sensor assembly and method for measuring nitrogen dioxide
    20.
    发明授权
    Sensor assembly and method for measuring nitrogen dioxide 有权
    传感器组件和二氧化氮测量方法

    公开(公告)号:US06791689B1

    公开(公告)日:2004-09-14

    申请号:US09676107

    申请日:2000-09-29

    Abstract: A sensing apparatus and method for use in the optical absorption analysis of the NO2 content of a gas sample. The apparatus and method employ radiation from a semiconductor radiation source. The emission spectrum of the radiation has a maximum wavelength of about 600 nm, preferably 380-520 nm. The radiation is passed through the gas sample and sensed by a detector to provide an output signal indicative of the NO2 content of the gas sample. A pair of alternately energized radiation sources may also be used. The sensor apparatus and method may be employed in conjunction with other gas sensing apparatus and methods, such as IR CO2 measurement or NO sensing.

    Abstract translation: 一种用于气体样品的NO 2含量的光吸收分析中的感测装置和方法。 该装置和方法采用来自半导体辐射源的辐射。 辐射的发射光谱具有约600nm的最大波长,优选380-520nm。 辐射通过气体样品并由检测器感测,以提供指示气体样品的NO 2含量的输出信号。 也可以使用一对交替供电的辐射源。 传感器装置和方法可以与其他气体感测装置和方法结合使用,例如IR CO2测量或NO感测。

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