Optical spectral reflectance sensor and controller
    63.
    发明授权
    Optical spectral reflectance sensor and controller 有权
    光谱反射率传感器和控制器

    公开(公告)号:US06855933B2

    公开(公告)日:2005-02-15

    申请号:US10606563

    申请日:2003-06-26

    Abstract: A spectral reflectance sensor including: a light source for emitting a modulated beam of red light; a light source for emitting a modulated beam of near infrared light; a receiver for receiving reflected light produced by either the red source or the near infrared source; a receiver for receiving incident light from either the red source or the infrared source; a signal conditioner responsive to the modulation such that the signals produced by the receivers in response to reflected and incident light from the source can be discriminated from signals produced by ambient light; and a microprocessor having an input such that the microprocessor can determine the intensities of incident red light, reflected red light; incident near infrared light; and reflected near infrared light. From these intensities, and by knowing the growing days since emergence or planting, the sensor can calculate the mid-growing season nitrogen fertilizer requirements of a plant.

    Abstract translation: 一种光谱反射传感器,包括:用于发射调制的红光束的光源; 用于发射近红外光的调制束的光源; 用于接收由红色源或近红外光源产生的反射光的接收器; 用于从红色源或红外源接收入射光的接收器; 响应于调制的信号调节器,使得响应于来自源的反射和入射光的接收器产生的信号可以与由环境光产生的信号区分开; 以及具有输入的微处理器,使得微处理器可以确定入射的红光,反射红光的强度; 事件近红外光; 并反射近红外光。 通过这些强度,通过了解自出苗或种植以来日益增长的日子,传感器可以计算出一个植物的中期生长季节氮肥需求。

    Multiple wavelength spectrometer
    64.
    发明申请
    Multiple wavelength spectrometer 失效
    多波长光谱仪

    公开(公告)号:US20040218187A1

    公开(公告)日:2004-11-04

    申请号:US10748397

    申请日:2003-12-30

    Inventor: Barrett E. Cole

    Abstract: Multiple wavelength spectrometers can be tuned to particular wavelengths. A dual wavelength spectrometer can include a spectrometer configured to detect at least some wavelengths that fall within the ultraviolet (UV) spectrum and a spectrometer configured to detect at least some wavelengths that fall within the visible spectrum. In some embodiments, a UV light spectrometer and a visible light spectrometer are disposed adjacent one another on a single substrate. A dual wavelength spectrometer can be used for analyzing bioaerosols, as well as for numerous other applications.

    Abstract translation: 多波长光谱仪可以调谐到特定波长。 双波长光谱仪可以包括配置成检测落入紫外(UV)光谱内的至少一些波长的光谱仪,以及被配置为检测落在可见光谱内的至少一些波长的光谱仪。 在一些实施例中,UV光谱仪和可见光光谱仪彼此相邻地设置在单个基板上。 双波长光谱仪可用于分析生物溶胶,以及许多其他应用。

    Measuring apparatus for measuring an optical property of a fluorescent
sample
    66.
    发明授权
    Measuring apparatus for measuring an optical property of a fluorescent sample 失效
    用于测量荧光样品的光学性质的测量装置

    公开(公告)号:US5636015A

    公开(公告)日:1997-06-03

    申请号:US648335

    申请日:1996-05-15

    Abstract: The measuring apparatus of the present invention measures the optical properties of a sample containing a fluorescent material by irradiating the sample with light containing a UV component. In the present invention are provided a first light source for irradiating the sample with light containing a UV component, a second light source for irradiating the sample with light which does not contain a UV component, light receiving element for receiving light reflected from the sample irradiated by said light sources, and output means for generating weighting coefficients for weighting the output of the light receiving element during emission by each light source. The optical properties of the sample is calculated based on the output of the light receiving element for a first light source, output of the light receiving element for a second light source, and the respective weighting coefficients. Accordingly, measurement values can be obtained which are equal to values when measurement is accomplished with a standard light source.

    Abstract translation: 本发明的测量装置通过用含有UV成分的光照射样品来测量含有荧光材料的样品的光学性质。 在本发明中提供了一种用于对含有UV成分的光照射样品的第一光源,用于用不含UV成分的光照射样品的第二光源,用于接收从所照射的样品反射的光的光接收元件 以及用于产生加权系数的输出装置,用于在由每个光源发射期间加权光接收元件的输出。 基于用于第一光源的光接收元件的输出,用于第二光源的光接收元件的输出和各个加权系数来计算样品的光学性质。 因此,可以获得与使用标准光源进行测量时的值相等的测量值。

    Monochromator for simultaneous selection and utilization of two
wave-lengths
    68.
    发明授权
    Monochromator for simultaneous selection and utilization of two wave-lengths 失效
    用于同时选择和利用两个波长的单色器

    公开(公告)号:US4140399A

    公开(公告)日:1979-02-20

    申请号:US765395

    申请日:1977-02-03

    CPC classification number: G01J3/427

    Abstract: A monochromator for the simultaneous selection and utilization of two wavelengths of small and constant band width, whereby the wavelengths may be selected and rapidly changed as desired. The monochromator is particularly suitable for the simultaneous scanning of a chromatogram (e.g. a thin-layer chromatogram) with two wavelengths to determine the concentration of a certain material independently of disturbing influences of the matrix. This is done by photosensors which are adapted to be led on pivot arms on a circular arc about the element dispersing the light.

    Abstract translation: 用于同时选择和利用小的和恒定带宽的两个波长的单色仪,由此可以根据需要选择并快速地改变波长。 单色仪特别适用于同时扫描具有两个波长的色谱图(例如薄层色谱图),以独立于基质的干扰影响来确定某些材料的浓度。 这是通过适用于围绕分散光的元件的圆弧上的枢转臂上引导的光传感器完成的。

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