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    • 2. 发明授权
    • Fluorescence detector geometry
    • 荧光检测器几何
    • US07251026B2
    • 2007-07-31
    • US10650213
    • 2003-08-28
    • Anthony C. Gilby
    • Anthony C. Gilby
    • G01N1/10
    • G01N21/0303G01J3/02G01J3/0208G01J3/18G01J3/4406G01N21/031G01N21/05G01N21/645G01N30/74G01N2021/0314G01N2021/0346G01N2021/6482
    • Excitation light of a selected wavelength from an excitation monochromator is directed along the long axis of a flow cell containing the sample to be analyzed, generating fluorescence. An emission monochromator is positioned at right angles to the plane of the excitation monochromator and receives the fluorescence from the flow cell utilizing optical components positioned such that the entrance slit of the emission monochromator is aligned with the long axis of the emission window. The intensity of the output from the flow cell is further maximized by positioning a retro-reflecting mirror at the end of the flow channel to effectively double the path-length of the excitation beam, and a reflecting surface on the side of the cell opposite the emission window to increase the collection efficiency and thereby increase the sensitivity of the detector.
    • 来自激发单色仪的所选波长的激发光沿着包含待分析样品的流动池的长轴被引导,产生荧光。 发射单色仪被定位成与激发单色仪的平面成直角,并且利用定位成使得发射单色仪的入射狭缝与发射窗的长轴对准的来自流动池的荧光接收。 通过在流动通道的端部定位回射反射镜以有效地使激励光束的路径长度倍增,并且与单元的相反侧的反射表面相反,来自流动池的输出的强度进一步最大化 发射窗口,以提高收集效率,从而提高检测器的灵敏度。
    • 3. 发明授权
    • Capillary chromatography detector apparatus
    • US5900934A
    • 1999-05-04
    • US947455
    • 1997-10-06
    • Anthony C. GilbyWilliam W. Carson
    • Anthony C. GilbyWilliam W. Carson
    • G01N27/447G01N30/46G01N30/74G01N21/01
    • G01N27/44721G01N27/44782G01N30/74
    • An apparatus to effect multiple simultaneous separations to measure absorbance, comprising a photodetector array comprising a plurality of photosensitive elements connected to provide a serial output. The elements are typically pixels of a photodiode array (PDA). The elements are illuminated by a light source positioned to illuminate at least a portion of the photodetector array. The light source may be a an AC or DC mercury lamp or other useable light source for chromatography. An array of separation channels is disposed between the light source and the photodetector array, each of the separation channels having a lumen, a sample introduction end and a detection region disposed opposite the sample introduction end. Typically and as disclosed herein the array is a multiple parallel capillary electrophoresis system. The last element is a mask element having at least one aperture for each associated separation channel, each aperture corresponding to its associated separation channel thereby selectively permitting light from the light source to pass through the lumen of its associated separation channel, at least a portion of the light passing through the lumen of the associated separation channel falling on a respective photosensitive element of the photodetector array to effect measurement of absorption of light by a sample introduced into the sample introduction end of the associated separation channel. Also disclosed is an instrument for analyzing the spectral content of chemical samples contained in a large number of capillary tubes which uses a single AC powered light source (which therefore gives a time-varying light output) and a single self-scanned PDA detector. This greatly reduces the number of circuit elements required, since only one amplifier, one A/D converter, one light source and one detector need be provided. The resulting device can be constructed less expensively and take up less space as compared to the conventional system. Further, a control signal having a particular frequency is supplied to both the power supply of the AC light source and the PDA detector. This stabilizes the detector signal's baseline.
    • 5. 发明授权
    • Aligning optical and mechanical elements for optical motion sensing
    • 对准用于光学运动感测的光学和机械元件
    • US4831252A
    • 1989-05-16
    • US149787
    • 1988-01-29
    • Dale E. IhnatAnthony C. GilbyRichard A. Anderson
    • Dale E. IhnatAnthony C. GilbyRichard A. Anderson
    • G01D5/26
    • G01D5/268Y10S430/146
    • A technique is disclosed for achieving critical alignment of optical and mechanical elements, in which one of the foregoing is movable with respect to the other. Specifically, an optical fiber (12) is aligned with respect to a movable member (19) in a first position. The movable member is then displaced to a second position and high levels of radiant energy at a first discernible wavelength are transmitted down the fiber optic path to alter, or pattern, a wavelength sensitive surface area or coating (16) on the surface of the movable member. The movable member is then freed, and radiant energy of a second wavelength to which the coating is insensitive is used to sense the position of the movable member with respect to the fiber optic.
    • 公开了一种用于实现光学和机械元件的临界对准的技术,其中上述之一可相对于另一个移动。 具体而言,光纤(12)在第一位置相对于可动部件(19)对准。 然后可移动构件移动到第二位置,并且在第一可识别波长处的高水平的辐射能量向下传送到光纤路径,以改变或图案化可移动的表面上的波长敏感表面积或涂层(16) 会员。 然后可移动部件被释放,并且使用涂层不敏感的第二波长的辐射能来感测可移动部件相对于光纤的位置。
    • 6. 发明授权
    • Optical measurement system with light-driven vibrating sensor element
    • 具有光驱振动传感器元件的光学测量系统
    • US4521684A
    • 1985-06-04
    • US350687
    • 1982-02-22
    • Anthony C. GilbyEdward L. LewisEverett O. Olsen
    • Anthony C. GilbyEdward L. LewisEverett O. Olsen
    • G01H9/00G01H13/00G01L1/08G01L1/10G02B5/14
    • G01L1/103G01L1/08
    • An instrumentation system for use in measuring and processing industrial process variables, such as flow, pressure, or temperature, includes a resonant element sensor whose resonant frequency varies in accordance with changes in the desired process variable communicating through an optical fiber link to a distant control room. The sensor is activated into resonant physical motion by light energy from a source in the control room, while the motion of the wire is sensed optically and retransmitted to the control room to produce an output signal whose frequency is equal to that of the resonating element. A feedback network maintains the sensor in resonance by synchronizing the delivery of light energy to the motion of the resonant element. The powering and sensing aspect may be performed by individual fiber optic cables or alternatively this function may be combined by utilizing a single fiber optic strand.
    • 用于测量和处理诸如流量,压力或温度的工业过程变量的仪表系统包括谐振元件传感器,其谐振频率根据通过光纤链路传输到远程控制器的期望过程变量的变化而变化 房间。 传感器通过来自控制室中的源的光能被激活成共振的物理运动,同时光线的运动被光学地感测并重新发送到控制室,以产生频率等于谐振元件的输出信号。 反馈网络通过将光能的传递与谐振元件的运动同步来使传感器保持谐振。 功率和感测方面可以由单独的光纤电缆执行,或者该功能可以通过利用单个光纤线组合。