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    • 42. 发明授权
    • Electrically heated transfer line for capillary tubing
    • 毛细管用电加热输送线
    • US4650964A
    • 1987-03-17
    • US581923
    • 1984-02-21
    • Kent D. Vincent
    • Kent D. Vincent
    • B01D15/08G01N15/08G01N30/30G01N30/84G01N30/86G01N30/88H05B3/40F24H1/10
    • G01N30/30G01N2030/3061G01N2030/8435G01N2030/8804G01N30/8631
    • A heated transfer line for heating a small glass capillary tube is disclosed. The transfer line is small and removable yet highly efficient, capable of uniformly heating a glass capillary tube over a 5-inch length to more than 400.degree. C. with less than 30 watts of power. The power is applied to an electrically conductive heater tube, which encircles the glass capillary, via first and second current conductors attached to respective ends of the heater tube. The first and second current conductors are arranged in proximity to the heater tube and back along the heater tube to a common point without touching each other. Electrical insulation is disposed between the heater tube and the first and second current conductors to electrically isolate the heater tube from the current conductors. A cover of thermal insulation is disposed over the heater tube and the current conductors and is used to thermally isolate the heater tube. An outer tube is disposed around the thermal insulation as a cover. A mounting ferrule is connected to the outer tube at the common point for mechanically mounting the transfer line and for providing an exit for the first and second current conductors.
    • 公开了一种用于加热小玻璃毛细管的加热输送管线。 输送管线小而可拆卸,高效,能够将玻璃毛细管均匀地加热至超过400°C,超过400°C,功率小于30瓦。 通过连接到加热器管的相应末端的第一和第二电流导体将功率施加到环绕玻璃毛细管的导电加热器管上。 第一和第二电流导体被布置在靠近加热器管并且沿加热器管回到公共点而不彼此接触。 电绝缘设置在加热器管和第一和第二电流导体之间,以将加热器管与电流导体电隔离。 隔热罩设置在加热管和电流导体之上,用于隔热加热管。 外管围绕绝热体设置为盖。 安装套圈在公共点处连接到外管,用于机械地安装传输线并为第一和第二电流导体提供出口。
    • 45. 发明授权
    • Variable wavelength light filter and sensor system
    • 可变波长光滤波器和传感器系统
    • US5144498A
    • 1992-09-01
    • US480172
    • 1990-02-14
    • Kent D. Vincent
    • Kent D. Vincent
    • G01J1/04G01J3/12G01J3/26G01J3/28G01J3/51G02B5/28
    • G01J3/51G01J3/12G01J3/26G01J3/2803G02B5/284G01J2003/1226G01J3/513
    • Light filter apparatus for receiving a light beam having wavelengths in a selected band and for dispersing the light into a plurality of rays, with each ray having a different wavelength for which the intensity peaks. The peak wavelength varies approximately continuously with displacement of spatial position in a chosen direction along the filter's light-receiving plane. In one embodiment, the filter is a modified etalon structure having at least two reflecting surfaces whose separation distance is not constant but increases or decreases monotonically with distance in a chosen direction in a light-receiving plane of the etalon. Each of these two reflecting surfaces may be planar or non-planar but continuous, or may have a step or staircase configuration. This structure may operate using transmitted light or reflected light. In a second embodiment, an edge filter combination is used to produce a narrow band of transmitted or reflected light having a variable central wavelength that varies with position along the chosen direction. In a third embodiment, a multi-layer thin film structure is used to provide a narrow band of transmitted or reflected light having a variable central wavelength. The filter may be combined with a one-dimensional or two-dimensional array of photosensor elements, which array may be linear, circular or generally curvilinear, one such element receiving a group of adjacent light rays of similar peak wavelength, to provide a plurality of different wavelength readings on an incident light beam for spectrophotometry or colorimetry analysis.