Apparatus and sensing devices for measuring fluorescence lifetimes of fluorescence sensors
    14.
    发明授权
    Apparatus and sensing devices for measuring fluorescence lifetimes of fluorescence sensors 失效
    用于测量荧光传感器荧光寿命的装置和感测装置

    公开(公告)号:US07289204B2

    公开(公告)日:2007-10-30

    申请号:US10476425

    申请日:2002-05-02

    Abstract: An apparatus and devices for measuring fluorescence lifetimes of fluorescence sensors for one or more analytes, the apparatus comprising (c) one or more reference systems (3,6,7), said reference systems each comprising one or more reference light sources (3) and being adapted to receive one or more excitation signals (1a), to produce reference optical signals (6b) in response thereto, and to produce one or more electrical reference output signals (7b) in response to one or more excitation signals (1a); and (d) or more phase detectors (10), said phase detections being adapted to detect one or more delays of said one or more electrical output signals of said one or more fluorescence sensor systems and said one or more reference systems, and to produce one or more phase output signals; and a method of measuring concentration of one or more analytes using such apparatus and/or devices.

    Abstract translation: 一种用于测量一种或多种分析物的荧光传感器的荧光寿命的装置和装置,所述装置包括(c)一个或多个参考系统(3,6,7),所述参考系统各自包括一个或多个参考光源(3) 并且适于接收一个或多个激励信号(1a)以响应于此产生参考光信号(6b),并响应于一个或多个激励信号产生一个或多个电参考输出信号(7b) (1 a); 和(d)或更多相位检测器(10),所述相位检测器适于检测所述一个或多个荧光传感器系统和所述一个或多个参考系统的所述一个或多个电输出信号的一个或多个延迟,并且产生 一个或多个相位输出信号; 以及使用这种装置和/或装置测量一种或多种分析物的浓度的方法。

    Modular fiber optic fluorometer and method of use thereof
    15.
    发明授权
    Modular fiber optic fluorometer and method of use thereof 失效
    模块化光纤荧光计及其使用方法

    公开(公告)号:US5994707A

    公开(公告)日:1999-11-30

    申请号:US819050

    申请日:1997-03-18

    Abstract: A low cost portable fiber optic fluorometer is packaged as a personal computer peripheral and is based on interchangeable modules. One embodiment of the fluorometer comprises an excitation source, a detector, a signal processor, frequency source, wavelength selector, and an optical interface. The optical interface is exclusively fiber optic-based, thereby simplifying optical alignment and reducing the cost of the fluorometer. In another embodiment, the excitation source is an inexpensive monochromatic excitation source. In this case, the monochromatic excitation source and the first wavelength selector are preferably removable and replaceable, so that the fluorometer is advantageously able to generate different excitation wavelengths and detect different emission wavelengths. A fluorescence measurement method comprises the steps of generating an excitation signal; transmitting the excitation signal to a system under study which, in response, generates an emission signal; and detecting both the excitation signal and the emission signal with the fluorometer, and then using the detected excitation signal as a reference signal to calibrate the fluorometer and to nullify distortion errors in the emission signal. The use of the excitation signal as a reference signal provides an advantageously simple way to calibrate the fluorometer and to nullify distortion errors in the emission signal. An alternative method allows the precise shapes of the emission signal and the excitation signal to be profiled. The fluorometry method and apparatus can both advantageously be used for performing both direct fluorescence lifetime measurements and for performing phase fluorometry.

    Abstract translation: 低成本便携式光纤荧光计作为个人计算机外围设备封装,并且基于可互换的模块。 荧光计的一个实施例包括激发源,检测器,信号处理器,频率源,波长选择器和光学接口。 光接口仅仅是基于光纤的,从而简化了光学对准并降低了荧光计的成本。 在另一个实施例中,激发源是便宜的单色激发源。 在这种情况下,单色激发源和第一波长选择器优选是可移除和可更换的,使得荧光计有利地能够产生不同的激发波长并检测不同的发射波长。 荧光测量方法包括产生激励信号的步骤; 将激励信号传输到被研究的系统,其响应地产生发射信号; 并用荧光计检测激发信号和发射信号,然后使用检测到的激发信号作为参考信号来校准荧光计,并消除发射信号中的失真误差。 使用激励信号作为参考信号提供校准荧光计并消除发射信号中的失真误差的有利的简单方式。 替代方法允许对发射信号和激励信号的精确形状进行轮廓分析。 荧光测定方法和装置可以有利地用于进行直接荧光寿命测量和用于进行相位荧光测定。

    Sensor for monitoring solute in a liquid stream
    16.
    发明授权
    Sensor for monitoring solute in a liquid stream 失效
    用于在液体流中监测溶质的传感器

    公开(公告)号:US5287168A

    公开(公告)日:1994-02-15

    申请号:US72668

    申请日:1993-06-07

    CPC classification number: G01N21/8507 G01N2201/086 G01N2201/0866

    Abstract: The sensor system monitors solutes in a liquid stream by analyzing the amount of light absorbed in a liquid in a particular wavelength band. The sensor system is arranged for selectability of the type of fiber used for transmission and adjustability of the liquid gap length in the liquid so that individual installations can be arranged with optimum characteristics for sensing particular chemical species in solution by absorption spectroscopy.

    Abstract translation: 传感器系统通过分析在特定波长带中的液体中吸收的光量来监测液体流中的溶质。 传感器系统被布置用于可选择性的用于传输的纤维类型和液体间隙长度在液体中的可调节性,使得各个装置可以布置成具有用于通过吸收光谱检测溶液中的特定化学物质的最佳特性。

    SENSOR POSITIONING DEVICE AND SENSOR
    18.
    发明公开

    公开(公告)号:US20240142384A1

    公开(公告)日:2024-05-02

    申请号:US18493952

    申请日:2023-10-25

    CPC classification number: G01N21/8507 G01N2201/086 G01N2201/088

    Abstract: A sensor positioning device, having a holding module, with a sensor receptacle, fastening element and spring element, the sensor receptacle being mounted movably relative to the fastening element along a compensating axis. The spring is arranged between the fastening element and the sensor receptacle to cooperate therewith, to create a restoring force during movement of the receptacle relative to the fastening element. A measurement connector with an abutment is configured for arrangement onto a process container, and is configured for releasable arrangement on the holding module. The sensor positioning device is configured such that, when the measurement connector is arranged on the holding module, the sensor receptacle is movable relative to the fastening element along the axis, and a pressing force of the sensor receptacle onto the abutment of the measurement connector is created by the spring. A sensor unit, for turbidity measurement, is provided having the sensor positioning device.

    MODULAR DEVICE FOR REMOTE CHEMICAL MATERIAL ANALYSIS
    19.
    发明申请
    MODULAR DEVICE FOR REMOTE CHEMICAL MATERIAL ANALYSIS 审中-公开
    用于远程化学材料分析的模块化设备

    公开(公告)号:US20160266043A1

    公开(公告)日:2016-09-15

    申请号:US14394445

    申请日:2014-09-01

    Abstract: A modular device for remote chemical material analysis with a basic function unit which is formed with a transport module, which is partly equipped with a mobile frame construction which is set up with at least a power supply of the laser, a detection system, designed for plasma radiation dispersion according to the wavelength and its record, a control and evaluation block in the form of PC and a control electronic block and partly is connected with a laser module which contains a laser head, which serves as a source of laser pulses, where the essence of the invention is that the laser module is equipped with a laser beam router of optional routing of laser pulses either into a stand-off module when analyzed with a “Stand-Off LIBS” method or into a fiber module when analyzed with a “Remote LIBS” method.

    Abstract translation: 一种用于远程化学物质分析的模块化装置,具有基本功能单元,该基本功能单元形成有传送模块,其部分地配备有至少设置有激光器的电源的移动框架结构,设计用于 根据波长及其记录的等离子体辐射色散,以PC和控制电子块的形式的控制和评估块,并且部分地与包含用作激光脉冲源的激光头的激光模块连接,其中激光头 本发明的实质是激光模块配备有激光束路由器,其可选地将激光脉冲路由到分立模块中,当用“Stand-off LIBS”方法分析时,或者当用 “远程LIBS”方法。

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