-
公开(公告)号:US5243409A
公开(公告)日:1993-09-07
申请号:US730944
申请日:1991-08-28
申请人: Max Sagner
发明人: Max Sagner
CPC分类号: G01N21/8507 , C12M41/36 , G01N2021/152 , G01N2201/08 , G01N2201/1285
摘要: A device for measuring in situ, the optical density of a sample in a medium, in which the immersed sample has a main part with a slot at one end. A mobile part can be lodged in this slot. This mobile part has an open chamber which moves with the mobile part into the slot. This open chamber will contain a sample and will be aligned with an optical device in the housing, when moved into the slot. The mobile part and open chamber are, therefore, movable between an open position in which the medium to be studied circulates in the chamber, to a closed position when the mobile part is lodged in the slot whereat the open chamber is isolated from the medium to be studied. Measurement is carried out while the device is in the closed position by measuring the optical density of the isolated medium.
摘要翻译: PCT No.PCT / FR90 / 00072 Sec。 371日期1991年8月28日 102(e)日期1991年8月28日PCT 1990年1月30日PCT PCT。 出版物WO90 / 08818 日期1990年8月9日。一种用于原位测量介质中样品的光密度的装置,其中浸没的样品具有在一端具有狭槽的主要部分。 移动部件可以放在这个插槽中。 该移动部件具有开放室,其随着移动部件移动到槽中。 这个开放的室将包含样品,并且当移入槽中时将与外壳中的光学装置对准。 因此,可移动部分和开放室在可移动部件被放置在开口腔室与介质隔离开的狭槽中的位置之间可移动到打开位置,待打开的介质在腔室中循环的打开位置到关闭位置 被研究。 通过测量隔离介质的光密度,在器件处于关闭位置时进行测量。
-
公开(公告)号:US20110013182A1
公开(公告)日:2011-01-20
申请号:US12866272
申请日:2009-02-12
申请人: Keith Hulme , John Hammond
发明人: Keith Hulme , John Hammond
IPC分类号: G01N21/01
CPC分类号: G01N21/8507 , G01N21/0303 , G01N21/278 , G01N2021/8521 , G01N2201/1285
摘要: Reference cell (8) for use with a fibre optic probe (1) comprising a base wall (11), upstanding walls (12) each having an optical window (13, 15), and a top wall (14) having a further optical window (16) adapted to allow light to pass to and from a fibre optic probe. The base wall (11) comprises a reflector (19) which reflects incident light from the fibre optic probe back to said probe (1). The top wall (14) has an attachment for receiving an emitting and a receiving end of a fibre optic probe (1). The cell (8) allows use of standard fibre optic probe (1) with other optical equipment when the path length and the probe optical characteristics require validation to international standards. The calibration of the probe (1) is analogous to calibration of laboratory spectrophotometers and can therefore be validated. The device (8) enables probes (1) to be used for applications where precision and accuracy are essential.
摘要翻译: 用于与光纤探针(1)一起使用的参考单元(8)包括基壁(11),每个都具有光学窗口(13,15)的直立壁(12)和具有另外的光学 窗口(16),其适于允许光通过光纤探头和从光纤探头传出。 底壁(11)包括反射器(19),其将来自光纤探头的入射光反射回所述探头(1)。 顶壁(14)具有用于接收光纤探针(1)的发射和接收端的附件。 当路径长度和探头光学特性要求验证符合国际标准时,电池(8)允许使用标准光纤探针(1)与其他光学设备。 探头(1)的校准类似于实验室分光光度计的校准,因此可以被验证。 设备(8)使得探头(1)能够用于精度和精度必不可少的应用。
-
公开(公告)号:US20050168737A1
公开(公告)日:2005-08-04
申请号:US10768644
申请日:2004-01-30
申请人: John Bradshaw , Richard Curtis
发明人: John Bradshaw , Richard Curtis
CPC分类号: G01N21/274 , G01N21/278 , G01N21/31 , G01N2021/054 , G01N2201/127 , G01N2201/1285 , G01N2201/1286
摘要: An apparatus and related method for optical calibration of spectrophotometers is described. The apparatus is a calibration plate including one or more cuvettes filled with solutions of interest. The cuvettes are sealed to prevent evaporation. The cuvettes also possess a compressible component to allow for expansion of the solution and a bubble control apparatus to ensure that the compressible component does not intersect the beam path. A piece of neutral density glass is optionally included in the apparatus to track optical changes of the solutions over time.
摘要翻译: 描述了用于分光光度计的光学校准的装置和相关方法。 该装置是包括一个或多个充满感兴趣的溶液的比色杯的校准板。 试管被密封以防止蒸发。 试管还具有允许溶液膨胀的可压缩部件和气泡控制装置,以确保可压缩部件不与光束路径相交。 装置中可选地包括一片中性密度玻璃,以跟踪溶液随时间的光学变化。
-
4.
公开(公告)号:US20070077173A1
公开(公告)日:2007-04-05
申请号:US11541555
申请日:2006-10-03
申请人: Francois Melet
发明人: Francois Melet
IPC分类号: G01N35/00
CPC分类号: G01N21/253 , G01N21/274 , G01N21/31 , G01N35/00069 , G01N35/025 , G01N2021/3133 , G01N2021/3166 , G01N2021/3177 , G01N2201/0415 , G01N2201/06186 , G01N2201/12792 , G01N2201/1285
摘要: A compact analyzer for dry biochemical analysis of blood samples, integrating onto a common chassis (11): a measuring chamber (20) adapted to receive a disposable rotor (13) including microtanks (13A, 13B) containing dry reagents, a digital dilution module (21) of fixed or variable ratio defined as a function of the species of the sample to be analyzed, a sample centrifuging module (12) adapted, inside the measuring chamber, to centrifuge the rotor and position it angularly, an optical module adapted to apply beams of light to microtanks of the rotor, this optical module including a flash-lamp type light source (14) and a reference light sensor (16), an electronic processing and control system (23, 24, 25) including an external memory reader (26) adapted to read a portable external memory (27) containing at least information characteristic of at least the disposable rotor in use.
摘要翻译: 一种用于血液样品的干生物化学分析的紧凑型分析仪,集成到公共底盘(11)上:测量室(20),其适于容纳包含含有干试剂的微量池(13A,13B)的一次性转子(13),数字 固定或可变比率的稀释模块(21),其定义为待分析样品的种类的函数;样品离心模块(12),其适于在所述测量室内部离心转子并将其定位,光学模块 该光学模块包括闪光灯型光源(14)和参考光传感器(16),电子处理和控制系统(23,24,25)包括: 外部存储器读取器(26)适于读取至少包含使用中的一次性转子的信息特征的便携式外部存储器(27)。
-
5.
公开(公告)号:US5040889A
公开(公告)日:1991-08-20
申请号:US868700
申请日:1986-05-30
申请人: Thomas J. Keane
发明人: Thomas J. Keane
CPC分类号: G01J3/02 , G01J3/0218 , G01J3/42 , G01N21/474 , G01J2003/2866 , G01J2003/425 , G01J3/10 , G01J3/2803 , G01N2021/4742 , G01N2021/4745 , G01N2201/0231 , G01N2201/1285
摘要: In an optical instrument, a fiber optic probe is provided to irradiate a sample with visible NIR and ultraviolet light. Glass fibers carry the visible and NIR light to the probe from a visible and NIR light source and quartz fibers carry ultraviolet light to the probe from an ultraviolet source. Glass fibers carry visible and NIR light emanating from the sample to a spectrometer having a fixed grating and an array of photodetectors to receive the spectrum dispersed by the grating within the spectrometer housing. Amplifiers are also contained in the spectrometer housing severally connected to the photodetectors to amplify the output signals of the photodetectors. The probe is provided with a standard white sample pivotal into position to receive the light from the visible light source. A computer is programmed to provide automatic calibrating whenever the temperature within the housing changes more than a predetermined small amount. The automatic calibration is carried out by pivoting the white standard into position and computing calibration values from the resulting photodector outputs. Automatic calibration is also provided when the ratio of output signals from selected ones of the photodetectors changes by more than a predetermined small percentage.
摘要翻译: 在光学仪器中,提供光纤探针以用可见的NIR和紫外光照射样品。 玻璃纤维从可见光和近红外光源中携带可见光和近红外光,探针从石英纤维向紫外线传递紫外光。 玻璃纤维携带从样品发射到具有固定光栅和光电检测器阵列的光谱仪的可见光和近红外光,以接收由光谱仪外壳内的光栅分散的光谱。 放大器也包含在与光电检测器分开连接的光谱仪外壳中,以放大光电检测器的输出信号。 探头上设置有一个标准的白色样品,可以枢转到位置,以接收来自可见光源的光。 每当外壳内的温度变化超过预定的小量时,计算机被编程为提供自动校准。 通过将白色标准转换到位置并从所得到的光电检测器输出计算校准值来进行自动校准。 当选定的光电检测器的输出信号的比率变化超过预定的小百分比时,也提供自动校准。
-
公开(公告)号:US08687184B2
公开(公告)日:2014-04-01
申请号:US12866272
申请日:2009-02-12
申请人: Keith Hulme , John Hammond
发明人: Keith Hulme , John Hammond
CPC分类号: G01N21/8507 , G01N21/0303 , G01N21/278 , G01N2021/8521 , G01N2201/1285
摘要: Reference cell (8) for use with a fiber optic probe (1) comprising a base wall (11), upstanding walls (12) each having an optical window (13, 15), and a top wall (14) having a further optical window (16) adapted to allow light to pass to and from a fiber optic probe. The base wall (11) comprises a reflector (19) which reflects incident light from the fiber optic probe back to said probe (1). The top wall (14) has an attachment for receiving an emitting and a receiving end of a fiber optic probe (1). The cell (8) allows use of standard fiber optic probe (1) with other optical equipment when the path length and the probe optical characteristics require validation to international standards. The calibration of the probe (1) is analogous to calibration of laboratory spectrophotometers and can therefore be validated. The device (8) enables probes (1) to be used for applications where precision and accuracy are essential.
摘要翻译: 用于与光纤探针(1)一起使用的参考单元(8)包括基壁(11),每个都具有光学窗口(13,15)的直立壁(12)和具有另外的光学 窗口(16),其适于允许光通过光纤探头和从光纤探头传出。 底壁(11)包括反射器(19),其将来自光纤探头的入射光反射回所述探头(1)。 顶壁(14)具有用于接收光纤探针(1)的发射和接收端的附件。 当路径长度和探头光学特性要求验证符合国际标准时,电池(8)允许使用标准光纤探针(1)与其他光学设备。 探头(1)的校准类似于实验室分光光度计的校准,因此可以被验证。 设备(8)使得探头(1)能够用于精度和精度必不可少的应用。
-
公开(公告)号:US5003175A
公开(公告)日:1991-03-26
申请号:US359510
申请日:1989-06-01
CPC分类号: G01N21/37 , G01N21/61 , G01N2201/127 , G01N2201/1285
摘要: The photometer is calibrated by using a permanently built-in installation of four, similarly configured chambers in a good heat conducting carrier which is slidably interposed between sample and reference chambers on one hand and the detection structure on the other hand. One pair of these chambers is placed in the paths during measurement and is filled with inert gas, the other pair has one chamber filled with calibration gas, the other one with inert gas. All chambers are closed with similar windows.
摘要翻译: 通过使用永久内置的四个相同配置的室,在一个良好的导热载体中,一方面可滑动地插入在样品室和参考室之间以及另一方面检测结构来校准光度计。 一对这些室在测量期间放置在路径中,并且填充有惰性气体,另一对具有填充有校准气体的一个室,另一个室具有惰性气体。 所有的房间都有类似的窗户关闭。
-
公开(公告)号:US4794258A
公开(公告)日:1988-12-27
申请号:US65996
申请日:1987-06-24
IPC分类号: G01N21/27 , G01J3/42 , G01N21/03 , G01N21/25 , G01N21/31 , G01N21/33 , G01N21/53 , G01N21/85 , G01N21/35
CPC分类号: G01N21/255 , G01J3/42 , G01N2021/0314 , G01N2021/536 , G01N2021/8578 , G01N21/31 , G01N21/33 , G01N2201/0696 , G01N2201/1285
摘要: A spectroanalytical gas measuring apparatus has a radiation source (36), a transmitting condensor (19), an objective (13) and a beam divider (11) which deflects at least a part of the radiation reflected back to the apparatus by a reflector (40) to a polychromator or spectrometer (32). The transmitted radiation falls after the beam divider (11) onto a deflecting mirror (12) which is adjustable between two positions and which directs the light to an objective reflector (13). The objective reflector (13) reflects the radiation to a follow-up mirror (15) arranged opposite to the beam passage opening (14). At least one long and one short focal length objective reflector (13) are provided in order to ensure different ranges of distance in conjunction with the adjustable deflecting mirror (12).
摘要翻译: 光谱分析气体测量装置具有辐射源(36),透射冷凝器(19),物镜(13)和光束分割器(11),其将反射回的装置的至少一部分辐射偏转 40)到多色分光器或光谱仪(32)。 所发射的辐射在分束器(11)之后落在偏转镜(12)上,偏转镜(12)可在两个位置之间调节,并将光引导到物镜反射器(13)。 物镜(13)将辐射反射到与光束通道开口(14)相对设置的后续反射镜(15)。 提供至少一个长焦距和短焦距物镜反射器(13),以便确保与可调偏转镜(12)的不同距离范围。
-
公开(公告)号:US07061608B2
公开(公告)日:2006-06-13
申请号:US10768644
申请日:2004-01-30
CPC分类号: G01N21/274 , G01N21/278 , G01N21/31 , G01N2021/054 , G01N2201/127 , G01N2201/1285 , G01N2201/1286
摘要: An apparatus and related method for optical calibration of spectrophotometers is described. The apparatus is a calibration plate including one or more cuvettes filled with solutions of interest. The cuvettes are sealed to prevent evaporation. The cuvettes also possess a compressible component to allow for expansion of the solution and a bubble control apparatus to ensure that the compressible component does not intersect the beam path. A piece of neutral density glass is optionally included in the apparatus to track optical changes of the solutions over time.
摘要翻译: 描述了用于分光光度计的光学校准的装置和相关方法。 该装置是包括一个或多个充满感兴趣的溶液的比色杯的校准板。 试管被密封以防止蒸发。 试管还具有允许溶液膨胀的可压缩部件和气泡控制装置,以确保可压缩部件不与光束路径相交。 装置中可选地包括一片中性密度玻璃,以跟踪溶液随时间的光学变化。
-
公开(公告)号:US5184017A
公开(公告)日:1993-02-02
申请号:US746939
申请日:1991-08-19
CPC分类号: G01N21/3504 , G01N21/274 , G01N2021/3129 , G01N2021/3174 , G01N2201/1285
摘要: A non-dispersive infrared gas analyzer especially adapted for measuring the concentrations of HC, CO and CO.sub.2 in a vehicle exhaust includes a sample chamber for holding a sample gas, a radiation emitter for directing a beam through the chamber and a detector for indicating the amount of radiation absorbed. A plurality of filters each of which transmit radiation at an absorption band of a gas component to be detected are alternatingly positioned in the radiation path to produce a time-multiplexed signal having concentration information for all gases. The time-multiplexed detector output is corrected for gain and offset errors "on-the-fly", without requiring demultiplexing, through the use of an analog multiplier circuit. The correction factors are themselves determined without demultiplexing the detector output signal.
摘要翻译: 特别适用于测量车辆排气中的HC,CO和CO 2浓度的非分散型红外线气体分析仪包括用于保持样品气体的样品室,用于引导光束通过室的辐射发射体和用于指示量的检测器 的辐射吸收。 在要被检测的气体成分的吸收带上传送辐射的多个滤光器交替地位于辐射路径中,以产生具有所有气体的浓度信息的时间复用信号。 时间复用检测器输出通过使用模拟乘法器电路“动态”校正增益和偏移误差,而不需要解复用。 校正因子本身是在不分离检测器输出信号的情况下确定的。
-
-
-
-
-
-
-
-
-