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公开(公告)号：US20120080611A1
公开(公告)日：2012-04-05
申请号：US12865432
申请日：2009-02-02
CPC分类号： G01N21/49 , G01J1/0242 , G01J1/0266 , G01J3/02 , G01J3/0208 , G01J3/0218 , G01J3/0229 , G01J3/0291 , G01J3/4412 , G01N15/0205 , G01N21/51 , G01N21/53 , G01N21/532 , G01N21/64 , G01N2015/03 , G01N2021/4792 , G01N2021/6419 , G01N2021/6421 , G01N2021/6476
摘要： A photometric device for investigating a sample, comprises an array of radiation sources that are spaced apart from one another, and which are operable to generate radiation that differs from that generated by the other radiation sources in the array. The device includes a lens arrangement for focusing the radiation at a region of space where a sample may be located for example by means of a sample holder, and at least one detector for receiving radiation from the region of space. Preferably, a number of detectors are employed that are spaced apart from one another, and especially about an axis of the device, so that one radiation detector can detect radiation transmitted by the sample and the other detectors can detect radiation scattered by it. The radiation sources may be time division multiplexed so that in each time slot the detectors receive radiation originating from each radiation source. In an alternative embodiment, the radiation from the region of space may be transmitted to the sample via a beam homogeniser, for example an optical waveguide in the form of an optical fibre, which may be used to reduce or remove speckle where laser diodes are employed as the radiation sources. The device may be used to determine the particle size distribution of particles in a sample by a method employing Bayesian inference.
摘要翻译： 用于调查样品的测光装置包括彼此间隔开的辐射源阵列，并且其可操作以产生与由阵列中的其它辐射源产生的辐射不同的辐射。 该装置包括用于将辐射聚焦在例如借助于样品保持器的样品可能位于的空间区域处的透镜装置，以及用于接收来自空间区域的辐射的至少一个检测器。 优选地，使用彼此间隔开的多个检测器，特别是围绕设备的轴线，使得一个辐射检测器可以检测由样品传输的辐射，并且其它检测器可以检测由其散射的辐射。 辐射源可以被时分复用，使得在每个时隙中，检测器接收来自每个辐射源的辐射。 在替代实施例中，来自空间区域的辐射可以经由光束均化器（例如，光纤形式的光波导）传输到样品，该光波导可用于减少或去除使用激光二极管的斑点 作为辐射源。 该装置可用于通过采用贝叶斯推理的方法来确定样品中颗粒的粒度分布。
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公开(公告)号：US08742368B2
公开(公告)日：2014-06-03
申请号：US12865432
申请日：2009-02-02
IPC分类号： F21V9/16
CPC分类号： G01N21/49 , G01J1/0242 , G01J1/0266 , G01J3/02 , G01J3/0208 , G01J3/0218 , G01J3/0229 , G01J3/0291 , G01J3/4412 , G01N15/0205 , G01N21/51 , G01N21/53 , G01N21/532 , G01N21/64 , G01N2015/03 , G01N2021/4792 , G01N2021/6419 , G01N2021/6421 , G01N2021/6476
摘要： A photometric device for investigating a sample, comprises an array of radiation sources that are spaced apart from one another, and which are operable to generate radiation that differs from that generated by the other radiation sources in the array. The device includes a lens arrangement for focusing the radiation at a region of space where a sample may be located for example by means of a sample holder, and at least one detector for receiving radiation from the region of space. Preferably, a number of detectors are employed that are spaced apart from one another, and especially about an axis of the device, so that one radiation detector can detect radiation transmitted by the sample and the other detectors can detect radiation scattered by it. The radiation sources may be time division multiplexed so that in each time slot the detectors receive radiation originating from each radiation source. In an alternative embodiment, the radiation from the region of space may be transmitted to the sample via a beam homogeniser, for example an optical waveguide in the form of an optical fibre, which may be used to reduce or remove speckle where laser diodes are employed as the radiation sources. The device may be used to determine the particle size distribution of particles in a sample by a method employing Bayesian inference.
摘要翻译： 用于调查样品的测光装置包括彼此间隔开的辐射源阵列，并且其可操作以产生与由阵列中的其它辐射源产生的辐射不同的辐射。 该装置包括用于将辐射聚焦在例如借助于样品保持器的样品可能位于的空间区域处的透镜装置，以及用于接收来自空间区域的辐射的至少一个检测器。 优选地，使用彼此间隔开的多个检测器，特别是围绕设备的轴线，使得一个辐射检测器可以检测由样品传输的辐射，并且其它检测器可以检测由其散射的辐射。 辐射源可以被时分复用，使得在每个时隙中，检测器接收来自每个辐射源的辐射。 在替代实施例中，来自空间区域的辐射可以经由光束均化器（例如，光纤形式的光波导）传输到样品，其可以用于减少或去除使用激光二极管的斑点 作为辐射源。 该装置可用于通过采用贝叶斯推理的方法来确定样品中颗粒的粒度分布。
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