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公开(公告)号：US11275012B2
公开(公告)日：2022-03-15
申请号：US17165308
申请日：2021-02-02
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
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公开(公告)号：US20210156785A1
公开(公告)日：2021-05-27
申请号：US17165308
申请日：2021-02-02
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
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公开(公告)号：US10908061B2
公开(公告)日：2021-02-02
申请号：US16126558
申请日：2018-09-10
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
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公开(公告)号：US10073023B2
公开(公告)日：2018-09-11
申请号：US15170715
申请日：2016-06-01
CPC分类号： G01N15/06 , G01N33/0009 , G01N33/0031 , G01N33/0036 , G01N2015/0026 , G01N2015/0046 , G01N2015/0693 , G01N2033/1873
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
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公开(公告)号：US20220214260A1
公开(公告)日：2022-07-07
申请号：US17693998
申请日：2022-03-14
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
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公开(公告)号：US12019004B2
公开(公告)日：2024-06-25
申请号：US17693998
申请日：2022-03-14
CPC分类号： G01N15/06 , G01N33/0009 , G01N33/0031 , G01N33/0036 , G01N2015/0026 , G01N2015/0046 , G01N2015/0693 , G01N2033/1873
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
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公开(公告)号：US20190011347A1
公开(公告)日：2019-01-10
申请号：US16126558
申请日：2018-09-10
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
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8.发明申请LIGHT EXTINCTION TOMOGRAPHY FOR MEASUREMENT OF ICE CRYSTALS AND OTHER SMALL PARTICLES 审中-公开用于测量冰晶和其他小颗粒的轻度放射图公开(公告)号：US20160274017A1
公开(公告)日：2016-09-22
申请号：US15170715
申请日：2016-06-01
CPC分类号： G01N15/06 , G01N33/0009 , G01N33/0031 , G01N33/0036 , G01N2015/0026 , G01N2015/0046 , G01N2015/0693 , G01N2033/1873
摘要： A tomography duct for wind tunnels includes a plurality of light sources and sensors displaced around a support structure. The light sources are cycled and sensor measurements are made from sensors opposite the light sources. Tomographic algorithms are used to determine an extinction map from the sensor measurements. The extinction map provides details about particles in a cross-section of the air flow through the tomography duct.
摘要翻译： 用于风洞的断层摄影管道包括多个光源和围绕支撑结构移位的传感器。 光源循环，传感器测量由与光源相对的传感器进行。 断层扫描算法用于从传感器测量中确定消光图。 灭绝图提供了通过断层摄影管道的空气流横截面中的颗粒的细节。
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9.发明申请Light Extinction Tomography for Measurement of Ice Crystals and Other Small Particles 审中-公开用于测量冰晶和其他小颗粒的光灭绝层析成像公开(公告)号：US20160011105A1
公开(公告)日：2016-01-14
申请号：US14751085
申请日：2015-06-25
CPC分类号： G01N33/0009 , G01N15/06 , G01N2015/0693
摘要： Systems and methods for imaging and detection of small liquid and solid water particles in different spray conditions includes visible light laser diodes that are pulsed across the area of interest and optical detectors that measure the extinction of light intensity at different directions. The attenuated light projections across the field of view are reconstructed to yield an image of the particles that crossed the plane of light. A wind tunnel is a major tool used in understanding of ice formation and the performance of aircraft engine components. The measurement of the spray provides calibration and, to date, wind tunnel calibration has been time consuming and expensive. This system and method provide near real-time in-situ quasi-quantitative full-field ice/water content data and the corresponding reconstructed images for analysis. The support frame, source-detector configurations, acquisition, simulation, and reconstruction methods of the light emission tomography technology are also disclosed.
摘要翻译： 用于在不同喷雾条件下成像和检测小液体和固体水颗粒的系统和方法包括在感兴趣区域脉冲的可见光激光二极管和测量不同方向的光强度消光的光学检测器。 跨越视场的衰减的光投影被重建以产生穿过光平面的颗粒的图像。 风洞是了解冰层形成和飞机发动机部件性能的主要工具。 喷雾的测量提供校准，并且迄今为止，风洞校准已经耗时且昂贵。 该系统和方法提供近实时原位准定量全场冰/水含量数据和相应的重建图像进行分析。 还公开了发光断层摄影技术的支撑框架，源检测器配置，采集，仿真和重建方法。
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10.发明授权公开(公告)号：US09681851B2
公开(公告)日：2017-06-20
申请号：US14542698
申请日：2014-11-17
CPC分类号： A61B6/583 , A61B6/032 , A61B6/482 , A61B6/488 , A61B6/542 , A61B6/544 , A61B6/545 , A61B6/584 , A61B6/586
摘要： Evaluating dose performance of a radiographic imaging system with respect to image quality using a phantom, a channelized hotelling observer module as a model observer, and a printer, a plaque, or an electronic display includes scanning and producing images for a plurality of sections of the phantom using the radiographic imaging system, wherein the plurality of sections represent a range of patient sizes and doses and wherein the sections of the phantom contain objects of measurable detectability. Also included is analyzing the images to determine detectability results for one or more of the contained objects within the images of the plurality of sections of the phantom, wherein the analyzing includes using a channelized hotelling observer (CHO) module as a model observer; and displaying, via the printer, the plaque, or the electronic display, a continuous detectability performance measurement function using the determined detectability results.
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