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公开(公告)号：US20160107137A1
公开(公告)日：2016-04-21
申请号：US14886661
申请日：2015-10-19
Applicant: Aerosol Dynamics Inc.
Inventor： Susanne Vera Hering , Steven Russel Spielman , Gregory Stephen Lewis
IPC: B01J8/08
CPC classification number: B01J8/087 , B01D5/0006 , B01J2208/00026 , B01J2208/00203 , G01N15/065 , G01N2015/0681
Abstract: An apparatus and method for creating enlarged particles in a flow. The apparatus includes a coiled tube having a tube diameter and a coil diameter, the tube having an input receiving the flow and an output, the tube having a length between the input and the output. A heater heats a first portion of the tube along a first, longitudinal portion of the tube, and a cooler cools a second, longitudinal portion of the tube along at least a second portion of the tube. The method includes heating a first portion of the tube along a first longitudinal portion of the tube, and simultaneously cooling a second portion of the tube along at least a second longitudinal portion of the tube. While heating and cooling, the method includes introducing a flow into an interior of the tube at an input, the flow moving the output.
Abstract translation: 一种用于在流中产生增大的颗粒的装置和方法。 该设备包括具有管直径和线圈直径的盘管，该管具有接收流量的输入和输出，该管具有在输入和输出之间的长度。 加热器沿着管的第一纵向部分加热管的第一部分，并且冷却器沿着管的至少第二部分冷却管的第二纵向部分。 该方法包括沿着管的第一纵向部分加热管的第一部分，同时沿着管的至少第二纵向部分冷却管的第二部分。 在加热和冷却的同时，该方法包括在输入端将流引入到管的内部，流动移动输出。
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公开(公告)号：US20150268140A1
公开(公告)日：2015-09-24
申请号：US14434263
申请日：2013-10-08
Applicant: Brookhaven Science Associates, LLC , Aerosol Dynamics, INC.
Inventor： Jian Wang , Susanne Vera Hering , Steven Russel Spielman , Chongai Kuang
CPC classification number: G01N1/28 , G01N15/0227 , G01N15/0255 , G01N15/065 , G01N21/17 , G01N33/0009 , G01N33/18 , G01N2015/0046
Abstract: A parallel plate dimensional electrical mobility separator and laminar flow water condensation provide rapid, mobility-based particle sizing at concentrations typical of the remote atmosphere. Particles are separated spatially within the electrical mobility separator, enlarged through water condensation, and imaged onto a CCD array. The mobility separation distributes particles in accordance with their size. The condensation enlarges size-separated particles by water condensation while they are still within the gap of the mobility drift tube. Once enlarged the particles are illuminated by a laser. At a pre-selected frequency, typically 10 Hz, the position of all of the individual particles illuminated by the laser are captured by CCD camera. This instantly records the particle number concentration at each position. Because the position is directly related to the particle size (or mobility), the particle size spectra is derived from the images recorded by the CCD.
Abstract translation: 平行平板尺寸电迁移率分离器和层流水冷凝在偏远大气层的典型浓度下提供快速，基于移动性的颗粒尺寸。 颗粒在电迁移率分离器内空间分离，通过水冷凝扩大，并成像到CCD阵列上。 移动性分离根据其尺寸分布颗粒。 通过水凝结，凝结物在移动漂移管的间隙内仍然在缩小时，会缩小尺寸分离的颗粒。 一旦放大，颗粒被激光照射。 在预选频率（通常为10 Hz）下，由CCD照相机捕获由激光照射的所有单个颗粒的位置。 这可以立即记录每个位置的粒子数浓度。 由于该位置与粒度（或移动性）直接相关，所以粒度谱由CCD记录的图像导出。
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13.发明申请公开(公告)号：US20150075372A1
公开(公告)日：2015-03-19
申请号：US14318126
申请日：2014-06-27
Applicant: AEROSOL DYNAMICS INC.
Inventor： Susanne V. Hering , Gregory S. Lewis , Steven R. Spielman
IPC: B01D53/00
CPC classification number: B01D53/002 , B01D5/0009 , B01D53/1475 , B01D2257/504 , G01M15/102 , G01N15/065 , G01N2015/0038 , G01N2015/1481 , H04L47/50 , Y02T10/47
Abstract: This technology relates to the enlargement by water condensation in a laminar flow of airborne particles with diameters of the order of a few nanometers to hundreds of nanometers to form droplets with diameters of the order of several micrometers. The technology presents several advanced designs, including the use of double-stage condensers. It has application to measuring the number concentration of particles suspended in air or other gas, to collecting these particles, or to focusing these particles.
Abstract translation: 该技术涉及通过直径为几纳米至几百纳米的空气中的颗粒的层流中的水冷凝扩大以形成直径为几微米级的液滴。 该技术提供了几种先进的设计，包括使用双级冷凝器。 它可用于测量悬浮在空气或其他气体中的颗粒的数量浓度，以收集这些颗粒或聚焦这些颗粒。
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公开(公告)号：US20220128445A1
公开(公告)日：2022-04-28
申请号：US17568940
申请日：2022-01-05
Applicant: Aerosol Dynamics Inc.
Inventor： Susanne Vera Hering , Gregory Stephen Lewis , Steven Russel Spielman
IPC: G01N15/06
Abstract: A method and apparatus to create water vapor supersaturation and particulate counts from an air sample. The method and apparatus include introducing an air sample into a chamber connected to an optical detector and an outlet by pumping at the outlet. The method further includes passing air through the chamber and optical detector in a steady flow, and subsequently closing the inlet while continuing the pumping to expand the air sample and exhaust a portion of the air sample through the optical detector. The walls of the particle chamber are wetted with a fluid such as water, and one portion of the wall is warmer than the other portions such that there is some condensational growth prior to the expansion, and yet more condensational growth during the expansion. The cycles are repeated by continuously repeating the introducing, passing and closing.
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公开(公告)号：US10883910B2
公开(公告)日：2021-01-05
申请号：US16372643
申请日：2019-04-02
Applicant: AEROSOL DYNAMICS INC.
Inventor： Susanne Vera Hering , Steven Russel Spielman , Gregory Stephen Lewis
Abstract: An apparatus and method for condensationally enlarging particles in a flow of air or other gas. The apparatus includes a coiled tube having a tube diameter and a coil diameter, the tube having an input receiving the flow and an output, the tube having a length between the input and the output. The walls of the tube are wetted with a condensing fluid. The walls of the first portion of the coiled tube are held a temperature that is lower than the highest temperature in the second portion of the tube. The tube may have a third vapor recovery portion with wall temperature lower than the highest temperature in the second portion, and which optionally may not be coiled. While heating and cooling, the method includes introducing a flow into an interior of the tube at an input, the flow moving the output.
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Patent Agency Ranking
公开(公告)号：US20190224637A1
公开(公告)日：2019-07-25
申请号：US16372677
申请日：2019-04-02
Applicant: AEROSOL DYNAMICS INC.
Inventor： Susanne Vera Hering , Steven Russel Spielman , Gregory Stephen Lewis
Abstract: An apparatus and method for creating enlarged particles in a flow. The apparatus includes a coiled tube having a tube diameter and a coil diameter, the tube having an input receiving the flow and an output, the tube having a length between the input and the output. A heater heats a first portion of the tube along a first, longitudinal portion of the tube, and a cooler cools a second, longitudinal portion of the tube along at least a second portion of the tube. The method includes heating a first portion of the tube along a first longitudinal portion of the tube, and simultaneously cooling a second portion of the tube along at least a second longitudinal portion of the tube. While heating and cooling, the method includes introducing a flow into an interior of the tube at an input, the flow moving the output.
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公开(公告)号：US09395281B2
公开(公告)日：2016-07-19
申请号：US14434263
申请日：2013-10-08
Applicant: Brookhaven Science Associates, LLC , Aerosol Dynamics, Inc.
Inventor： Jian Wang , Susanne Vera Hering , Steven Russel Spielman , Chongai Kuang
CPC classification number: G01N1/28 , G01N15/0227 , G01N15/0255 , G01N15/065 , G01N21/17 , G01N33/0009 , G01N33/18 , G01N2015/0046
Abstract: A parallel plate dimensional electrical mobility separator and laminar flow water condensation provide rapid, mobility-based particle sizing at concentrations typical of the remote atmosphere. Particles are separated spatially within the electrical mobility separator, enlarged through water condensation, and imaged onto a CCD array. The mobility separation distributes particles in accordance with their size. The condensation enlarges size-separated particles by water condensation while they are still within the gap of the mobility drift tube. Once enlarged the particles are illuminated by a laser. At a pre-selected frequency, typically 10 Hz, the position of all of the individual particles illuminated by the laser are captured by CCD camera. This instantly records the particle number concentration at each position. Because the position is directly related to the particle size (or mobility), the particle size spectra is derived from the images recorded by the CCD.
Abstract translation: 平行平板尺寸电迁移率分离器和层流水冷凝在偏远大气层的典型浓度下提供快速，基于移动性的颗粒尺寸。 颗粒在电迁移率分离器内空间分离，通过水冷凝扩大，并成像到CCD阵列上。 移动性分离根据其尺寸分布颗粒。 通过水凝结，凝结物在移动漂移管的间隙内仍然在缩小时，会缩小尺寸分离的颗粒。 一旦放大，颗粒被激光照射。 在预选频率（通常为10 Hz）下，由CCD照相机捕获由激光照射的所有单个颗粒的位置。 这可以立即记录每个位置的粒子数浓度。 由于该位置与粒度（或移动性）直接相关，所以粒度谱由CCD记录的图像导出。
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公开(公告)号：US20140029154A1
公开(公告)日：2014-01-30
申请号：US14043662
申请日：2013-10-01
Applicant: Aerosol Dynamics Inc.
Inventor： Susanne Vera Hering , Steven Russel Spielman , Gregory Stephen Lewis
IPC: B03C3/38
CPC classification number: B03C3/38 , B01D5/0009 , B01D53/002 , B01D53/1475 , B01D2257/504 , G01N15/065 , G01N2015/0038 , G01N2015/1481
Abstract: A particle charging method and apparatus are provided. An ion source is applied to a particle laden flow. The flow is introduced into a container in a laminar manner. The container has at least a first section, a second section and a third section. The first section includes wetted walls at a first temperature. A second section adjacent to the first section has wetted walls at a second temperature T2 greater than the first temperature T1. A third section adjacent to the second section has dry walls provided at a temperature T3 equal to or greater than T2. Additional water removal and temperature conditioning sections may be provided.
Abstract translation: 提供了一种粒子充电方法和装置。 将离子源施加到载满颗粒的流。 将流体以层流方式引入容器中。 容器至少具有第一部分，第二部分和第三部分。 第一部分包括第一温度下的湿壁。 与第一部分相邻的第二部分具有大于第一温度T1的第二温度T2的湿壁。 与第二部分相邻的第三部分具有设置在等于或大于T2的温度T3的干壁。 可以提供额外的除水和温度调节部分。
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公开(公告)号：US12111241B2
公开(公告)日：2024-10-08
申请号：US17568940
申请日：2022-01-05
Applicant: Aerosol Dynamics Inc.
Inventor： Susanne Vera Hering , Gregory Stephen Lewis , Steven Russel Spielman
IPC: G01N15/06 , G01N15/075
CPC classification number: G01N15/06 , G01N15/075
Abstract: A method and apparatus to create water vapor supersaturation and particulate counts from an air sample. The method and apparatus include introducing an air sample into a chamber connected to an optical detector and an outlet by pumping at the outlet. The method further includes passing air through the chamber and optical detector in a steady flow, and subsequently closing the inlet while continuing the pumping to expand the air sample and exhaust a portion of the air sample through the optical detector. The walls of the particle chamber are wetted with a fluid such as water, and one portion of the wall is warmer than the other portions such that there is some condensational growth prior to the expansion, and yet more condensational growth during the expansion. The cycles are repeated by continuously repeating the introducing, passing and closing.
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公开(公告)号：US11789166B2
公开(公告)日：2023-10-17
申请号：US16911368
申请日：2020-06-24
Applicant: Aerosol Dynamics Inc.
Inventor： Susanne Vera Hering , Gregory Stephen Lewis , Steven Russel Spielman , Mark R. Stolzenberg
CPC classification number: G01T1/171 , G01N15/0205 , G01N15/0211 , G01N15/065 , G01N15/1459 , G01T1/172
Abstract: An approach for counting particles suspended in a flow of gas or liquid in instruments that direct the flow through an illuminated region. Pulses are detected when the signal is below a threshold amplitude and moves above the threshold amplitude. This movement above the threshold creates a dead time during which only one pulse is detected until the signal amplitude moves sufficiently below the threshold such that a subsequent particle creates a distinct pulse. After counting the number of pulses, and determining the measured live time that the signal is below the threshold value, an initial particle concentration is calculated, and the calculation corrected for coincidence by calculating an actual live time as a measured live time minus a constant multiplied by the number of distinctly counted pulses, where the constant has the units of time. From this, particle concentrations in a volume can be determined.
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