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公开(公告)号：US09128047B2
公开(公告)日：2015-09-08
申请号：US13062301
申请日：2009-09-04
Applicant: Brian Alexander , Nitin Vayeda , Kemal Ajay
Inventor： Brian Alexander , Nitin Vayeda , Kemal Ajay
CPC classification number: G01N21/53 , G01F1/667 , G01N15/06 , G01N15/1434 , G01N2015/0693 , G01N2021/4733 , G01N2201/061 , G01N2201/062 , G08B17/10 , G08B17/107 , G08B17/113 , G08B29/26
Abstract: A method of detecting particles in an air flow is described. The method includes receiving a signal indicative of light intensity scattered from the air flow at a plurality of wavelengths and processing the signal indicative of the intensity of received light at each of the wavelengths and a corresponding wavelength dependent parameter to generate an output signal indicative of at least one characteristic of particles in the air flow. A particle detection system is also described.
Abstract translation: 描述了一种在空气流中检测颗粒的方法。 该方法包括：接收指示从多个波长的空气流散射的光强度的信号，并且处理指示在每个波长处的接收光的强度的信号和相应的波长相关参数，以产生指示在 空气流中颗粒的最小特征。 还描述了粒子检测系统。
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公开(公告)号：US20110255087A1
公开(公告)日：2011-10-20
申请号：US13062301
申请日：2009-09-04
Applicant: Brian Alexander , Nitin Vayeda , Kemal Ajay
Inventor： Brian Alexander , Nitin Vayeda , Kemal Ajay
IPC: G01N21/00
CPC classification number: G01N21/53 , G01F1/667 , G01N15/06 , G01N15/1434 , G01N2015/0693 , G01N2021/4733 , G01N2201/061 , G01N2201/062 , G08B17/10 , G08B17/107 , G08B17/113 , G08B29/26
Abstract: A method of detecting particles in an air flow is described. The method includes receiving a signal indicative of light intensity scattered from the air flow at a plurality of wavelengths and processing the signal indicative of the intensity of received light at each of the wavelengths and a corresponding wavelength dependent parameter to generate an output signal indicative of at least one characteristic of particles in the air flow. A particle detection system is also described.
Abstract translation: 描述了一种在空气流中检测颗粒的方法。 该方法包括：接收指示从多个波长的空气流散射的光强度的信号，并且处理指示在每个波长处的接收光的强度的信号和相应的波长相关参数，以产生指示在 空气流中颗粒的最小特征。 还描述了粒子检测系统。
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公开(公告)号：US09702802B2
公开(公告)日：2017-07-11
申请号：US13582832
申请日：2011-03-04
Applicant: Kemal Ajay , Nitin Vayeda
Inventor： Kemal Ajay , Nitin Vayeda
IPC: G01N15/06 , G01N1/22 , G08B17/10 , G08B17/113
CPC classification number: G01N15/06 , G01N1/2205 , G01N2015/0693 , G08B17/10 , G08B17/113
Abstract: There is described a filter arrangement for a particle detector for detecting particles in an environment. The particle detector can include one or more sensors for analyzing fluid in a detection region to produce sensor output. The filter arrangement includes structure defining flow paths, for conveying fluid from the environment towards the detection region, including a first flow path, which includes a filter, and a second flow path bypassing the filter. There is also provided a mechanism for controlling relative flow rates of fluid through the first flow path and the second flow path and a controller configured to receive the sensor output corresponding to at least two relative flow rates and apply logic thereto to generate an output indicative of a condition of the filter.
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