公开(公告)号：US09395345B2

公开(公告)日：2016-07-19

申请号：US13582846

申请日：2011-03-03

Applicant: Rajiv Kumar Singh ,  Kemal Ajay

Inventor： Rajiv Kumar Singh ,  Kemal Ajay

IPC: G01N1/22 ,  G01N33/00 ,  G08B17/10

CPC classification number: G01N33/0027 ,  G01N1/2202 ,  G01N2001/2223 ,  G08B17/10 ,  G08B17/113

Abstract: A sensing system and method for detecting particles in an air volume includes a main airflow path including an inlet from the air volume. Also included is a collection site within the main airflow path. The collection site is for drawing an air sample from the main airflow path. Additionally the system includes a means to induce a localized increase in particle speed at the collection site relative to air speed along the remainder of the main airflow path. The means to induce a localized increase includes an auxiliary airflow path from the main airflow path. The auxiliary airflow path has an exit upstream of the collection site. In an alternative form of the invention, the means to induce the localized increase in particle speed at the collection site comprises a venturi in the main airflow path with the collection site being disposed along the venturi.

Abstract translation: 用于检测空气容积中的颗粒的感测系统和方法包括主空气路径，其包括来自空气体积的入口。 还包括主要通风道内的收集站点。 收集地点用于从主气流路径抽取空气样本。 此外，该系统还包括一种方法，用于相对于沿着主气流路径的其余部分的空气速度引起收集位置处的粒子速度的局部增加。 引起局部增加的手段包括从主气流路径的辅助气流路径。 辅助气流路径在收集位置的上游具有出口。 在本发明的替代形式中，诱导收集部位的颗粒速度的局部增加的方法包括在主气流路径中的文氏管，其中收集位置沿文丘里管布置。

公开(公告)号：US20130199270A1

公开(公告)日：2013-08-08

申请号：US13582846

申请日：2011-03-03

Applicant: Rajiv Kumar Singh ,  Kemal Ajay

Inventor： Rajiv Kumar Singh ,  Kemal Ajay

IPC: G01N33/00

CPC classification number: G01N33/0027 ,  G01N1/2202 ,  G01N2001/2223 ,  G08B17/10 ,  G08B17/113

Abstract: A sensing system and method for detecting particles in an air volume includes a main airflow path including an inlet from the air volume. Also included is a collection site within the main airflow path. The collection site is for drawing an air sample from the main airflow path. Additionally the system includes a means to induce a localized increase in particle speed at the collection site relative to air speed along the remainder of the main airflow path. The means to induce a localized increase includes an auxiliary airflow path from the main airflow path. The auxiliary airflow path has an exit upstream of the collection site. In an alternative form of the invention, the means to induce the localized increase in particle speed at the collection site comprises a venturi in the main airflow path with the collection site being disposed along the venturi.

Abstract translation: 用于检测空气容积中的颗粒的感测系统和方法包括主空气路径，其包括来自空气体积的入口。 还包括主要通风道内的收集站点。 收集地点用于从主气流路径抽取空气样本。 此外，该系统还包括一种方法，用于相对于沿着主气流路径的其余部分的空气速度引起收集位置处的粒子速度的局部增加。 引起局部增加的手段包括从主气流路径的辅助气流路径。 辅助气流路径在收集位置的上游具有出口。 在本发明的替代形式中，诱导收集部位的颗粒速度的局部增加的方法包括在主气流路径中的文氏管，其中收集位置沿文丘里管布置。