公开(公告)号：US20150310717A1

公开(公告)日：2015-10-29

申请号：US14647752

申请日：2013-11-26

Applicant: XTRALIS TECHNOLOGIES LTD

Inventor： Tawfeeq Gehad Al-Farra ,  Alasdair James Williamson ,  John Vythoulkas ,  Giuseppe Leslie Fiusco ,  Ghassan Habelrih ,  Rajiv Singh

IPC: G08B17/10

CPC classification number: G08B17/12 ,  G08B17/00 ,  G08B17/02 ,  G08B17/10 ,  G08B25/002 ,  G08B29/043 ,  G08B29/185

Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region. The particle detection system further includes processing means adapted for receiving the first and second signals and comparing the first signal to a predetermined threshold level and comparing the second signal to a predetermined threshold flow rate, and generating an output signal based on the respective comparisons of the first and second signals. A method of particle detection is also described.

Abstract translation: 一种粒子检测系统，包括与至少两个样品入口流体连通的颗粒检测器，用于接收来自监测区域的样品流。 粒子检测器包括检测装置，用于检测样品流中的颗粒水平，并输出指示样品流中颗粒水平的第一信号。 流量传感器位于样品入口的下游，用于测量样品流的流速并输出指示样品流量的第二信号。 至少第一样品入口通常对被监测区域开放，用于接收至少部分样品流。 至少第二个样品入口通常关闭到监测区域，但是响应于监测区域中环境条件的变化，可以对监测区域打开。 粒子检测系统还包括适于接收第一和第二信号并将第一信号与预定阈值电平进行比较并将第二信号与预定阈值流率进行比较的处理装置，并且基于相应的比较结果生成输出信号 第一和第二信号。 还描述了颗粒检测方法。

公开(公告)号：US20160314669A1

公开(公告)日：2016-10-27

申请号：US15201042

申请日：2016-07-01

Applicant: Xtralis Technologies Ltd

Inventor： Tawfeeq Gehad Al-Farra ,  Alasdair James Williamson ,  John Vythoulkas ,  Giuseppe Leslie Fiusco ,  Ghassan Habelrih ,  Rajiv Singh

IPC: G08B17/12 ,  G08B29/04 ,  G08B29/18

CPC classification number: G08B17/12 ,  G08B17/00 ,  G08B17/02 ,  G08B17/10 ,  G08B25/002 ,  G08B29/043 ,  G08B29/185

Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region. The particle detection system further includes processing means adapted for receiving the first and second signals and comparing the first signal to a predetermined threshold level and comparing the second signal to a predetermined threshold flow rate, and generating an output signal based on the respective comparisons of the first and second signals. A method of particle detection is also described.

公开(公告)号：US09940806B2

公开(公告)日：2018-04-10

申请号：US15201042

申请日：2016-07-01

Applicant: Xtralis Technologies Ltd

Inventor： Tawfeeq Gehad Al-Farra ,  Alasdair James Williamson ,  John Vythoulkas ,  Giuseppe Leslie Fiusco ,  Ghassan Habelrih ,  Rajiv Singh

IPC: G08B21/00 ,  G08B17/12 ,  G08B17/10 ,  G08B29/18 ,  G08B17/02 ,  G08B25/00 ,  G08B29/04 ,  G08B17/00

CPC classification number: G08B17/12 ,  G08B17/00 ,  G08B17/02 ,  G08B17/10 ,  G08B25/002 ,  G08B29/043 ,  G08B29/185

Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region. The particle detection system further includes processing means adapted for receiving the first and second signals and comparing the first signal to a predetermined threshold level and comparing the second signal to a predetermined threshold flow rate, and generating an output signal based on the respective comparisons of the first and second signals. A method of particle detection is also described.

公开(公告)号：US09384643B2

公开(公告)日：2016-07-05

申请号：US14647752

申请日：2013-11-26

Applicant: Xtralis Technologies Ltd

Inventor： Tawfeeq Gehad Al-Farra ,  Alasdair James Williamson ,  John Vythoulkas ,  Giuseppe Leslie Fiusco ,  Ghassan Habelrih ,  Rajiv Singh

IPC: G08B17/00 ,  G08B17/10

CPC classification number: G08B17/12 ,  G08B17/00 ,  G08B17/02 ,  G08B17/10 ,  G08B25/002 ,  G08B29/043 ,  G08B29/185

Abstract: A particle detection system including a particle detector in fluid communication with at least two sample inlets for receiving a sample flow from a monitored region. The particle detector includes detection means for detecting the level of particles within the sample flow and outputting a first signal indicative of the level of particles within the sample flow. A flow sensor is located downstream of the sample inlets for measuring the flow rate of the sample flow and outputting a second signal indicative of the flow rate of the sample flow. At least a first sample inlet is normally open to the monitored region for receiving at least part of the sample flow. At least a second sample inlet is normally closed to the monitored region but is openable to the monitored region in response to a change in environmental conditions in the monitored region. The particle detection system further includes processing means adapted for receiving the first and second signals and comparing the first signal to a predetermined threshold level and comparing the second signal to a predetermined threshold flow rate, and generating an output signal based on the respective comparisons of the first and second signals. A method of particle detection is also described.

Abstract translation: 一种粒子检测系统，包括与至少两个样品入口流体连通的颗粒检测器，用于接收来自监测区域的样品流。 粒子检测器包括检测装置，用于检测样品流中的颗粒水平，并输出指示样品流中颗粒水平的第一信号。 流量传感器位于样品入口的下游，用于测量样品流的流速并输出指示样品流量的第二信号。 至少第一样品入口通常对被监测区域开放，用于接收至少部分样品流。 至少第二个样品入口通常关闭到监测区域，但是响应于监测区域中环境条件的变化，可以对监测区域打开。 粒子检测系统还包括适于接收第一和第二信号并将第一信号与预定阈值电平进行比较并将第二信号与预定阈值流率进行比较的处理装置，并且基于相应的比较结果生成输出信号 第一和第二信号。 还描述了颗粒检测方法。