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公开(公告)号：US20170363475A1
公开(公告)日：2017-12-21
申请号：US15693233
申请日：2017-08-31
CPC分类号： G01J5/0018 , G01J5/0014 , G01J5/025 , G01J5/026 , G08B17/12 , G08B31/00
摘要： A flame detector configured for radiant energy monitoring, quantification, and information transmission. The system has at least one optical sensor channel, each including an optical sensor configured to receive optical energy from a surveilled scene within a field of view, the channel producing a signal providing a quantitative indication of the optical radiation energy received by the optical sensor within a sensor spectral bandwidth. A processor is responsive to the signal from the at least one optical sensor channel to provide a flame present indication of the presence of a flame, and a quantitative indication representing a magnitude of the optical radiation energy from the surveilled scene. An Artificial Neural Network may be used to provide an output corresponding to a flame condition.
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公开(公告)号：US09482592B2
公开(公告)日：2016-11-01
申请号：US14495739
申请日：2014-09-24
摘要： An embodiment of a directional ultrasonic gas leak detector includes an array of spaced MEMS microphones, each responsive to incident airborne ultrasonic energy from gas leak sources to generate a microphone signal. A beamforming processor is responsive to the microphone signals from the array to generate processor output signals indicative of estimated angles of arrival of ultrasonic energy incident on the array. The array may be disposed in an explosion proof housing structure for operation in hazardous location, or implemented as an intrinsically safe device. In another embodiment, a display is responsive to the processor output signals to generate an image representative of a surveilled scene with the estimated magnitudes of incident energy at beam directions overlaid onto the image.
摘要翻译： 定向超声波气体泄漏检测器的实施例包括间隔开的MEMS麦克风阵列，每个MEMS麦克风响应于来自气体泄漏源的入射的空气超声能量以产生麦克风信号。 波束形成处理器响应来自阵列的麦克风信号，以产生指示入射到阵列上的超声波能量的估计到达角的处理器输出信号。 阵列可以设置在防爆壳体结构中，用于在危险场所中操作，或实现为本质安全装置。 在另一个实施例中，显示器响应于处理器输出信号以产生表示监视场景的图像，其中估计的入射能量的大小在覆盖在图像上的波束方向上。
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公开(公告)号：US09506833B2
公开(公告)日：2016-11-29
申请号：US14336399
申请日：2014-07-21
发明人： Javid Huseynov , Shankar B. Baliga
摘要： An ultrasonic gas leak detector and test method, configured to discriminate the ultrasound generated by a pressurized gas leak into the atmosphere from ultrasound generated by man-made ultrasonic sources. In an exemplary embodiment an ultrasonic gas leak detector is able to identify a remote ultrasonic test source as a known test source and to initiate a test sequence instead of alarm. An output function generates detector outputs in dependence on the test mode initiation. The ultrasonic gas leak detector may also identify various other man-made ultrasonic sources as being neither gas leaks nor remote test sources but as nuisance or hostile sources to be identified as such. The test method utilizes a narrowband test source at a known ultrasonic frequency to ensonify the detector.
摘要翻译： 一种超声波气体泄漏检测器和测试方法，被配置为将由加压气体泄漏产生的超声波从人造超声波源产生的超声区分开到大气中。 在示例性实施例中，超声波气体泄漏检测器能够将远程超声波测试源识别为已知测试源，并启动测试序列而不是报警。 输出功能根据测试模式启动产生检测器输出。 超声波气体泄漏检测器还可以将各种其他人造超声波源识别为既不是气体泄漏也不是远程测试源，而是作为妨碍或敌意来源识别。 该测试方法利用已知超声波频率的窄带测试源来确定检测器。
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公开(公告)号：US20150276540A1
公开(公告)日：2015-10-01
申请号：US14336399
申请日：2014-07-21
发明人： Javid Huseynov , Shankar B. Baliga
摘要： An ultrasonic gas leak detector and test method, configured to discriminate the ultrasound generated by a pressurized gas leak into the atmosphere from ultrasound generated by man-made ultrasonic sources. In an exemplary embodiment an ultrasonic gas leak detector is able to identify a remote ultrasonic test source as a known test source and to initiate a test sequence instead of alarm. An output function generates detector outputs in dependence on the test mode initiation. The ultrasonic gas leak detector may also identify various other man-made ultrasonic sources as being neither gas leaks nor remote test sources but as nuisance or hostile sources to be identified as such. The test method utilizes a narrowband test source at a known ultrasonic frequency to ensonify the detector.
摘要翻译： 一种超声波气体泄漏检测器和测试方法，被配置为将由加压气体泄漏产生的超声波从人造超声波源产生的超声区分开到大气中。 在示例性实施例中，超声波气体泄漏检测器能够将远程超声波测试源识别为已知测试源，并启动测试序列而不是报警。 输出功能根据测试模式启动产生检测器输出。 超声波气体泄漏检测器还可以将各种其他人造超声波源识别为既不是气体泄漏也不是远程测试源，而是作为妨碍或敌意来源识别。 该测试方法利用已知超声波频率的窄带测试源来确定检测器。
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公开(公告)号：US10557752B2
公开(公告)日：2020-02-11
申请号：US15403528
申请日：2017-01-11
发明人： Edwin Choo Yong Liang , Yaofeng Xu
摘要： An embodiment of a flame detector coverage verification system includes an optical source for generating a light beam, and a light-path control unit connected to the optical source and configured to direct the beam through a range of movements about a center line direction of the flame detector to visually demarcate an area that falls within the flame detector's field of view. An indicator device configured to visually indicate a pan direction of the detector optical center line. A tilt indicator is configured to determine and visually display the tilt angle of the detector with respect to a ground plane. A hub structure temporarily attaches the control unit to the flame detector, the control unit pivotally connected to the hub structure so that the optical source light beam is oriented perpendicular to a ground plane.
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公开(公告)号：US09778100B2
公开(公告)日：2017-10-03
申请号：US14996808
申请日：2016-01-15
发明人： Edwin Choo Yong Liang , Yaofeng Xu
CPC分类号： G01J1/0414 , G01J5/0018 , G01J5/025 , G01J5/0275 , G01J5/041 , G01J5/047 , G01J5/0809 , G01J5/089 , G01J5/0896
摘要： An embodiment of a flame detector coverage verification system includes an optical source for generating a light beam, and a control unit configured to point the beam in a direction generally co-aligned with an optical center line of the flame detector and through a range of movement about the direction to visually demarcate an area that falls within the flame detector's field of view. In one embodiment, the control unit includes a movable mirror to deflect the laser beam. The system may include an indicator device configured to determine and visually indicate a pan direction of the detector optical center line with respect to a defined direction, and a declination indicator configured to determine and visually display the tilt angle (angle of declination) of the detector optical center line with respect to a ground plane.
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公开(公告)号：US20170089800A1
公开(公告)日：2017-03-30
申请号：US14871468
申请日：2015-09-30
IPC分类号： G01M3/24
摘要： An ultrasonic gas leak detector system for locating a source of ultrasonic airborne energy is described. An exemplary embodiment includes a plurality of spatially separated ultrasonic gas leak detectors, each configured to generate signals indicative of detected angles of arrival of received ultrasonic energy at the respective detectors. A locator processor receives the signals generated by the detectors, and is configured to process the signals to determine a location in three dimensions of the source of the ultrasonic energy received at the detectors and provide locator processor output signals indicative of the location
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公开(公告)号：US20160084729A1
公开(公告)日：2016-03-24
申请号：US14495739
申请日：2014-09-24
IPC分类号： G01M3/24
摘要： An embodiment of a directional ultrasonic gas leak detector includes an array of spaced MEMS microphones, each responsive to incident airborne ultrasonic energy from gas leak sources to generate a microphone signal. A beamforming processor is responsive to the microphone signals from the array to generate processor output signals indicative of estimated angles of arrival of ultrasonic energy incident on the array. The array may be disposed in an explosion proof housing structure for operation in hazardous location, or implemented as an intrinsically safe device. In another embodiment, a display is responsive to the processor output signals to generate an image representative of a surveilled scene with the estimated magnitudes of incident energy at beam directions overlaid onto the image.
摘要翻译： 定向超声波气体泄漏检测器的实施例包括间隔开的MEMS麦克风阵列，每个MEMS麦克风响应于来自气体泄漏源的入射的空气超声能量以产生麦克风信号。 波束形成处理器响应来自阵列的麦克风信号，以产生指示入射到阵列上的超声波能量的估计到达角的处理器输出信号。 阵列可以设置在防爆壳体结构中，用于在危险场所中操作，或实现为本质安全装置。 在另一个实施例中，显示器响应于处理器输出信号以产生表示监视场景的图像，其中估计的入射能量的大小在覆盖在图像上的波束方向上。
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公开(公告)号：US09995647B2
公开(公告)日：2018-06-12
申请号：US14871468
申请日：2015-09-30
摘要： An ultrasonic gas leak detector system for locating a source of ultrasonic airborne energy is described. An exemplary embodiment includes a plurality of spatially separated ultrasonic gas leak detectors, each configured to generate signals indicative of detected angles of arrival of received ultrasonic energy at the respective detectors. A locator processor receives the signals generated by the detectors, and is configured to process the signals to determine a location in three dimensions of the source of the ultrasonic energy received at the detectors and provide locator processor output signals indicative of the location.
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公开(公告)号：US20170205282A1
公开(公告)日：2017-07-20
申请号：US15403528
申请日：2017-01-11
发明人： Edwin Choo Yong Liang , Yaofeng Xu
CPC分类号： G01J1/4257 , G01C9/00 , G01J1/0414 , G08B17/10
摘要： An embodiment of a flame detector coverage verification system includes an optical source for generating a light beam, and a light-path control unit connected to the optical source and configured to direct the beam through a range of movements about a center line direction of the flame detector to visually demarcate an area that falls within the flame detector's field of view. An indicator device configured to visually indicate a pan direction of the detector optical center line. A tilt indicator is configured to determine and visually display the tilt angle of the detector with respect to a ground plane. A hub structure temporarily attaches the control unit to the flame detector, the control unit pivotally connected to the hub structure so that the optical source light beam is oriented perpendicular to a ground plane.
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