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公开(公告)号：US10598530B2
公开(公告)日：2020-03-24
申请号：US16279813
申请日：2019-02-19
摘要： A method for determining flow velocity in a flow path, comprises defining a flow path for a fluid, the fluid flowing in a downstream direction that is opposite an upstream direction. A thermally-conductive element is exposed to the flow path. A known amount of heat is applied to a first portion of the thermally-conductive element and a sensed temperature is sensed at a second portion of the thermally-conductive element downstream of the first portion. The known amount of heat and the sensed temperature are used to determine a flow velocity of the fluid in the flow path.
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公开(公告)号：US20180274958A1
公开(公告)日：2018-09-27
申请号：US15466517
申请日：2017-03-22
CPC分类号： G01F1/684 , G01F1/692 , G01F1/696 , G01F15/18 , G01F15/185
摘要： A flow sensor includes a tube having a tube wall with a window in it. A thermally-conductive base covers the window and has mounted to it a heater and a sensor of a hot film anemometer flow sensor. The base is sealed to the window to resist leakage of fluid from the flow path through the window under normal operating pressures. The hot film anemometer flow sensor is used to measure fluid flow through the tube.
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公开(公告)号：US10697921B2
公开(公告)日：2020-06-30
申请号：US15165819
申请日：2016-05-26
摘要： A flame rod analysis system, methods for determining a condition of a flame and a flame rod, and circuits for determining a condition of a flame and a flame rod. The flame rod analysis system comprises energy storage connectable to a flame rod, a pulsed source connected to the energy storage and providing a voltage pulse or a current pulse, and a buffer to allow a processor to measure a buffered voltage at various time points. Flame rod analysis systems can distinguish between various flame conditions (no flame, low flame, etc.) while simultaneously characterizing the condition of the flame rod (shorted to ground, contaminated, etc.). Some flame rod analysis systems can directly measure the resistance of the flame rod.
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公开(公告)号：US20160274049A1
公开(公告)日：2016-09-22
申请号：US15165819
申请日：2016-05-26
摘要： A flame rod analysis system, methods for determining a condition of a flame and a flame rod, and circuits for determining a condition of a flame and a flame rod. The flame rod analysis system comprises energy storage connectable to a flame rod, a pulsed source connected to the energy storage and providing a voltage pulse or a current pulse, and a buffer to allow a processor to measure a buffered voltage at various time points. Flame rod analysis systems can distinguish between various flame conditions (no flame, low flame, etc.) while simultaneously characterizing the condition of the flame rod (shorted to ground, contaminated, etc.). Some flame rod analysis systems can directly measure the resistance of the flame rod.
摘要翻译： 火焰棒分析系统，用于确定火焰和火焰棒的状况的方法以及用于确定火焰和火焰条的状态的电路。 火焰棒分析系统包括可连接到火焰棒的能量存储器，连接到能量存储器并提供电压脉冲或电流脉冲的脉冲源，以及缓冲器，以允许处理器在各个时间点测量缓冲电压。 火焰杆分析系统可以区分各种火焰条件（无火焰，低火焰等），同时表征火焰棒的状况（短路到地面，污染等）。 一些火焰棒分析系统可以直接测量火焰棒的阻力。
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公开(公告)号：US10274353B2
公开(公告)日：2019-04-30
申请号：US15466517
申请日：2017-03-22
摘要： A flow sensor includes a tube having a tube wall with a window in it. A thermally-conductive base covers the window and has mounted to it a heater and a sensor of a hot film anemometer flow sensor. The base is sealed to the window to resist leakage of fluid from the flow path through the window under normal operating pressures. The hot film anemometer flow sensor is used to measure fluid flow through the tube.
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公开(公告)号：US20190178692A1
公开(公告)日：2019-06-13
申请号：US16279813
申请日：2019-02-19
CPC分类号： G01F1/684 , G01F1/692 , G01F1/696 , G01F15/18 , G01F15/185
摘要： A method for determining flow velocity in a flow path, comprises defining a flow path for a fluid, the fluid flowing in a downstream direction that is opposite an upstream direction. A thermally-conductive element is exposed to the flow path. A known amount of heat is applied to a first portion of the thermally-conductive element and a sensed temperature is sensed at a second portion of the thermally-conductive element downstream of the first portion. The known amount of heat and the sensed temperature are used to determine a flow velocity of the fluid in the flow path.
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