-
公开(公告)号：US09189940B2
公开(公告)日：2015-11-17
申请号：US13667269
申请日：2012-11-02
CPC分类号： G08B17/11 , G01N27/66 , G01R27/2605
摘要： A smoke detection sensor ion chamber has a capacitance and a change in the permittivity of that capacitance dielectric (ionized air in the chamber) may be used to detect the presence of smoke therein. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the ion chamber.
-
公开(公告)号：US09176088B2
公开(公告)日：2015-11-03
申请号：US13667196
申请日：2012-11-02
CPC分类号： G01N27/221 , G01N27/66 , G01R27/2605 , G08B17/11
摘要： A smoke detection sensor ion chamber has a capacitance and a change in the permittivity of that capacitance dielectric (ionized air in the chamber) may be used to detect the presence of smoke therein. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the ion chamber.
摘要翻译： 烟雾检测传感器离子室具有电容并且可以使用该电容电介质（室中的电离空气）的介电常数的变化来检测其中的烟雾的存在。 典型火灾中的烟雾主要由在周围空气中扩散并随火的升高而升高的未燃碳组成。 碳颗粒的介电常数为清洁空气介电常数的约10至15倍。 将离子室中的碳颗粒加入到空气中，通过测量离子室的电容变化来测量介电常数，其电容率变大。
-
公开(公告)号：US20130154670A1
公开(公告)日：2013-06-20
申请号：US13667269
申请日：2012-11-02
IPC分类号： G01N27/22
CPC分类号： G08B17/11 , G01N27/66 , G01R27/2605
摘要： A smoke detection sensor ion chamber has a capacitance and a change in the permittivity of that capacitance dielectric (ionized air in the chamber) may be used to detect the presence of smoke therein. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the ion chamber.
摘要翻译： 烟雾检测传感器离子室具有电容并且可以使用该电容电介质（室中的电离空气）的介电常数的变化来检测其中的烟雾的存在。 典型火灾中的烟雾主要由在周围空气中扩散并随火的升高而升高的未燃碳组成。 碳颗粒的介电常数为清洁空气介电常数的约10至15倍。 将离子室中的碳颗粒加入到空气中，通过测量离子室的电容变化来测量介电常数，其电容率变大。
-
公开(公告)号：US20130154659A1
公开(公告)日：2013-06-20
申请号：US13667165
申请日：2012-11-02
IPC分类号： G01N27/66
CPC分类号： G01N27/66 , G08B17/11 , G08B29/181 , H03M3/30
摘要： A smoke detection sensor ion chamber has a leakage current that is dependent upon the permittivity of the ionized gas (air) in the chamber. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes the permittivity thereof that is large enough to detect by measuring a change in the leakage current of the ion chamber.
摘要翻译： 烟雾检测传感器离子室具有取决于室中的电离气体（空气）的介电常数的泄漏电流。 典型火灾中的烟雾主要由在周围空气中扩散并随火的升高而升高的未燃碳组成。 碳颗粒的介电常数为清洁空气介电常数的约10至15倍。 将离子室中的碳颗粒添加到空气中通过测量离子室的泄漏电流的变化来改变其介电常数，其大到足以检测。
-
公开(公告)号：US09207209B2
公开(公告)日：2015-12-08
申请号：US13667165
申请日：2012-11-02
CPC分类号： G01N27/66 , G08B17/11 , G08B29/181 , H03M3/30
摘要： A smoke detection sensor ion chamber has a leakage current that is dependent upon the permittivity of the ionized gas (air) in the chamber. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes the permittivity thereof that is large enough to detect by measuring a change in the leakage current of the ion chamber.
摘要翻译： 烟雾检测传感器离子室具有取决于室中的电离气体（空气）的介电常数的泄漏电流。 典型火灾中的烟雾主要由在周围空气中扩散并随火的升高而升高的未燃碳组成。 碳颗粒的介电常数为清洁空气介电常数的约10至15倍。 将离子室中的碳颗粒添加到空气中通过测量离子室的泄漏电流的变化来改变其介电常数，其大到足以检测。
-
公开(公告)号：US09035919B2
公开(公告)日：2015-05-19
申请号：US13842869
申请日：2013-03-15
发明人： Benjamin T. Cooke
IPC分类号： G06F3/0354 , G06F3/044
CPC分类号： G06F3/03545 , G06F3/044
摘要： A handheld, stylus-type input device for interfacing with a touch screen having an array of sensor nodes (e.g., a capacitive touch screen) may include a handheld body having a first end, a tip at the first end, an electrode arranged at least partially within the body, and a circuit configured to produce an electrical potential on the electrode to generate an electric field proximate the stylus tip. When the stylus tip is placed in contact with the touch screen, the electric field activates one or more sensor nodes outside of a physical contact area between the tip and the touch screen, producing an effect on the sensor nodes similar to that of a finger or other object having a larger contact area with the touch screen than the stylus, thus providing activation of the touch screen while providing better view of the screen near the point of contact.
摘要翻译： 用于与具有传感器节点阵列（例如，电容式触摸屏）的触摸屏接口的手持式触控笔型输入装置可以包括手持式主体，其具有第一端，第一端的尖端，至少布置的电极 并且配置成在电极上产生电位以在触针尖附近产生电场的电路。 当触针尖端与触摸屏接触时，电场激活在尖端和触摸屏之间的物理接触区域之外的一个或多个传感器节点，对传感器节点产生类似于手指的影响，或者 其他物体具有比触笔更大的触摸屏接触面积，从而提供触摸屏的激活，同时提供更接近接触点的屏幕视图。
-
公开(公告)号：US20140267187A1
公开(公告)日：2014-09-18
申请号：US13842869
申请日：2013-03-15
发明人： Benjamin T. Cooke
IPC分类号： G06F3/0354
CPC分类号： G06F3/03545 , G06F3/044
摘要： A handheld, stylus-type input device for interfacing with a touch screen having an array of sensor nodes (e.g., a capacitive touch screen) may include a handheld body having a first end, a tip at the first end, an electrode arranged at least partially within the body, and a circuit configured to produce an electrical potential on the electrode to generate an electric field proximate the stylus tip. When the stylus tip is placed in contact with the touch screen, the electric field activates one or more sensor nodes outside of a physical contact area between the tip and the touch screen, producing an effect on the sensor nodes similar to that of a finger or other object having a larger contact area with the touch screen than the stylus, thus providing activation of the touch screen while providing better view of the screen near the point of contact.
摘要翻译： 用于与具有传感器节点阵列（例如，电容式触摸屏）的触摸屏接口的手持式触控笔型输入装置可以包括手持式主体，其具有第一端，第一端的尖端，至少布置的电极 并且配置成在电极上产生电位以在触针尖附近产生电场的电路。 当触针尖端与触摸屏接触时，电场激活在尖端和触摸屏之间的物理接触区域之外的一个或多个传感器节点，对类似于手指的传感器节点产生影响， 其他物体具有比触笔更大的触摸屏接触面积，从而提供触摸屏的激活，同时提供更接近接触点的屏幕视图。
-
公开(公告)号：US20130154657A1
公开(公告)日：2013-06-20
申请号：US13667196
申请日：2012-11-02
IPC分类号： G01N27/22
CPC分类号： G01N27/221 , G01N27/66 , G01R27/2605 , G08B17/11
摘要： A smoke detection sensor ion chamber has a capacitance and a change in the permittivity of that capacitance dielectric (ionized air in the chamber) may be used to detect the presence of smoke therein. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes in the permittivity thereof that is large enough to measure by measuring a change in capacitance of the ion chamber.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.011 秒)
