公开(公告)号：US20090013759A1

公开(公告)日：2009-01-15

申请号：US11777575

申请日：2007-07-13

申请人： Aaron Jay Knobloch ,  William Joseph Antel, JR. ,  Mark Greyson Christoforo ,  Robert Michael Orenstein

发明人： Aaron Jay Knobloch ,  William Joseph Antel, JR. ,  Mark Greyson Christoforo ,  Robert Michael Orenstein

IPC分类号： G01N25/00

CPC分类号： G01N27/16 ,  G01N33/225

摘要： A sensor for measuring Wobbe index of a fuel is provided. The sensor includes a substrate and a diaphragm layer. The diaphragm layer includes a first layer having at least one heating element configured to sense energy content in a fuel, wherein the heating element includes a doped poly-silicon carbide that is disposed on the substrate. The diaphragm layer also includes a second layer including an undoped poly-silicon carbide layer configured to prevent oxidation of the first layer. The sensor further includes a sensing layer having a catalyst suspended in a support structure. The sensor also includes a cavity formed under the diaphragm layer and is configured to provide thermal isolation of the heating element.

摘要翻译： 提供了用于测量燃料的沃泊指数的传感器。 传感器包括基板和隔膜层。 隔膜层包括具有至少一个加热元件的第一层，该加热元件构造成感测燃料中的能量含量，其中加热元件包括设置在基底上的掺杂多晶硅碳化物。 隔膜层还包括第二层，其包括被配置为防止第一层的氧化的未掺杂的多晶硅碳化物层。 传感器还包括具有悬浮在支撑结构中的催化剂的感测层。 传感器还包括形成在隔膜层之下的空腔，并被构造成提供加热元件的热​​隔离。