公开(公告)号：US20110259079A1

公开(公告)日：2011-10-27

申请号：US13094036

申请日：2011-04-26

申请人： Eriko Maeda ,  Takashi Sawada

发明人： Eriko Maeda ,  Takashi Sawada

IPC分类号： G01M15/10

CPC分类号： G01N15/0656 ,  G01N27/041

摘要： A gas sensor is capable of detecting a concentration of PM contained in an exhaust gas emitted from a diesel engine. The gas sensor is comprised of a ceramic substrate and detection parts which are formed on the ceramic substrate with resistance parts. A resistance value of each of the resistance parts is changed on the basis of the quantity of conductive particulate matter captured by and accumulated on the detection parts. The detection parts have a different detection range. A part of the detection range of each of the detection parts is overlapped together. The concentration of PM contained in the target detection gas is detected on the basis of the change of the resistance value of the resistance parts.

摘要翻译： 气体传感器能够检测从柴油发动机排出的废气中所含的PM的浓度。 气体传感器由陶瓷基板和形成在具有电阻部件的陶瓷基板上形成的检测部件组成。 每个电阻部分的电阻值基于由检测部件捕获并累积在其上的导电性颗粒物质的量而改变。 检测部件具有不同的检测范围。 每个检测部分的检测范围的一部分重叠在一起。 基于电阻部的电阻值的变化来检测包含在目标检测气体中的PM的浓度。

公开(公告)号：US09574512B2

公开(公告)日：2017-02-21

申请号：US13451706

申请日：2012-04-20

申请人： Eriko Maeda ,  Takehito Kimata

发明人： Eriko Maeda ,  Takehito Kimata

IPC分类号： F02D41/14 ,  F02D41/24 ,  G01N15/06 ,  G01N35/00

CPC分类号： F02D41/1466 ,  F02D41/2432 ,  F02D41/2474 ,  G01N15/0656 ,  G01N35/00693

摘要： An apparatus for detecting particulate and a correction method of the apparatus for detecting particulate matter that detects particulate matter within a gas to be measured are provided. The correction method corrects the individual differences inevitably occurring during the manufacturing process of particulate matter detection sensors. The apparatus for detecting particulate matter includes an applied voltage correction means. The applied voltage correction means applies correction information acquired by the correction method to detection control.

摘要翻译： 提供了一种用于检测微粒的装置和用于检测检测待测气体中的颗粒物质的颗粒物的检测装置的校正方法。 校正方法校正了在颗粒物检测传感器的制造过程中不可避免地发生的个体差异。 用于检测颗粒物质的装置包括施加的电压校正装置。 施加电压校正装置将通过校正方法获取的校正信息应用于检测控制。

公开(公告)号：US20120151992A1

公开(公告)日：2012-06-21

申请号：US13326655

申请日：2011-12-15

申请人： Toshihiko HARADA ,  Satoshi Nakamura ,  Shinya Teranishi ,  Eriko Maeda

发明人： Toshihiko HARADA ,  Satoshi Nakamura ,  Shinya Teranishi ,  Eriko Maeda

IPC分类号： G01M15/10

CPC分类号： G01N15/0656 ,  F01N2560/05

摘要： In a PM detection sensor S having a PM sensor element 1 installed in an exhaust-gas pipe of an engine E/G, PM detection electrodes are placed in detection spaces in slits, respectively, formed in an insulation substrate. In the insulation substrate, one slit is embedded between an electric field generating electrode and a common electric field generating electrode. The other slit is embedded between an electric field generating electrode and the common electric field generating electrode. The same magnitude of an electric field is generated between the detection spaces when electric power is supplied to the electric field generating electrodes. An average value of sensor outputs transferred from the PM detection electrode is used as a sensor output of the PM sensor element.

摘要翻译： 在安装在发动机E / G的排气管中的PM传感器元件1的PM检测传感器S中，分别在形成于绝缘基板的狭缝的检测空间内配置PM检测电极。 在绝缘基板中，在电场产生电极和公共电场产生电极之间嵌入一个狭缝。 另一个狭缝嵌入在电场产生电极和公共电场产生电极之间。 当向电场产生电极供电时，在检测空间之间产生相同幅度的电场。 作为PM传感器元件的传感器输出，使用从PM检测电极传送的传感器输出的平均值。

公开(公告)号：US08707761B2

公开(公告)日：2014-04-29

申请号：US13282687

申请日：2011-10-27

申请人： Eriko Maeda ,  Takehito Kimata ,  Yushi Fukuda

发明人： Eriko Maeda ,  Takehito Kimata ,  Yushi Fukuda

IPC分类号： G01N37/00 ,  G01N7/00

CPC分类号： G01N15/0656

摘要： A shielding part is formed on a detection part in a particulate matter detection element. The detection part has a pair of detection electrodes formed in a comb structure. A shielding layer is made of heat insulating material and formed on the detection part in order to shield a predetermined area having non-uniform electric field intensity. An area having uniform electric field intensity on the detection part is exposed only to exhaust gas as target detection gas when a predetermined voltage is supplied between the detection electrodes in order to detect electric characteristics of the detection part. This structure prevents the area other than the area having the uniform electric field intensity on the detection part from being exposed to the exhaust gas.

摘要翻译： 在颗粒物检测元件的检测部上形成有屏蔽部。 检测部具有形成为梳状结构的一对检测电极。 屏蔽层由绝热材料制成并形成在检测部分上，以屏蔽具有不均匀电场强度的预定区域。 为了检测检测部的电特性，在检测电极之间提供预定电压时，检测部分上的均匀电场强度的区域仅露出作为目标检测气体的排气。 该结构防止在检测部上具有均匀电场强度的区域以外的区域暴露于废气。