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    • 1. 发明专利
    • ガスセンサ素子およびガスセンサ
    • 气体传感器元件和气体传感器
    • JP2015030641A
    • 2015-02-16
    • JP2013161704
    • 2013-08-02
    • 株式会社日本自動車部品総合研究所Nippon Soken Inc株式会社デンソーDenso Corp
    • HARADA TOSHIHIKOYASUDA ETSUROMAKINO TASUKEYAGI KAZUKI
    • C04B35/48G01N27/409
    • 【課題】焼結性向上と高電気抵抗化の抑制とを両立させることが可能なジルコニア焼結体を固体電解質として用いたガスセンサ素子、またこれを有するガスセンサを提供する。【解決手段】ガスセンサ素子1は、部分安定化または安定化ジルコニア焼結体を固体電解質として用いる。部分安定化または安定化ジルコニア焼結体には、15〜35mol%ZrO2−85〜65mol%Nb2O5の化学組成を有する複合酸化物が添加されている。部分安定化または安定化ジルコニアと複合酸化物との合計100質量部に対する複合酸化物の添加量は、0.1〜5質量部の範囲内とすることができる。ガスセンサ3は、ガスセンサ素子1を有している。【選択図】図1
    • 要解决的问题:提供一种使用能够实现烧结性提高和抑制电阻高度增加的氧化锆烧结体作为固体电解质的气体传感器元件,并提供包括其的气体传感器。解决方案: 气体传感器元件1包括用作​​固体电解质的部分稳定或稳定的氧化锆烧结体。 在部分稳定化或稳定化的氧化锆烧结体中,添加组成为ZrO 15〜35mol%,NbO为85〜65mol%的复合氧化物。 相对于部分稳定化或稳定化的氧化锆和复合氧化物的总量的100重量份,复合氧化物的添加量可以在0.1-5质量度的范围内。 气体传感器3包​​括气体传感器元件1。
    • 2. 发明专利
    • Particulate matter detection sensor
    • 颗粒物检测传感器
    • JP2013024677A
    • 2013-02-04
    • JP2011158719
    • 2011-07-20
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • NAKAMURA SATOSHIHARADA TOSHIHIKOMIZUTANI KEIGOKIMATA TAKEHITO
    • G01N27/416G01N15/06G01N27/406
    • G01N27/407G01N15/0656
    • PROBLEM TO BE SOLVED: To provide a particulate matter detection sensor capable of accurately detecting a PM discharge amount even when the PM discharge amount in an idle operation, etc. is low and method for controlling the same.SOLUTION: In a particulate matter detection sensor 1 which consumes PM by an electrochemical reaction, detects variation of the PM by any of a current value, a voltage value or a power value, and calculates a PM amount in gas 200 to be measured, power control means 14 for controlling applied voltage, current or power, and integration means 142 for detecting current flowing to the sensor in application of voltage, current or power, and integrating the current are provided, after restricting energization to a particulate matter detection sensor 10 for predetermined energization restriction time Twhen it is determined as low PM amount discharge time, energization is restarted, the current flowing to the particulate matter detection sensor 10 is integrated for predetermined integration time T, a saturation current value I(=I/(T+T)) in the low PM amount discharge is calculated from relation between an integrated current value I, the energization restriction time Tand the integration time T.
    • 解决问题的方案:即使在怠速运转等中的PM排出量低的情况下,也能够提供能够精确地检测PM排出量的颗粒物质检测传感器及其控制方法。 解决方案:在通过电化学反应消耗PM的颗粒物质检测传感器1中,通过电流值,电压值或功率值中的任何一个来检测PM的变化,并将气体200中的PM量计算为 提供用于控制施加的电压,电流或功率的功率控制装置14,以及用于在施加电压,电流或功率时检测流向传感器的电流并积分电流的积分装置142,在限制通电到颗粒物质检测之后 当确定为低PM量放电时间时,预定通电限制时间T 1 的传感器10通电,重新启动通电,流向颗粒物检测传感器10的电流被积分预定 积分时间T 2 ,饱和电流值I SAT (= I SUM /(T 1 + T 2 )) 通过集成电流值I SUM ,通电限制时间T 1 与积分时间T 2 。 版权所有(C)2013,JPO&INPIT
    • 4. 发明专利
    • Particulate matter detector
    • 颗粒物检测器
    • JP2012168143A
    • 2012-09-06
    • JP2011031625
    • 2011-02-17
    • Nippon Soken IncDenso Corp株式会社デンソー株式会社日本自動車部品総合研究所
    • NAKAMURA SATOSHIHARADA TOSHIHIKOMIZUTANI KEIGOKIMATA TAKEHITO
    • G01N27/02F01N3/00
    • PROBLEM TO BE SOLVED: To provide a particulate matter detector for detecting particulate matter in a gas to be measured, that ensures high reliability by reducing a measurement error caused by coarse particles while removing influence caused by the difference in a placing direction of a detection element and dealing with the change in flow velocity of the gas to be measured.SOLUTION: A particulate matter detector has a measured gas introduction hole 301 in a base end side face 300 of a cover body 3 formed into a nearly bottomed cylinder covering at least a detection element 1, and a measured gas extraction hole 311 in a bottom 310, so as to form a flow that moves a measured gas in the direction of the longitudinal axis of the detection element 1. In addition, a measured gas passage way 141 is defined in the detection element 1; one end 151 of the passage way opens, on the base end side of the detection element, in a direction perpendicular to the direction in which the measured gas advances; the other end 142 at the tip end of the detection element 1 opens in a direction facing the measured gas extraction hole 311; and a pair of detection electrodes 12 and 13 for detecting an electrical characteristic varying with the amount of particulate matter accumulating in the measured gas passage way 141 is formed.
    • 要解决的问题:提供一种用于检测待测气体中的颗粒物质的颗粒物质检测器,其通过减少由粗颗粒引起的测量误差来确保高可靠性,同时消除由放置方向的差异引起的影响 检测元件,并处理待测气体的流速变化。 解决方案:颗粒物检测器在形成为至少覆盖检测元件1的近底圆筒的盖体3的基端侧面300中具有测量气体导入孔301,并且测量气体引出孔311 底部310,以形成沿检测元件1的纵轴方向移动被测气体的流量。此外,在检测元件1中限定测定气体通路141; 通道的一端151在检测元件的基端侧沿与测量气体前进的方向垂直的方向打开; 检测元件1的前端的另一端142朝向与被测气体取出孔311对向的方向开口。 并且形成一对检测电极12和13,用于检测随测量气体通道141中积聚的颗粒物质量而变化的电特性。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Particulate matter detection sensor
    • 颗粒物检测传感器
    • JP2012127907A
    • 2012-07-05
    • JP2010281629
    • 2010-12-17
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • HARADA TOSHIHIKONAKAMURA SATOSHITERANISHI SHINYAMAEDA ERIKO
    • G01N27/04F01N3/02G01N15/06
    • G01N15/0656
    • PROBLEM TO BE SOLVED: To prevent measurement difference by coarse particles by improving classification performance and quickly detecting failures or the like of a DPF (diesel particulate filter) with high detection precision at low costs in a particulate matter detection sensor of an electrical resistance system used for PM detection in exhaust gases of an internal-combustion engine.SOLUTION: A sensing element part 1 of a PM sensor S installed in an exhaust tube EX of an engine E/G places two pairs of detection electrodes 3, 4 with insides of two slits 20a, 20b provided for an insulating base 10 as measurement spaces 2a, 2b, and embeds a pair of electric field application electrodes 52, 53 on both sides of the slit 20a and a pair of electric field application electrodes 52, 53 on both sides of the slit 20b. Thus, there are provided two pairs of electric field application electrodes having a common electric field application electrode 53 between the slits 20a and 20b. A unique electric field is generated in the measurement spaces 2a, 2b by the electric field application electrodes 51, 52, PM detection results of the two pairs of detection electrodes 3, 4 are averaged, and made to be sensor output, so that output variation becomes small.
    • 要解决的问题:为了防止粗粒子的测量差异,通过在电气的颗粒物质检测传感器中以低成本提高分级性能并快速检测具有高检测精度的DPF(柴油微粒过滤器)的故障等, 用于内燃机排气中PM检测的电阻系统。 解决方案:安装在发动机E / G的排气管EX中的PM传感器S的感测元件部分1将两对检测电极3,4与设置在绝缘基座10上的两个狭缝20a,20b的内侧 作为测量空间2a,2b,在狭缝20a的两侧嵌入一对电场施加电极52,53,在狭缝20b的两侧嵌入一对电场施加电极52,53。 因此,提供两对电场施加电极,其在狭缝20a和20b之间具有公共电场施加电极53。 通过电场施加电极51,52在测量空间2a,2b中产生独特的电场,将两对检测电极3,4的PM检测结果平均化,并将其作为传感器输出,使得输出变化 变小 版权所有(C)2012,JPO&INPIT