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    • 12. 发明专利
    • Gas sensor
    • 气体传感器
    • JP2003075404A
    • 2003-03-12
    • JP2001265756
    • 2001-09-03
    • Ngk Spark Plug Co Ltd日本特殊陶業株式会社
    • KONDO TOMONORIKITANOYA SHOJINADANAMI NORIHIKOWATANABE MASAYAISHIDA NOBORU
    • G01N27/416H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a gas sensor by which the concentration of a gas such as the concentration of e.g. hydrogen gas or the like can be measured precisely. SOLUTION: In the hydrogen gas sensor, a first electrode 3 is installed on one face of a proton conduction layer 1, a second electrode 5 and a reference electrode 7 are installed on the other face of the layer 1 so as to face the first electrode 3, and they are supported in a support 9 composed of a first support 9a and a second support 9b. A diffusion-controlled part 19 by which an ambient atmosphere communicates with a first recess 11a (consequently, the first electrode 3) is installed at the first support 9a in the support 9. That is to say, the part 19 is a small hole which introduces a fuel gas (consequently, the contained hydrogen gas) as a gas to be measured to the side of the first electrode 3 and which controls its diffusion, and it is installed so as to be situated in a direction separated from the reference electrode 7 from the end part T on the side of the reference electrode 7 of the second electrode 5.
    • 要解决的问题:提供一种气体传感器,通过该气体传感器,气体的浓度例如浓度等。 可以精确地测量氢气等。 解决方案:在氢气传感器中,第一电极3安装在质子传导层1的一个面上,第二电极5和参考电极7安装在层1的另一面上,以面对第一电极 并且它们被支撑在由第一支撑件9a和第二支撑件9b组成的支撑件9中。 与第一凹部11a(从而第一电极3)连通的扩散控制部19安装在支撑体9的第一支撑9a上。也就是说,部分19是小孔, 将作为被测量气体的燃料气体(因此,所含有的氢气)引入到第一电极3的一侧并控制其扩散,并且安装成位于与参考电极7分离的方向 从第二电极5的参考电极7侧的端部T开始。
    • 13. 发明专利
    • HUMIDITY SENSOR
    • JP2002116172A
    • 2002-04-19
    • JP2000309169
    • 2000-10-10
    • NGK SPARK PLUG CO
    • SUGAYA SATOSHIYAMADA TETSUOISHIDA NOBORU
    • G01N27/04G01N27/12
    • PROBLEM TO BE SOLVED: To provide a humidity sensor having an insulating substrate and a humidity sensing layer sufficiently closely stuck thereto, having high accuracy, and having stable performance maintained over a long period. SOLUTION: This humidity sensor is equipped with the insulating substrate made of alumina, etc., a lower electrode made of a noble metal, the humidity sensing layer made of a porous material mainly composed of alumina and compounded with a prescribed amount of titania and tin oxide, and an upper electrode made of a porous material of noble metal. These are layered in order, thus forming the sensor. By joining the upper electrode to the sensing layer and to a part of the insulating substrate, this sensor has excellent durability with the sensing layer sufficiently stuck to the insulating substrate. Preferably, the lower electrode is made of a porous material. More preferably, both the lower and upper electrodes are made of platinum. Further, it is preferable that a heater and a resistance temperature sensor are disposed within the insulating substrate and they are disposed just under the sensing layer within the insulating substrate.
    • 20. 发明专利
    • DEVICE FOR INSPECTING PLYWOOD MANUFACTURING
    • JP2000283727A
    • 2000-10-13
    • JP9184699
    • 1999-03-31
    • JAPAN RADIO CO LTD
    • TOMITA MASATSUNEISHIDA NOBORU
    • G01B11/02
    • PROBLEM TO BE SOLVED: To accurately inspect by making an optical range finder perform scanning at an angle forward in the direction of advance of a belt conveyer with the passage of time to absorb locational displacements due to transfer by the belt conveyer and measuring the line profile of a cross section orthogonal to the direction of transfer. SOLUTION: A belt conveyer 1 is moved at all times, and an optical range finder moving mechanism 12 makes an optical range finder perform scanning at an angle forward in the direction of advance in synchronization with the movement of the belt conveyer 1 for detecting the line profile of a cross section orthogonal to the direction of transfer. Then in the case that the distance a-b of an optical range finder moving frame 13 is set to be L1, the distance b-c is set to be L2, the distance c-a is set to be L3, and the moving speed of the belt conveyer 1 is set to be S2, the moving speed S1 is S1=(L1×S2)/L2 from L1/S1=L2/S2 to obtain the line profile of a cross section orthogonal to the direction of transfer. Therefore, the data of the moving speed S2 is inputted to a part for computing the moving speed of a range finder to compute the moving speed S1, and the range finer is moved by the moving mechanism 12.