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    • 1. 发明专利
    • Gas detection device
    • 气体检测装置
    • JP2014178198A
    • 2014-09-25
    • JP2013052227
    • 2013-03-14
    • Fuji Electric Co Ltd富士電機株式会社Osaka Gas Co Ltd大阪瓦斯株式会社
    • KOBAYASHI MAKOTOSUZUKI TAKUYAOKAMURA MAKOTONAKAJIMA TAKASHINONAKA ATSUSHIONISHI HISAONAKAYAMA TOSHIROSUEMITSU MASAHIRO
    • G01N27/12
    • PROBLEM TO BE SOLVED: To provide a gas detection device capable of maintaining reliability over a long period of time.SOLUTION: A gas detection device comprises: a sensor element having a gas detection layer of which electric characteristics are changed by coming into contact with a detection object gas and a heater layer capable of heating the gas detection layer; a heater control part for controlling electric conduction to the heater layer in a predetermined period so as to change the temperature of the gas detection layer; and a gas detection part for detecting the detection object gas on the basis of the electric characteristics of the gas detection layer. The gas detection device is configured in such a manner that: the gas detection part detects the detection object gas in a gas detection electric conduction state in which the electric conduction is carried out to the heater layer in a predetermined period through control by the heater control part; and preliminary electric conduction is carried out to the heater layer through control by the heater control part so that, before detecting the detection object gas in the gas detection part, the temperature of the gas detection layer is 100°C or higher and is lower than that of the gas detection layer in the gas detection electric conduction state.
    • 要解决的问题:提供一种能够长时间保持可靠性的气体检测装置。解决方案:一种气体检测装置,包括:具有气体检测层的传感器元件,其电特性通过与 检测对象气体和能够加热气体检测层的加热器层; 加热器控制部件,用于在预定时间段内控制对加热器层的电导率,以改变气体检测层的温度; 以及气体检测部,其基于气体检测层的电特性检测检测对象气体。 气体检测装置构成为:气体检测部通过加热器控制的控制,在预定期间内对通过加热器层进行导通的气体检测导通状态的检测对象气体进行检测 部分; 并且通过加热器控制部的控制对加热器层进行预导电,使得在检测气体检测部中的检测对象气体之前,气体检测层的温度为100℃以上且低于 气体检测层的气体检测导电状态。
    • 2. 发明专利
    • Gas detection device
    • 气体检测装置
    • JP2013061227A
    • 2013-04-04
    • JP2011199535
    • 2011-09-13
    • Fuji Electric Co Ltd富士電機株式会社Osaka Gas Co Ltd大阪瓦斯株式会社
    • OKAMURA MAKOTOSUZUKI TAKUYAKOBAYASHI MAKOTOONISHI HISAONAKAYAMA TOSHIRONONAKA ATSUSHINAKAJIMA TAKASHI
    • G01N27/12
    • PROBLEM TO BE SOLVED: To provide a gas detection technique that enables reliability to be maintained through preventive maintenance.SOLUTION: In a gas detection device 100, the density of a gas in an atmosphere is detected by means of heating due to the intermittent energization of a heater layer 3 in a sensor element 10 housed in a filter package 110 and detecting an electrical resistance value R due to the energization of a sensing layer 7. And, in the device, there is included gas type determining means 23 for determining whether or not an interference gas other than a gas of a detection object exists. If the interference gas is detected, when an electrical resistance value R falls below a threshold R1 greater than a threshold R2 for detecting the detection object gas, it is determined that the filter package 110 is deteriorated and an alarm is output, so that the preventive maintenance of the gas detection device 100 is realized.
    • 要解决的问题:提供通过预防性维护使得可靠性得以维持的气体检测技术。 解决方案:在气体检测装置100中,由于在容纳在过滤器组件110中的传感器元件10中的加热器层3间歇地通电,通过加热来检测气氛中的气体的密度, 由于感应层7通电而导致的电阻值R.在该装置中,存在用于判定是否存在检测对象气体以外的干扰气体的气体类型确定单元23。 如果检测到干扰气体,则当电阻值R低于用于检测检测对象气体的阈值R2以下的阈值R1以下时,确定过滤器组件110劣化并且输出报警, 实现了气体检测装置100的维护。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Gas detector
    • 气体检测器
    • JP2013190232A
    • 2013-09-26
    • JP2012054983
    • 2012-03-12
    • Fuji Electric Co Ltd富士電機株式会社Osaka Gas Co Ltd大阪瓦斯株式会社
    • OKAMURA MAKOTOSUZUKI TAKUYAKOBAYASHI MAKOTOONISHI HISAONAKAYAMA TOSHIRONONAKA ATSUSHINAKAJIMA TAKASHI
    • G01N27/12
    • PROBLEM TO BE SOLVED: To diagnose deterioration of a filter package before functions of a gas detector are lost and to perform preventive maintenance of the gas detector.SOLUTION: A gas detector 500 comprises a sensor element 50, energization drive means 60, gas detecting means 61, different-kind-of-gas determination means 62, and so on. The sensor element 50 is constituted of a silicon wafer 51 having a thermal oxidation film attached on both sides, on which a SiN(silicon nitride) film and a SiO(silica) film are successively formed as a support layer/heat insulation layer 52 of a diaphragm structure. After that, a heater layer 53 made of a Ni-Cr alloy and a SiOinsulation layer 54 are successively formed by a sputtering method. Then, a bonding layer 55, sensing layer electrodes 56, and a sensing layer 57 are formed thereon. Furthermore, a gas sensing layer 59 for sensing gas is formed as a film, and the gas sensing layer 59 is constituted of a sensing layer 57 of SnO(tin oxide) doped with Sb (antimony) and a selective combustion layer 58 constituted of a sintered material in which Pd (palladium) as a catalyst is carried by Al2O3 (alumina).
    • 要解决的问题:在气体检测器的功能丧失之前,对过滤器组件的劣化进行诊断,并进行气体检测器的预防性维护。解决方案:气体检测器500包括传感器元件50,通电驱动装置60,气体检测装置 61,不同种类的气体测定装置62等。 传感器元件50由两面附着有热氧化膜的硅晶片51构成,其上依次形成SiN(氮化硅)膜和SiO(二氧化硅)膜作为支撑层/隔热层52 隔膜结构。 之后,通过溅射法依次形成由Ni-Cr合金和SiO绝缘层54构成的加热层53。 然后,在其上形成接合层55,感测层电极56和感测层57。 此外,用于感测气体的气体感测层59形成为膜,并且气体感测层59由掺杂有Sb(锑)的SnO(氧化锡)的感测层57和由Sb(锑)构成的选择性燃烧层58构成。 作为催化剂的Pd(钯)由Al2O3(氧化铝)负载的烧结材料。
    • 4. 发明专利
    • Thin film type gas sensor, and checkup method for the same
    • 薄膜式气体传感器及其检测方法
    • JP2014178199A
    • 2014-09-25
    • JP2013052228
    • 2013-03-14
    • Fuji Electric Co Ltd富士電機株式会社Osaka Gas Co Ltd大阪瓦斯株式会社
    • KOBAYASHI MAKOTOSUZUKI TAKUYAOKAMURA MAKOTONAKAJIMA TAKASHINONAKA ATSUSHIONISHI HISAONAKAYAMA TOSHIROSUEMITSU MASAHIRO
    • G01N27/12
    • PROBLEM TO BE SOLVED: To provide a thin film type gas sensor that can maintain its detecting performance level for the gas to be checked over a long period and a checkup method enabling such a thin film type gas sensor to be selected in an early stage of the product.SOLUTION: A thin film type gas sensor that is equipped with a sensor element having a gas detecting layer whose electric characteristics change when coming into contact with gas to be detected and a heater layer that can heat the gas detecting layer, and makes the gas to be detected be detected on the basis of the resistance level of the gas detection layer heated by the heater layer and whose prescribed indicator value calculated by using the resistance level R of the gas detecting layer and the concentration X of the gas to be detected measured with the thin film type gas sensor in its initial state satisfies a preset standard; and a thin film type gas sensor checkup method by which whether or not the gas sensor is satisfactory on the basis of this standard.
    • 要解决的问题:提供能够长时间保持对待检查气体的检测性能水平的薄膜型气体传感器,以及能够在早期阶段选择这种薄膜型气体传感器的检查方法 该产品。一种薄膜式气体传感器,其配备有具有气体检测层的传感器元件,该气体检测层的电特性在与要检测的气体接触时变化,加热层可加热气体检测层,并且 基于由加热器层加热的气体检测层的电阻等级来检测要检测的气体,并且通过使用气体检测层的电阻水平R和气体浓度X计算出的规定指标值 在初始状态下用薄膜型气体传感器测量的检测满足预设标准; 以及基于该标准的气体传感器是否令人满意的薄膜式气体传感器检查方法。
    • 5. 发明专利
    • Thin film gas sensor
    • 薄膜气体传感器
    • JP2012163437A
    • 2012-08-30
    • JP2011024068
    • 2011-02-07
    • Fuji Electric Co LtdOsaka Gas Co Ltd大阪瓦斯株式会社富士電機株式会社
    • SUZUKI TAKUYANARITA MASATAKAKOBAYASHI MAKOTOISHIKAWA NORIAKIONISHI HISAONAKAYAMA TOSHIRONONAKA ATSUSHINAKAJIMA TAKASHI
    • G01N27/12
    • PROBLEM TO BE SOLVED: To provide a thin film gas sensor which comprises a sufficient mechanical strength and is stable and highly reliable.SOLUTION: A thin film gas sensor is provided which includes a gas sensing layer formed on an electric insulating layer. The gas sensing layer includes a pair of sensing electrode layers formed on the electric insulating layer, a sensing layer which is formed to partially cover the pair of sensing electrode layers while being spread over both the pair of sensing electrode layers, and a selective combustion layer which is formed to cover the sensing electrode layers and the sensing layer. A particle size of binders contained in the selective combustion layer is smaller than that of SnOconstituting the sensing layer and that of a metal oxide constituting the selective combustion layer.
    • 要解决的问题:提供一种薄膜气体传感器,其包括足够的机械强度并且是稳定和高度可靠的。 解决方案:提供一种薄膜气体传感器,其包括形成在电绝缘层上的气体感测层。 气体感测层包括形成在电绝缘层上的一对感测电极层,感测层,其形成为部分地覆盖一对感测电极层,同时分布在一对感测电极层上,以及选择性燃烧层 其形成为覆盖感测电极层和感测层。 包含在选择性燃烧层中的粘合剂的粒度小于构成感测层的SnO 2 和构成选择性燃烧层的金属氧化物的粒度。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • ガス検知装置及びガス検知方法
    • 气体检测器和气体检测方法
    • JP2015045546A
    • 2015-03-12
    • JP2013176219
    • 2013-08-28
    • 富士電機株式会社Fuji Electric Co Ltd大阪瓦斯株式会社Osaka Gas Co Ltd
    • OKAMURA MAKOTOSUZUKI TAKUYAKOBAYASHI MAKOTONAKAJIMA TAKASHINONAKA ATSUSHIONISHI HISAO
    • G01N27/12
    • 【課題】温度や湿度による影響を排除し、より高精度な検知を実現するガス検知装置、および、ガス検知方法を提供する。【解決手段】ヒータ層駆動部22を駆動してヒータ層がガス感知層を加熱して検出可能状態とし、ガス検知部23からの出力に基づいてガス濃度を検知し、ヒータ層抵抗検知部24からのヒータ層抵抗値を読み込んでガス感知層周囲の温度を検知し、ヒータ層抵抗検知部24からのヒータ層抵抗値を読み込んでヒータオン後のヒータ層抵抗値の昇温特性の変化に基づいてガス感知層周囲の湿度を算出し、算出した温度および湿度に基づいて補正値を算出し、ガス濃度に対して補正値を用いて補正し、補正されたガス濃度によりガスの有無を判定するガス検知装置またはガス検知方法とした。【選択図】図1
    • 要解决的问题:提供一种用于消除由于温度和湿度引起的影响的气体检测器和气体检测方法,并且以更高的精度实现检测。解决方案:提供一种气体检测器或气体检测方法,包括以下步骤: 加热器层驱动单元22,使得加热器层加热气体感测层以将其置于可检测状态,并且基于来自气体检测单元23的输出检测气体浓度; 从加热器层电阻检测单元24读取加热器层电阻值,并检测气体感测层周围的温度; 从加热器层电阻检测单元24读取加热器层电阻值,并基于加热器加电后的加热器层电阻值的升温特性的变化计算气体感测层周围的湿度; 基于所计算的温度和湿度计算校正值; 使用校正值校正气体浓度; 以及从校正的气体浓度确定气体的存在。
    • 7. 发明专利
    • Roll mill
    • 滚子铣刀
    • JP2012061405A
    • 2012-03-29
    • JP2010206971
    • 2010-09-15
    • Fuji Electric Co Ltd富士電機株式会社
    • ISHIKAWA NORIAKISUZUKI TAKUYANARITA MASATAKAKOBAYASHI MAKOTO
    • B02C4/28
    • PROBLEM TO BE SOLVED: To provide a roll mill capable of forming a high quality raw material having optimum paste-like viscosity even when kneading and dispersion processing is carried out for a long time.SOLUTION: The roll mill carries out the kneading and dispersion processing by feeding a paste-like raw material 23 in which a powder material and solvent are mixed between a pair of rolls 10, 11 that are adjacently arranged in axis-parallel. This roll mill includes a casing 13 storing the pair of the rolls and holding air-tightness of a storage space 14 so that the surrounding of the rolls is under a certain atmosphere and a purge means for purging the atmosphere of the storage space in the casing with the vapor atmosphere of the solvent. The purge means includes an exhaust gas path 15 communicated between the storage space and the outside air while interposing an exhaust gas shut-off valve 16 and supply paths 18, 26 communicated between the storage space and a solvent vapor supply means arranged outside while interposing a vapor shut-off valve 19.
    • 待解决的问题:即使长时间进行捏合分散处理,也可提供能够形成具有最佳糊状粘度的优质原料的辊磨机。 解决方案:辊磨机通过将在其中相互排列的一对辊10,11之间混合有粉末材料和溶剂的糊状原料23进行捏合和分散处理。 该辊磨机包括存储一对辊并保持储存空间14的气密性的壳体13,使得辊的周围处于一定的气氛下,并且用于吹扫壳体中的储存空间的气氛的净化装置 与溶剂的蒸气气氛。 净化装置包括在存储空间与外部空气之间连通的排气通路15,同时插入废气截止阀16和在存储空间与布置在外部的溶剂蒸气供给装置之间连通的供给路径18,26, 蒸气截止阀19.版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • 薄膜式ガスセンサ及びその製造方法
    • 薄膜式气体传感器及其制造方法
    • JP2014235083A
    • 2014-12-15
    • JP2013116822
    • 2013-06-03
    • 富士電機株式会社Fuji Electric Co Ltd
    • NARITA MASATAKASUZUKI TAKUYAKOBAYASHI MAKOTOOKAMURA MAKOTOFURUTA TOSHITAKA
    • G01N27/12
    • 【課題】シンプルな構造を有し、かつ5年に渡る長期間にて信頼性を維持できる薄膜式ガスセンサ及びその製造方法を提供する。【解決手段】電気絶縁層上に配置され、検知対象ガスとの接触により電気的特性が変化し、かつSnO2から成る感知層と、該感知層上に積層され、かつPtをドープしたSnO2から成る1つの触媒層と、前記感知層及び前記1つの触媒層を覆うように前記電気絶縁層上に配置され、かつ触媒を添加した多孔質体から構成される選択燃焼層とを備え、前記1つの触媒層では、Ptの原子数(N1)とSnの原子数(N2)との比であるPt/Sn原子組成比(N1/N2)が0.22以上となっている、薄膜式ガスセンサ及びその製造方法。【選択図】図1
    • 要解决的问题:提供一种具有简单结构并可长期保持可靠性,即五年的薄膜型气体传感器,并提供一种制造薄膜型气体传感器的方法。解决方案:薄 薄膜式气体传感器包括:敏感层,其设置在电绝缘层上并由SnO 2构成,其电特性通过与检测对象气体的接触而变化; 一层催化剂层,堆叠在敏感层上,由Pt SnO掺杂制成; 以及选择性燃烧层,其设置在所述电绝缘层上以覆盖所述敏感层和所述一个催化剂层,并且由添加有催化剂的多孔体形成。 在一个催化剂层中,Pt原子序数(N1)与Sn原子数(N 2)的Pt / Sn原子组成比(N1 / N2)为0.22以上。 还提供了制造薄膜型气体传感器的方法。
    • 10. 发明专利
    • Roll mill
    • 滚子铣刀
    • JP2012024680A
    • 2012-02-09
    • JP2010164655
    • 2010-07-22
    • Fuji Electric Co Ltd富士電機株式会社
    • ISHIKAWA NORIAKISUZUKI TAKUYANARITA MASATAKAKOBAYASHI MAKOTO
    • B02C4/04B01F13/00B02C4/28
    • PROBLEM TO BE SOLVED: To provide a roll mill, capable of preventing raw material, which rises along the contact lateral surface of a pair of weir plates arranged between a pair of rollers that are adjacently arranged, from stagnating, and capable of forming high-quality material.SOLUTION: In the roll mill, a plurality of rollers 6, 7 are adjacently arranged axially in parallel, the both ends of a space between the pair of rollers are closed with the pair of weir plates 10, 10, and the raw material M is input between the pair of rollers from the space between the pair of weir plates, to perform mixing and dispersion processing. A stagnation prevention part 17, for preventing the raw material from stagnating along the contact lateral surface, is provided on the contact lateral surface 16 of the pair of weir plates, with which the raw material comes into contact.
    • 要解决的问题:提供一种辊磨机,其能够防止沿着布置在相邻布置的一对辊之间的一对堰板的接触侧面上升的原料停滞,并能够 形成优质材料。 解决方案:在辊磨机中,多个辊6,7平行地轴向相邻地布置,一对辊之间的空间的两端用一对堰板10,10和原料 材料M从一对堰板之间的空间输入到一对辊之间,以进行混合和分散处理。 在原材料接触的一对堰板的接触侧面16上设置有用于防止原料沿着接触侧面停滞的防止停止部17。 版权所有(C)2012,JPO&INPIT