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    • 52. 发明专利
    • Gas alarm
    • 气体报警
    • JP2008152322A
    • 2008-07-03
    • JP2006336638
    • 2006-12-14
    • Yazaki Corp矢崎総業株式会社
    • SASAZAKI KAZUSHIGEMORIYA KAZUYUKITANAKA SHOICHI
    • G08B21/18G01N27/406G01N27/416G08B17/10
    • PROBLEM TO BE SOLVED: To prevent a gas alarm using an electrochemical CO sensor 1 from causing an inadvertent error due to self-diagnosis in a sensor failure equivalent to a disconnected state due to the freezing of water in the CO sensor 1. SOLUTION: A self-diagnostic circuit 30 self-diagnoses the CO sensor 1 upon instructions from a microcomputer 10. A temperature sensor 20 detects the temperature of the CO sensor 1. When the detected temperature is equal to or less than freezing point, the self-diagnosis is inhibited and temperature is determined every hour. Once the temperature of the CO sensor 1 exceeds freezing point, the self-diagnosis is enabled every fifty hours. The period of the self-diagnosis process is set by the timer 10d of the microcomputer 10 according to the result of temperature determination. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了防止由于CO传感器1中的水的冻结而导致的与断开状态相当的传感器故障中由于电化学CO传感器1的气体报警引起由于自诊断引起的无意错误。 解决方案:自诊断电路30根据微型计算机10的指示对CO传感器1进行自诊断。温度传感器20检测CO传感器1的温度。当检测到的温度等于或小于冰点 ,自我诊断被抑制,每小时确定温度。 一旦CO传感器1的温度超过冰点,自诊断每五十小时启用一次。 自诊断处理的周期由微型计算机10的定时器10d根据温度判定结果设定。 版权所有(C)2008,JPO&INPIT
    • 53. 发明专利
    • Radio tag
    • 无线电标签
    • JP2008151580A
    • 2008-07-03
    • JP2006338461
    • 2006-12-15
    • Digital Information Technologies Kkデジタル・インフォメーション・テクノロジー株式会社
    • INOUE KIYUUJINKOOKAZAKI SHINJIOSHIMA KIMIO
    • G01N27/02G01N27/406
    • PROBLEM TO BE SOLVED: To provide a device capable of detecting accurately existence of a specific gas, while taking a simpler constitution than hitherto. SOLUTION: In radio tags 10, 10A, which are radio tags 10, 10A having an antenna 30 for radio communication, a changing material for extinguishing or changing a communication function by generating a prescribed physical phenomenon by a specific gas is arranged at least on a part. By taking such a constitution, existence of the specific gas in a space can be detected accurately without using a large-scale device on which apparatuses for applying a voltage to a material to be reacted with the specific gas or detecting its electric resistance or the like are loaded. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够精确地检测特定气体的装置,同时采用比迄今为止更简单的构造。 解决方案:在具有用于无线电通信的天线30的无线电标签10,10A的无线电标签10,10A中,通过用特定气体产生规定的物理现象来熄灭或改变通信功能的改变材料被布置在 至少在一部分。 通过采取这种结构,可以准确地检测空间中的特定气体的存在,而不需要使用用于向要与特定气体反应的材料施加电压的装置或检测其电阻等的大型装置 被加载 版权所有(C)2008,JPO&INPIT
    • 56. 发明专利
    • Gas concentration measuring apparatus
    • 气体浓度测量装置
    • JP2008014926A
    • 2008-01-24
    • JP2006337060
    • 2006-12-14
    • Yazaki Corp矢崎総業株式会社
    • SASAZAKI KAZUSHIGEMORIYA KAZUYUKI
    • G01N27/416G01N27/406
    • PROBLEM TO BE SOLVED: To provide a gas concentration measuring apparatus capable of accurately measuring the concentration of gas to be measured in the ambient atmosphere through the use of an electrochemical gas sensor, even if radio waves exist in the surroundings. SOLUTION: A short-circuit current, flowing from a counter electrode 32 to a detection electrode 31 due to the movement of electrons generated at the detection electrode 31 according to the concentration of CO gas in the ambient atmosphere of the electrochemical CO sensor 1 to the counter electrode 32, is converted into CO concentration signals of a voltage value, corresponding to the concentration of CO gas in the ambient atmosphere of the electrochemical CO sensor 1. The CO concentration signals are amplified by an operational amplifier AMP, of which the positive-phase input terminal is connected to the detection electrode 31, of which a reversed-phase input terminal is connected to the counter electrode 32, and which operates on a base voltage, supplied from a base voltage generating circuit 30 for the positive-phase input terminal in a CO alarm. The wire between the counter electrode 32 and the reversed-phase input terminal is grounded via a capacitor C, and inductors L3 and L4 are interposed in between the detection electrode 31 and the positive-phase input terminal. COPYRIGHT: (C)2008,JPO&INPIT
    • 解决的问题:即使在周围存在无线电波,也能够通过使用电化学气体传感器来提供能够精确地测定环境气体中的被测气体的浓度的气体浓度测定装置。

      解决方案:由于在电化学CO传感器的环境气氛中根据CO气体的浓度在检测电极31处产生的电子的移动而从对电极32流向检测电极31的短路电流 1相对于电化学CO传感器1的环境气氛中的CO气体的浓度转换为电压值的CO浓度信号.CO浓度信号由运算放大器AMP放大,其中运算放大器AMP 正相输入端子连接到检测电极31,检测电极31的反相输入端子连接到对电极32,并且从基极电压产生电路30提供的基极电压作用于正电压, CO报警中的相位输入端子。 反电极32和反相输入端子之间的电线通过电容器C接地,并且电感器L3和L4介于检测电极31和正相输入端子之间。 版权所有(C)2008,JPO&INPIT