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1. 发明专利

JP2010266356A Carbon monoxide gas measuring instrument and alarm 有权
标题翻译：一氧化碳气体测量仪器和报警
公开(公告)号：JP2010266356A
公开(公告)日：2010-11-25
申请号：JP2009118494
申请日：2009-05-15
申请人： Figaro Eng Inc , Tokyo Gas Co Ltd , Yazaki Corp , フィガロ技研株式会社 , 東京瓦斯株式会社 , 矢崎総業株式会社
发明人： NAKAJIMA TADANOBU , TAKASHIMA HIROMASA , NAKAWA YOSHIHARU , SUZUKI TAKAYUKI , INUZUKA KAZUHIRO , INOUE TOSHIHIRO , UKO TOSHIHIRO
IPC分类号： G01N27/416 , G01N27/26 , G01N27/406
摘要： PROBLEM TO BE SOLVED: To correct the variations in the series internal resistance component of an electrochemical gas sensor. SOLUTION: When the supply of a charge current into the electrochemical gas sensor 1 from a power supply 33 is started, the resistance value of the series internal resistance component Rs in the equivalent circuit of the electrochemical gas sensor 1 is calculated, on the basis of the output voltage outputted from a current/voltage conversion circuit 40 and the resistance value of a resistor by a series internal resistance component calculating means 10a1. Then, the sensitivity data showing the sensitivity of the resistance value of the series internal resistance component Rs in the equivalent circuit with the output of the electrochemical gas sensor 1 is stored in a sensitivity data memory means 10b. Next, the sensitivity of the electrochemical gas sensor 1 is calculated, on the basis of the resistance value calculated by the series internal resistance component calculating means 10a1 and the sensitivity data stored in the sensitivity data memory means 10b by a sensitivity calculating means 10a2, and the concentration of the target gas produced in the electrochemical gas sensor 1 is corrected, on the basis of the sensitivity by a correction means 10a3. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：校正电化学气体传感器的串联内阻分量的变化。解决方案：当开始从电源33向电化学气体传感器1供应充电电流时，计算电化学气体传感器1的等效电路中的串联内部电阻分量Rs的电阻值，从电流/电压转换电路40输出的输出电压的基础和串联内部电阻分量计算装置10a1的电阻的电阻值。然后，将表示电化学气体传感器1的输出的等效电路中的串联内部电阻分量Rs的电阻值的灵敏度的灵敏度数据存储在灵敏度数据存储单元10b中。接下来，基于由串联内部电阻分量计算装置10a1计算的电阻值和由灵敏度计算装置10a2存储在灵敏度数据存储装置10b中的灵敏度数据，计算电化学气体传感器1的灵敏度，基于校正装置10a3的灵敏度来校正在电化学气体传感器1中产生的目标气体的浓度。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2001357467A GAS ALARM FOR BATHROOM 失效
公开(公告)号：JP2001357467A
公开(公告)日：2001-12-26
申请号：JP2000177206
申请日：2000-06-13
申请人： FIGARO ENG , YAZAKI CORP , TOKYO GAS CO LTD
发明人： FUJIMORI YUKI , OTSUKA KAZUYUKI , TAKASHIMA HIROMASA , OMURA AKIRA , HONJO TAEKO
IPC分类号： F24H1/00 , G08B21/00 , G08B21/14
摘要： PROBLEM TO BE SOLVED: To reduce the initial malfunction time of a gas alarm for a bathroom. SOLUTION: A waterproof film is provided at the gas introduction hole of the gas alarm for a bathroom, the printed board of the alarm is coated with waterproof resin, and a gas sensor which heats a gas sensing body provided on an insulated board for 14 ms once every minute is used. During one minute after turning on a battery power source, a heating condition is changed to heating for 60 sec by 14 ms each once a second. After then, it is changed to heating for 14 ms once a minute, the alarm waits for one minute without detecting gas and the alarm is shifted to normal monitoring operation.

3. 发明专利

JP2013004026A Alarm 有权
标题翻译：报警
公开(公告)号：JP2013004026A
公开(公告)日：2013-01-07
申请号：JP2011137685
申请日：2011-06-21
申请人： Yazaki Energy System Corp , 矢崎エナジーシステム株式会社 , Tokyo Gas Co Ltd , 東京瓦斯株式会社 , Figaro Eng Inc , フィガロ技研株式会社
发明人： TAKASHIMA HIROMASA , TOYODA KAZUO , OE HIDEKI , INUZUKA KAZUHIRO , DOI TOSHIYUKI , YOSHIOKA KENICHI
IPC分类号： G08B21/16
摘要： PROBLEM TO BE SOLVED: To provide an alarm capable of shortening the detection delay time and reducing consumption of a battery.SOLUTION: In a gas alarm, while sampling is performed with a period of 30 seconds, a sampling period is changed so as to be shortened by 10 seconds when a microcomputer 10 detects that gas concentration changes from a permission point or lower to a logic start point or higher in one time of sampling cycle (adjacent front and rear sampling points).
摘要翻译：要解决的问题：提供能够缩短检测延迟时间并减少电池消耗的报警。解决方案：在气体警报器中，当以30秒的时间进行采样时，当微型计算机10检测到气体浓度从允许点或更低到更改为更改时，将采样周期改变为缩短10秒在采样周期的一个时间（相邻的前后采样点）的逻辑起始点或更高。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2008058214A Gas detector, and self-diagnosis method of gas detector 有权
标题翻译：气体检测器和气体检测器的自诊断方法
公开(公告)号：JP2008058214A
公开(公告)日：2008-03-13
申请号：JP2006237249
申请日：2006-09-01
申请人： Figaro Eng Inc , Yazaki Corp , フィガロ技研株式会社 , 矢崎総業株式会社
发明人： UKO TOSHIHIRO , AMANO MASAHIRO , TAKAHASHI HIDEKI , TAKASHIMA HIROMASA
IPC分类号： G01N27/12
摘要： PROBLEM TO BE SOLVED: To self-diagnose a gas sensor as to having increased sensitivity.
SOLUTION: In the gas sensor for periodically altering the sensor temperature to high temperature side and low temperature side, and for detecting methane on the high temperature side and CO on the low temperature side, the temperature on the high temperature side is decreased to an intermediate temperature, and the resistance value in the air is measured. When the ratio between the resistance value at the intermediate temperature and that at the high temperature side is small in the air, the sensitivity of the sensor is increased. Thus, the gas sensor is self-diagnosed as having increased sensitivity.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：自动诊断气体传感器以提高灵敏度。
解决方案：在气敏传感器中，将传感器温度周期性地改变为高温侧和低温侧，并且用于检测高温侧的甲烷和低温侧的CO，高温侧的温度降低到中间温度，并且测量空气中的电阻值。当空气中的中间温度和高温侧的电阻值之间的比例小时，传感器的灵敏度增加。因此，气体传感器被自诊断为具有增加的灵敏度。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2002031338A MONITORING DEVICE FOR GAS COMBUSTION DEVICE 失效
公开(公告)号：JP2002031338A
公开(公告)日：2002-01-31
申请号：JP2000218945
申请日：2000-07-19
申请人： TOKYO GAS CO LTD , YAZAKI CORP
发明人： TANDA RYOJI , MOCHIZUKI KAZU , TAKASHIMA HIROMASA
IPC分类号： F23N5/24 , F23N5/00
摘要： PROBLEM TO BE SOLVED: To provide a monitoring device for a gas combustion device to effectively detect abnormality of CO concentration, while battery life time is markedly increased. SOLUTION: The monitoring device for a gas combustion device comprises a detecting timing control means 11A and an abnormality cut-off control means 11B. A detection timing control means 11A causes drive of a solid electrolytic type CO sensor 10 immediately after or by a given stabilizing time following the on-timing of a gas combustion device, in response to the on-timing of the gas combustion device and control is effected, such that CO concentration is detected. Furthermore, the detection timing control means 11A effects control, such that CO concentration is detected by drive of the solid electrolytic type CO sensor 10 even when a continuous combustion time is longer than a given continuous combustion reference time after a stabilizing time. Based on the detection result for abnormality of CO concentration by the solid electrolytic type CO sensor 10, the abnormality cutoff control means 11B effects control of cutoff of the gas combustion device.

6. 发明专利

JP2001296021A CO GAS DETECTING DEVICE 失效
公开(公告)号：JP2001296021A
公开(公告)日：2001-10-26
申请号：JP2000110897
申请日：2000-04-12
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： TAKASHIMA HIROMASA , MATSUNO MASARU , KOSHIMIZU DAISUKE , YAHAGI MASAHIRO
IPC分类号： F23N5/24 , F23N5/00
摘要： PROBLEM TO BE SOLVED: To provide a CO gas detecting device to effect correction of a 0-point reference value right after installation of a gas apparatus with high precision by considering the influence of temperature after combustion. SOLUTION: An initial correction means 2a-6 performs initial correction of a 0-point reference value in a way that, not in a combustion state according to a start of operation of the gas apparatus and in a state that a detecting element is heated to a detecting temperature, the detecting output of a CO detector is stored as a fresh 0-point reference value at a 0-point reference value memory means instead of a 0-point reference value before the fresh 0-point reference value to execute initial correction of the 0-point reference value. A first combustion correcting means 2a-7 executes first combustion correction of the 0-point reference value such that the detecting output of the CO detector is stored as a fresh 0-point reference value instead of a 0-point reference value before the fresh 0-point reference value at the 0-point reference value memory means at a point of time when any influence is not exercised on correction of the 0-point reference value by temperature generated by combustion after completion of combustion during completion of the first time combustion of the gas apparatus after initial correction.

7. 发明专利

JP2001194331A GAS ALARM UNIT AND GAS ALARMING METHOD 失效
公开(公告)号：JP2001194331A
公开(公告)日：2001-07-19
申请号：JP2000004899
申请日：2000-01-13
申请人： YAZAKI CORP , TOKYO GAS CO LTD , FIS KK
发明人： TAKASHIMA HIROMASA , OMURA AKIRA , NAGATA SATOSHI , NAKAE HIROSHI , HONJO TAEKO , MATSUMOTO SHINICHI , OKINAGA KAZUO
IPC分类号： G08B21/14 , G01N27/00 , G01N27/12 , G08B23/00
摘要： PROBLEM TO BE SOLVED: To provide a gas alarm unit and a gas alarming method capable of securing stable sensor sensitivity for a long time even when a gas sensor is driven by a battery with limited capacity and even in a severe environment such as high humidity. SOLUTION: A sensor drive circuit 13 generates pulse drive signals. The drive signals have first pulses with first cycles and second pulses with second cycles longer than the first cycles. Each of the first and second pulses has a high-level period during which it holds a high level, a low-level period during which it holds a low level, and a zero-level period during which it holds a zero level smaller than the low level. The second pulses are larger than the first pulses. The gas sensor 1 is driven by the drive signals. A sensor detecting circuit 9 detects the concentration of carbon monoxide based on an output of a sensor element during the low-level period of the drive signals in each of the first cycles. An alarm judging circuit 14 judges whether the detected concentration of carbon monoxide has exceeded an alarm point. An LED 21 gives an alarm indicating the abnormality of the concentration of carbon monoxide when the concentration of carbon monoxide has exceeded the alarm point.

8. 发明专利

JP2000206086A HYDROGEN GAS SENSOR AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2000206086A
公开(公告)日：2000-07-28
申请号：JP531399
申请日：1999-01-12
申请人： TOKYO GAS CO LTD , YAZAKI CORP
发明人： NAKAMURA KENICHI , TANDA RYOJI , MOCHIZUKI KAZU , TAKASHIMA HIROMASA
IPC分类号： G01N27/409 , G01N27/416
摘要： PROBLEM TO BE SOLVED: To measure the concentration of a hydrogen gas without being affected by other kinds of combustible gases by executing silicon treatment to a hydrogen gas sensor with a solid electrolyte type sensor element. SOLUTION: Porous platinum electrodes 1a and 1b are provided on one surface of a solid electrolyte layer 3 that is composed of stabilization zirconia containing, for example, 8 mol.% yttrium oxide Y2O3. An alumina insulation film for insulation is arranged on the other surface of the sold electrolyte layer 3, further a heater 5 comprising platinum is provided on it, and the solid electrolyte layer 3 can be heated to a temperature suitable to its ionic conduction. Also, a terminal part 6 for connection is provided on the solid electrolyte layer 3, and is connected by the electrodes 1a and 1b and a lead wire 7. By using such a sensor element, a hydrogen gas sensor with many advantages, high selectivity to the hydrogen gas, improved accuracy, a long life eliminating frequent maintenance and inspections, and further easy and inexpensive manufacture can be obtained.

9. 发明专利

JP2000012042A ACTIVE SITE INCREASED CERMET ELECTRODE AND MANUFACTURE OF THE CERMET ELECTRODE 失效
公开(公告)号：JP2000012042A
公开(公告)日：2000-01-14
申请号：JP17873598
申请日：1998-06-25
申请人： TOKYO GAS CO LTD , YAZAKI CORP
发明人： NAKAMURA KENICHI , TANDA RYOJI , MOCHIZUKI KAZU , TAKASHIMA HIROMASA
IPC分类号： G01N27/409 , H01M4/86 , H01M4/88
摘要： PROBLEM TO BE SOLVED: To provide a cermet electrode suppressing growth caused by sintering of Pt, increasing three phase interface, and increasing electrode activity. SOLUTION: A cermet electrode with increased active sites is made of a sintered porous body formed by almost uniformly intertwining Pt fine particles and YSZ fine particles which is zirconium dioxide (ZrO2) stabilized with yttria (Y2O3), and is manufactured by mixing the Pt fine particles, having an average particle size of 0.6 μm or less and the YSZ fine particles having an average particle size of 1 μm or less, and sintering the mixture.

10. 发明专利

JPH116816A DETECTING AND DRIVING METHOD FOR CARBON MONOXIDE GAS 失效
公开(公告)号：JPH116816A
公开(公告)日：1999-01-12
申请号：JP16152397
申请日：1997-06-18
申请人： TOKYO GAS CO LTD , YAZAKI CORP
发明人： KONO TAKASHI , TANDA RIYOUJI , MOCHIZUKI KAZU , TAKASHIMA HIROMASA
IPC分类号： G01N27/416
摘要： PROBLEM TO BE SOLVED: To obtain a detecting and driving method in which carbon monoxide gas can be detected with high accuracy irrespective of its concentration by a method wherein the temperature of a sensor is set to be low in a measurement for a low-concentration region and to be high in a measurement for a high-concentration region. SOLUTION: The temperature of a sensor is set at a temperature (usually about 300 deg.C) at which an ionic conductivity is generated in stabilized zirconia. When it is set at about 800 deg.C or higher, the stabilized zirconia is damaged, and the life of the sensor becomes short. As a result, the sensor is usually used at about 500 deg.C or lower. The temperature of the sensor is set at least at two stages, i.e., a high-temperature stage and a low-temperature stage. For example, about 400 to 500 deg.C is used as the high-temperature stage, and about 300 to 400 deg.C is used as the lower-temperature stage. Then, carbon monoxide gas in a low- concentration region is measured at the low-temperature stage, and the carbon monoxide gas in a high-concentration region is measured at the high-temperature stage. The interval of a temperature changeover is set at a time or higher in which the output of the sensor is stabilized, and it is usually set at about 5 to 10 seconds. When an especially quick changeover is required, an estimation logic means or the like is installed. By this method, the carbon monoxide gas can be measured with good accuracy even in a concentration of 500 ppm or higher.

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