专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2011149754A Gas alarm and gas detection method 有权
标题翻译：气体报警和气体检测方法
公开(公告)号：JP2011149754A
公开(公告)日：2011-08-04
申请号：JP2010009843
申请日：2010-01-20
申请人： Fuji Electric Co Ltd , Osaka Gas Co Ltd , 大阪瓦斯株式会社 , 富士電機株式会社
发明人： YOSHIDA TOSHITAKA , SUZUKI TAKUYA , NARITA MASATAKA , OKAMURA MAKOTO , ONISHI HISAO , NAKAYAMA TOSHIRO , NONAKA ATSUSHI , NAKAJIMA TAKASHI
IPC分类号： G01N27/12
摘要： PROBLEM TO BE SOLVED: To provide a gas alarm capable of selectively detecting methane, CO and hydrogen by low power consumption, and a gas detection method. SOLUTION: When the resistance value of a gas detection layer is measured by making current intermittently pass through the heater layer provided to a membrane gas sensor at a predetermined cycle to calculate the concentration of gas, during the heating by the passage of electric current due to a heater control means in clean air, the first reference resistance value of the gas detection layer when the gas detection layer reaches a first temperature, the second reference resistance value of the gas detection layer when the temperature of the gas detection layer further rises to reach second temperature and the third reference resistance value of the gas detection layer when the temperature of the gas detection layer further rises to arrive at an almost constant third temperature are respectively preliminarily held and first-third resistance values are compared with the first-third reference resistance values to judge the kind of the gas. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供能够通过低功耗选择性地检测甲烷，CO和氢气的气体报警器和气体检测方法。解决方案：当通过使电流以预定的周期间歇地通过设置在膜式气体传感器上的加热器层来测量气体检测层的电阻值，以计算气体的浓度时，在加热期间通过电气体检测层达到第一温度时气体检测层的第一参考电阻值，当气体检测层的温度进一步升高时气体检测层的第二参考电阻值分别预先保持气体检测层的温度进一步上升到几乎恒定的第三温度时达到第二温度和气体检测层的第三参考电阻值，并且将第一 - 第三电阻值与第一温度进行比较，第三个参考电阻值来判断气体的种类。版权所有（C）2011，JPO＆INPIT

IPRDB

热门服务

关于我们

友情链接

联系方式