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公开(公告)号:US4369647A
公开(公告)日:1983-01-25
申请号:US133650
申请日:1980-03-21
CPC分类号: G08B17/117 , G01M3/16 , G01M3/20 , G01N27/18
摘要: A gas leakage detector comprising a solid state gas sensor having a sintered metallic oxide block which changes thermal conductivity by chemical adsorption thereto and a wire for transforming thermal conductivity charges into an electric signal. A suction pump draws gas through a gas intake path to the gas sensor. A voltage-frequency converter generates a pulse frequency that is a function of the gas sensor voltage. An alarm indicator including sound and/or light is controlled to pulse by the output pulse of the voltage frequency converter.
摘要翻译: 一种气体泄漏检测器,包括具有通过化学吸附改变导热性的烧结金属氧化物块的固态气体传感器和用于将热导率电荷转换成电信号的导线。 抽吸泵将气体通过气体传感器的进气通道吸入。 电压 - 频率转换器产生作为气体传感器电压的函数的脉冲频率。 通过电压变频器的输出脉冲将包含声音和/或光的报警指示器控制为脉冲。