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    • 2. 发明申请
    • INFRARED GAS DETECTION SYSTEMS AND METHODS
    • 红外检测系统和方法
    • US20080006775A1
    • 2008-01-10
    • US11767382
    • 2007-06-22
    • Jose ArnoPaul MarganskiRobert HillasSteven LurcottGlenn Tom
    • Jose ArnoPaul MarganskiRobert HillasSteven LurcottGlenn Tom
    • G01N21/00
    • G01N21/05G01N21/3504G01N2021/178G01N2021/317G01N2201/0846
    • Thermopile-based detection and monitoring/control systems are described, in applications such as inferring concentration of a multicomponent gas by sensing a tracer gas therein, utilizing fiber optic cables to provide multiple sensing paths in a cell, utilizing a modulated IR source switched in on/off cycles, verifying chemical reagent identities, and sensing of effluent following discharge from a contamination removal 8 element or cold trap. A thermopile infrared (TPIR) detector of highly compact character is described for such applications, and permits monitoring of species that may be problematic or otherwise deleterious in such environments. In one implementation, light source modulation and signal processing techniques are employed to improve signal to noise ratio and minimize calibration and complexity of the TPIR detector.
    • 在基于热电堆检测和监测/控制系统的应用中,例如通过在其中感测示踪气体来推断多组分气体的浓度,利用光纤缆线在单元中提供多个感测路径,利用开启的调制IR源 /关闭循环,验证化学试剂标识,以及从排除污染物8元素或冷阱排出后的污染物检测。 对于这种应用描述了具有高度紧密特性的热电堆红外(TPIR)检测器,并且允许监视在这种环境中可能是有问题或其它有害的物种。 在一个实施方案中,采用光源调制和信号处理技术来提高信噪比并最小化TPIR检测器的校准和复杂性。