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    • 1. 发明授权
    • Gas sensors and methods of controlling light sources therefor
    • 气体传感器和控制光源的方法
    • US07835004B2
    • 2010-11-16
    • US11899508
    • 2007-09-06
    • Robert E. UberJohn H. Reno, II
    • Robert E. UberJohn H. Reno, II
    • G01N21/00
    • G01N21/1702G01N2021/1704G01N2201/12723G01N2201/12792H05B33/0818
    • A gas sensor includes a light source, a power source in operative connection with the light source and a control system in operative connection with the light source and the power supply. The control system is adapted to control power input from the power source to the light source such that the time period of the control frequency is shorter than the thermal time constant of at least one of (i) the infrared light source, (ii) the gas within the sensor, or (iii) a detector of the sensor. The time period of the control frequency can, for example, be no greater than ⅓ of the thermal time constant, no greater than 1/10 of the thermal time constant, or even no greater than 1/20 of the thermal time constant. A feedback signal can be provided to the control system assist in achieving control.
    • 气体传感器包括光源,与光源可操作地连接的电源和与光源和电源可操作地连接的控制系统。 控制系统适于控制从电源到光源的输入功率,使得控制频率的时间周期短于(i)红外光源,(ii) 传感器内的气体,或(iii)传感器的检测器。 控制频率的时间段可以例如不大于热时间常数的1/3,不大于热时间常数的1/10,或甚至不大于热时间常数的1/20。 可以向控制系统提供反馈信号以帮助实现控制。
    • 4. 发明授权
    • Leak detector
    • 泄漏检测器
    • US06362741B1
    • 2002-03-26
    • US09875498
    • 2001-06-06
    • Richard M. HickoxFrank Akers, IIICarlo Edward CuomoPatrick A. GencoWesley J. MellonJohn H. Reno, IIRoger Ramsey
    • Richard M. HickoxFrank Akers, IIICarlo Edward CuomoPatrick A. GencoWesley J. MellonJohn H. Reno, IIRoger Ramsey
    • G08B2100
    • G01M3/20
    • A portable leak detector includes a housing having an inlet and an outlet each in fluid communication between an interior and an exterior of the housing. A gas sensor, having a property that changes in response to exposure of the gas sensor to one or more gases, is positioned in fluid communication with the interior of the housing via the inlet thereof. The leak detector includes a probe lamp, a plurality of first indicator lamps supported by the housing and a speaker supported by the housing. A controller supported by the housing is connected to detect the property of the gas sensor. The controller causes the probe lamp to flash at a first frequency, causes a first group of the plurality of first indicator lamps to illuminate, and/or causes the loudspeaker to chirp at a second frequency all as a function of a detected property of the gas sensor.
    • 便携式泄漏检测器包括壳体,该壳体具有在壳体的内部和外部之间流体连通的入口和出口。 具有响应于气体传感器暴露于一种或多种气体而变化的性质的气体传感器被定位成通过其入口与壳体的内部流体连通。 检漏仪包括探测灯,由壳体支撑的多个第一指示灯和由壳体支撑的扬声器。 连接由壳体支撑的控制器,以检测气体传感器的性质。 控制器使得探针灯以第一频率闪烁,导致多个第一指示灯中的第一组照亮,和/或使扬声器以所检测的气体性质的函数以第二频率啁啾 传感器。