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    • 6. 发明授权
    • Methods for manufacturing unleaky closed containers and leak testing apparatus
    • 制造不透明的封闭容器和泄漏检测装置的方法
    • US08151631B2
    • 2012-04-10
    • US12512145
    • 2009-07-30
    • Martin Lehmann
    • Martin Lehmann
    • G01M3/34G01M3/04
    • G01M3/36
    • In a leak testing apparatus and a method for manufacturing unleaky closed containers having first and second flexible wall areas with different flexibility characteristics, a biasing member is moved toward and onto the first flexible area and a force detector monitors a biasing force at the second flexible area. A container is considered unleaky if a difference signal from force measuring signals at first and second points in time fulfills a test criteria. Sampling the biasing force monitored which results in the first force measuring signal includes determining maximum biasing force signal value which occurs during a time span up to and including the first point in time.
    • 在泄漏测试装置和用于制造具有不同柔性特性的第一和第二柔性壁区域的不透明的封闭容器的方法中,偏置构件朝向和朝向第一柔性区域移动并且力检测器监测第二柔性区域 。 如果在第一和第二时间点的力测量信号的差分信号满足测试标准,则容器被认为是不透明的。 对所产生的第一力测量信号进行监测的偏压力的采样包括确定在直到并包括第一时间点的时间范围内发生的最大偏置力信号值。
    • 8. 发明授权
    • Method of monitoring pressure of a gas species and apparatus to do so
    • 监测气体种类和装置的压力的方法
    • US07382819B2
    • 2008-06-03
    • US11707090
    • 2007-02-16
    • Martin LehmannJean-Noel FehrMartin LiechtiUrban Schnell
    • Martin LehmannJean-Noel FehrMartin LiechtiUrban Schnell
    • G01L7/00
    • G01L11/02G01N21/39Y10T29/49Y10T29/49845
    • A method of monitoring pressure of a gas species up to at most a predetermined maximum pressure value is disclosed. The method includes exposing the gas species to transmission of laser light, periodically modulating the wavelength of the laser light over a wavelength band including at least one absorption line of the gas species, optoelectrically converting the transmitted laser light, thereby generating an electric output signal, performing at least one of first filtering the electric output signal with a filter characteristic having a lower cut-off frequency not lower than a transition frequency and of second filtering the electric output signal with a bandpass filter characteristic having an upper cut-off frequency not higher than the transition frequency and a lower cut-off frequency above the modulation frequency of the periodic wavelength modulation. The output of at least one of the filterings is evaluated as a pressure indicative signal.
    • 公开了一种监测气体种类的压力至多达到预定最大压力值的方法。 该方法包括将气体物质暴露于透射激光,周期性地调制激光的波长在包括气体种类的至少一个吸收线的波长带上,光电转换透射的激光,从而产生电输出信号, 执行以具有不低于转换频率的较低截止频率的滤波器特性对所述电输出信号进行第一滤波中的至少一个,并且以具有不高于上限截止频率的带通滤波器特性对所述电输出信号进行第二滤波 超过转换频率和低于周期性波长调制调制频率的较低截止频率。 至少一个过滤器的输出被评估为压力指示信号。
    • 9. 发明授权
    • Methods for manufacturing unleaky closed containers and leak testing apparatus
    • 制造不透明的封闭容器和泄漏检测装置的方法
    • US07380440B2
    • 2008-06-03
    • US11221803
    • 2005-09-09
    • Martin Lehmann
    • Martin Lehmann
    • G01M3/34G01M3/04
    • G01M3/36
    • In a leak testing apparatus and a method for manufacturing unleaky closed containers having first and second flexible wall areas with different flexibility characteristics, a biasing member is moved toward and onto the first flexible area and a force detector monitors a biasing force at the second flexible area. A container is considered unleaky if a difference signal from force measuring signals at first and second points in time fulfills a test criteria. Sampling the biasing force monitored which results in the first force measuring signal includes determining maximum biasing force signal value which occurs during a time span up to and including the first point in time.
    • 在泄漏测试装置和用于制造具有不同柔性特性的第一和第二柔性壁区域的不透明的封闭容器的方法中,偏置构件朝向和朝向第一柔性区域移动并且力检测器监测第二柔性区域 。 如果在第一和第二时间点的力测量信号的差分信号满足测试标准,则容器被认为是不透明的。 对所产生的第一力测量信号进行监测的偏压力的采样包括确定在直到并包括第一时间点的时间范围内发生的最大偏置力信号值。