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公开(公告)号：US20110100097A1
公开(公告)日：2011-05-05
申请号：US12309567
申请日：2007-07-02
IPC分类号： G01M3/20
摘要： A leak detector having a pre-vacuum feed pump, a gas detector and a flow sensor. The detector also includes a buffer volume and a restrictor to be arranged between the feed pump and the flow sensor. This protects the flow sensor against pressure surges generated by the feed pump.
摘要翻译： 一种具有预真空进料泵，气体检测器和流量传感器的泄漏检测器。 检测器还包括缓冲体积和限流器，其被布置在进料泵和流量传感器之间。 这可以保护流量传感器免受进给泵产生的压力冲击。
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公开(公告)号：US20100326169A1
公开(公告)日：2010-12-30
申请号：US12865643
申请日：2009-02-06
摘要： A sniffing leak detector comprises a handle with a sniffing tip. Located at the sniffing tip is a measurement gas suction opening and a reference gas suction opening. The reference gas suction opening is intended for suctioning ambient gas. The reference gas suction opening is aligned substantially the same as the measurement gas suction opening such that both suction openings are sensitive in the same direction.
摘要翻译： 嗅探检测器包括具有嗅尖的手柄。 位于嗅尖的是测量气体吸入口和参考气体吸入口。 参考气体吸入口用于吸入环境气体。 参考气体吸入口与测量气体吸入口基本上相同，使得两个吸入口在相同方向上是敏感的。
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公开(公告)号：US20060283235A1
公开(公告)日：2006-12-21
申请号：US10558164
申请日：2004-05-10
申请人： Ludolf Gerdau , Randolf Rolff , Ralf Killian
发明人： Ludolf Gerdau , Randolf Rolff , Ralf Killian
IPC分类号： G01M3/20
CPC分类号： G01M3/202
摘要： A leak rate measuring device contains a strip spectrometer in which the ion path of the respective gas is influenced by at least one variable influencing quantity. When a gas having a predetermined mass is detected, and leakages of a gas having other predetermined masses interfere with this detection due to lack of selectivity of the spectrometer, the influencing quantity is modulated in a sinusoidal manner, and the wanted signal is subsequently selected in a lock-in amplifier. This modulation enables, for example, the elimination of the interfering influence of underground water during the leak rate measurement while using helium as a test gas.
摘要翻译： 泄漏率测量装置包含带状分光计，其中各气体的离子路径受到至少一个可变影响量的影响。 当检测到具有预定质量的气体并且由于缺乏光谱仪的选择性而具有其它预定质量的气体的泄漏干扰该检测时，影响量以正弦方式被调制，随后选择有用信号 锁定放大器。 该调制例如能够在使用氦气作为测试气体的同时，消除泄漏率测量期间地下水的干扰影响。
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公开(公告)号：US07331216B2
公开(公告)日：2008-02-19
申请号：US10558164
申请日：2004-05-10
申请人： Ludolf Gerdau , Randolf Rolff , Ralf Kilian
发明人： Ludolf Gerdau , Randolf Rolff , Ralf Kilian
IPC分类号： G01M3/20
CPC分类号： G01M3/202
摘要： A leak rate measuring device contains a strip spectrometer in which the ion path of the respective gas is influenced by at least one variable influencing quantity. When a gas having a predetermined mass is detected, and leakages of a gas having other predetermined masses interfere with this detection due to lack of selectivity of the spectrometer, the influencing quantity is modulated in a sinusoidal manner, and the wanted signal is subsequently selected in a lock-in amplifier. This modulation enables, for example, the elimination of the interfering influence of underground water during the leak rate measurement while using helium as a test gas.
摘要翻译： 泄漏率测量装置包含带状分光计，其中各气体的离子路径受到至少一个可变影响量的影响。 当检测到具有预定质量的气体并且由于缺乏光谱仪的选择性而具有其它预定质量的气体的泄漏干扰该检测时，影响量以正弦方式被调制，随后选择有用信号 锁定放大器。 该调制例如能够在使用氦气作为测试气体的同时，消除泄漏率测量期间地下水的干扰影响。
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公开(公告)号：US08528386B2
公开(公告)日：2013-09-10
申请号：US12865643
申请日：2009-02-06
IPC分类号： G01M3/04
摘要： A sniffing leak detector comprises a handle with a sniffing tip. Located at the sniffing tip is a measurement gas suction opening and a reference gas suction opening. The reference gas suction opening is intended for suctioning ambient gas. The reference gas suction opening is aligned substantially the same as the measurement gas suction opening such that both suction openings are sensitive in the same direction.
摘要翻译： 嗅探检测器包括具有嗅尖的手柄。 位于嗅尖的是测量气体吸入口和参考气体吸入口。 参考气体吸入口用于吸入环境气体。 参考气体吸入口与测量气体吸入口基本上相同，使得两个吸入口在相同方向上是敏感的。
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公开(公告)号：US20080142710A1
公开(公告)日：2008-06-19
申请号：US11885719
申请日：2006-03-02
申请人： Daniel Wetzig , Ludolf Gerdau
发明人： Daniel Wetzig , Ludolf Gerdau
IPC分类号： G01N23/00
摘要： The invention relates to a cold cathode pressure sensor comprising a gastight housing having a test gas inlet, an anode and a cathode arranged in said housing, and a radiation source directed to said cathode for igniting a cold cathode discharge. Said housing is at least partly made of glass. Said radiation source is arranged outside said housing and irradiates said cathode through the housing glass. Said radiation source substantially emits a radiation of a wavelength of more than 350 nm and less than 1,400 nm.
摘要翻译： 本发明涉及一种冷阴极压力传感器，其包括具有测试气体入口，布置在所述壳体中的阳极和阴极的气密外壳以及指向所述阴极以点燃冷阴极放电的辐射源。 所述壳体至少部分地由玻璃制成。 所述辐射源设置在所述壳体的外部并通过壳体玻璃照射所述阴极。 所述辐射源基本上发射波长大于350nm且小于1400nm的辐射。
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公开(公告)号：US20090314052A1
公开(公告)日：2009-12-24
申请号：US11922038
申请日：2006-06-02
申请人： Norbert Rolff , Randolf Paul Rolff , Ludolf Gerdau
发明人： Norbert Rolff , Randolf Paul Rolff , Ludolf Gerdau
IPC分类号： G01M3/20
摘要： Usually, a sniffing leak detector must be calibrated for each tracing gas. The calibration comprises ranging of the spectral positions into the mass spectrum and the amplitude height. At least one mass line is determined with a calibrating gas. The mass lines lying between two mass lines and/or between a zero point and a line are determined by interpolation and/or extrapolation. In this manner, a sniffing leak detector can be used for such tracing gases which have not previously been used for calibration purposes.
摘要翻译： 通常，每个跟踪气体必须校准一个嗅探检漏仪。 校准包括光谱位置到质谱和振幅高度的范围。 用校准气体确定至少一条质量线。 位于两条质量线之间和/或零点与一条线之间的质量线通过内插和/或外推来确定。 以这种方式，嗅探检测器可用于以前未用于校准目的的追踪气体。
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公开(公告)号：US08302454B2
公开(公告)日：2012-11-06
申请号：US11922038
申请日：2006-06-02
申请人： Norbert Rolff , Randolf Paul Rolff , Ludolf Gerdau
发明人： Norbert Rolff , Randolf Paul Rolff , Ludolf Gerdau
IPC分类号： G01N21/00
摘要： Usually, a sniffing leak detector must be calibrated for each tracing gas. The calibration comprises ranging of the spectral positions into the mass spectrum and the amplitude height. At least one mass line is determined with a calibrating gas. The mass lines lying between two mass lines and/or between a zero point and a line are determined by interpolation and/or extrapolation. In this manner, a sniffing leak detector can be used for such tracing gases which have not previously been used for calibration purposes.
摘要翻译： 通常，每个跟踪气体必须校准一个嗅探检漏仪。 校准包括光谱位置到质谱和振幅高度的范围。 用校准气体确定至少一条质量线。 位于两条质量线之间和/或零点与一条线之间的质量线通过内插和/或外推来确定。 以这种方式，嗅探检测器可用于以前未用于校准目的的追踪气体。
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公开(公告)号：US07795876B2
公开(公告)日：2010-09-14
申请号：US11885719
申请日：2006-03-02
申请人： Daniel Wetzig , Ludolf Gerdau
发明人： Daniel Wetzig , Ludolf Gerdau
摘要： A cold cathode pressure sensor has gastight housing, an anode and a cathode arranged in the housing, and a radiation source directed to the cathode for igniting a cold cathode discharge. The housing has a test gas inlet and is at least partly made of glass. The radiation source is arranged outside the housing and irradiates the cathode through the housing glass. The radiation source substantially emits a radiation of a wavelength of more than 400 nm and less than 1,400 nm.
摘要翻译： 冷阴极压力传感器具有气密的壳体，布置在壳体中的阳极和阴极以及指向阴极的用于点燃冷阴极放电的辐射源。 壳体具有测试气体入口，并且至少部分地由玻璃制成。 辐射源设置在外壳外部，并通过外壳玻璃照射阴极。 辐射源基本上发射波长大于400nm且小于1400nm的辐射。
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