公开(公告)号：US07802461B2

公开(公告)日：2010-09-28

申请号：US11664235

申请日：2005-08-24

申请人： Jörn Liebich ,  Randolf Rolff ,  Ralf Kilian

发明人： Jörn Liebich ,  Randolf Rolff ,  Ralf Kilian

IPC分类号： G01M3/02 ,  G01M3/26

CPC分类号： G01M3/202

摘要： In leak detection, the signal generated by a test gas is superposed by interferences which fade as the vacuum generation in a container proceeds. Depending on the negative slope of the volume signal (MS), a lower indication limit (AG) is calculated. Upon activation of a zero function, the volume signal (MS) is not reduced to zero but only to the level of the indication limit (AG). Any exceeding of the indication limit is identified as a leak. Thus, the maximum sensitivity of the leak detection is guaranteed at any time.

摘要翻译： 在泄漏检测中，由测试气体产生的信号通过随着容器中的真空产生进行而衰减的干扰而叠加。 根据体积信号（MS）的负斜率，计算出较低的显示极限（AG）。 在零功能激活时，音量信号（MS）不会降低到零，而是降低到指示极限（AG）的水平。 任何超过指示极限的都被识别为泄漏。 因此，可以随时保证泄漏检测的最大灵敏度。

公开(公告)号：US08416091B2

公开(公告)日：2013-04-09

申请号：US11630502

申请日：2005-06-22

申请人： Randolf Rolff ,  Ralf Kilian ,  Jörn Liebich ,  Norbert Moser ,  Norbert Rolff

发明人： Randolf Rolff ,  Ralf Kilian ,  Jörn Liebich ,  Norbert Moser ,  Norbert Rolff

IPC分类号： G08B17/10

CPC分类号： G01M3/205

摘要： An illumination device is provided at the handle-piece of a sniffing probe, in which the illumination device illuminates the region to be inspected. This incorporation considerably facilitates handling of the sniffing probe in difficult-to-access and poorly illuminated regions, for sniffing probes used for detecting gases, for example, for detecting a gas leakage in a cooling device of a motor vehicle.

摘要翻译： 照明装置设置在嗅探针的手柄处，照明装置照射待检查的区域。 这种并入显着地有助于处理难以进入和不良照射区域中的嗅探头，用于检测用于检测气体的探测探针，例如用于检测机动车辆的冷却装置中的气体泄漏。

公开(公告)号：US20090013766A1

公开(公告)日：2009-01-15

申请号：US11664235

申请日：2005-08-24

申请人： Jorn Liebich ,  Randolf Rolff ,  Ralf Kilian

发明人： Jorn Liebich ,  Randolf Rolff ,  Ralf Kilian

IPC分类号： G01M3/04

CPC分类号： G01M3/202

摘要： In leak detection, the signal generated by a test gas is superposed by interferences which fade as the vacuum generation in a container proceeds. Depending on the negative slope of the volume signal (MS), a lower indication limit (AG) is calculated. Upon activation of a zero function, the volume signal (MS) is not reduced to zero but only to the level of the indication limit (AG). Any exceeding of the indication limit is identified as a leak. Thus, the maximum sensitivity of the leak detection is guaranteed at any time.

摘要翻译： 在泄漏检测中，由测试气体产生的信号通过随着容器中的真空产生进行而衰减的干扰而叠加。 根据体积信号（MS）的负斜率，计算出较低的显示极限（AG）。 在零功能激活时，音量信号（MS）不会降低到零，而是降低到指示极限（AG）的水平。 任何超过指示极限的都被识别为泄漏。 因此，可以随时保证泄漏检测的最大灵敏度。

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。

公开(公告)号：US07030381B2

公开(公告)日：2006-04-18

申请号：US10450237

申请日：2001-11-17

申请人： Ralf Kilian ,  Randolf Rolff ,  Gerhard Küster ,  Ralf Hirche

发明人： Ralf Kilian ,  Randolf Rolff ,  Gerhard Küster ,  Ralf Hirche

IPC分类号： G01N21/35

CPC分类号： G01N21/3504 ,  G01M3/047 ,  G01M3/20 ,  G01M3/38 ,  G01N33/0026

摘要： A method for detecting a test gas present at a measuring location, using an infrared gas analyzer having a cuvette, an infrared light source, an infrared detector, and two gas lines. A first gas line is adapted to take up a measuring gas at a measuring location that may contain a test gas to the cuvette. The second gas line is adapted to take up gas from the surroundings of the measuring location (i.e., reference gas), that may contain a test gas background that is to be taken into consideration when detecting the test gas taken up at the measuring location. To improve the sensitivity of the analyzer, only one cuvette and the measuring gas is taken up at the measuring location and the reference gas is fed to the cuvette such that each gas is alternately present therein.

摘要翻译： 一种使用具有比色皿，红外光源，红外线检测器和两条气体管线的红外线气体分析仪来检测存在于测量位置的测试气体的方法。 第一气体管线适于在测量位置处吸收测量气体，该测量位置可以包含测试气体到比色杯。 第二气体管线适于从测量位置（即，参考气体）的周围吸收气体，其可以包含在检测在测量位置处被吸收的测试气体时要考虑的测试气体背景。 为了提高分析仪的灵敏度，在测量位置仅吸收一个试管和测量气体，并将参考气体送入比色皿，使得每个气体交替存在于其中。

公开(公告)号：US20080223112A1

公开(公告)日：2008-09-18

申请号：US11630502

申请日：2005-06-22

申请人： Randolf Rolff ,  Ralf Kilian ,  Jorn Licbich ,  Norbert Moser ,  Norbert Rolff

发明人： Randolf Rolff ,  Ralf Kilian ,  Jorn Licbich ,  Norbert Moser ,  Norbert Rolff

IPC分类号： G01M3/04

CPC分类号： G01M3/205

摘要： Sniffing probes are frequently used for detecting leaking gases in difficult-to-access and poorly visible environments, for example for detecting a gas leakage in a cooling device of a motor vehicle. It is an object of the invention to improve handling of the sniffing probe. According to the invention, the object is achieved by providing an illumination device (25) at the handle-piece (14) of the sniffing probe (11), which illumination device (25) illuminates the region to be inspected. This considerably facilitates handling of the sniffing probe in difficult-to-access and poorly illuminated regions.

摘要翻译： 嗅探头经常用于检测难以进入和不良视觉环境中的泄漏气体，例如用于检测机动车辆的冷却装置中的气体泄漏。 本发明的目的是改进嗅探针的处理。 根据本发明，目的是通过在嗅探头（11）的手柄（14）处设置照明装置（25），该照明装置（25）照亮要检查的区域。 这极大地方便了难以进入和欠光照区域的嗅探头的处理。