公开(公告)号：US20110100097A1

公开(公告)日：2011-05-05

申请号：US12309567

申请日：2007-07-02

申请人： Ludolf Gerdau ,  Randolf Paul Rolff ,  Norbert Rolff ,  Daniel Wetzig

发明人： Ludolf Gerdau ,  Randolf Paul Rolff ,  Norbert Rolff ,  Daniel Wetzig

IPC分类号： G01M3/20

CPC分类号： G01M3/202 ,  G01M3/205

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。

公开(公告)号：US20100294026A1

公开(公告)日：2010-11-25

申请号：US12677631

申请日：2008-09-01

申请人： Daniel Wetzig ,  Stefan Mebus ,  Norbert Rolff

发明人： Daniel Wetzig ,  Stefan Mebus ,  Norbert Rolff

IPC分类号： G01M3/20

CPC分类号： G01M3/205

摘要： A sniffing leak detector which comprises a first suction line in a sniffing probe, the line leading to a main device, is provided with a larger second suction line through which gas is sucked in from the sniffing tip by a gas delivery pump. By connecting the second suction line, the distance sensitivity is increased. By disconnecting the second suction line, on the other hand, the sensitivity is increased. Thus, it is possible to first search for leaks by use of a high gas throughput and subsequently exactly determine the leaks under the quantitative aspect by use of a reduced flow.

摘要翻译： 一种嗅探检测器，其包括在嗅探针中的第一吸入管线，通向主要装置的管线，其具有较大的第二吸入管线，通过气体输送泵从嗅探尖端吸入气体。 通过连接第二吸入管线，距离灵敏度增加。 另一方面，通过断开第二吸入管线，灵敏度增加。 因此，可以首先通过使用高气体流量来搜索泄漏，并且随后通过使用减少的流量精确地确定在定量方面的泄漏。

公开(公告)号：US20060090477A1

公开(公告)日：2006-05-04

申请号：US10537639

申请日：2003-12-09

申请人： Norbert Rolff

发明人： Norbert Rolff

IPC分类号： F25B9/00

CPC分类号： F25B9/14 ,  F04B7/04 ,  F04B39/0005 ,  F04B39/0016 ,  F04B53/148

摘要： A piston compressor comprises a piston (12) which oscillates in a cylinder (14). A compressed-gas supply arrangement is provided which comprises a compressed-gas accumulator (34), a compressed-gas supply line (18) between a compressed-gas source (20) and the compressed-gas accumulator (34). Further, the compressed-gas supply line (18) comprises an inlet valve (42) which is open when the piston (12) is in a filling position. The inlet valve (42) is defined by a cylinder wall opening (22) and a piston wall opening (38) which are located opposite each other when the piston (12) is in the filling position, thus defining an open valve, and which are closed by the piston wall (40) and the cylinder wall (24), respectively, when the piston (12) is in the non-filling position, thus defining a closed valve. Thereby, a valve is provided which does not comprise any moving parts and is thus easy to manufacture, is highly reliable and has a long service life.

摘要翻译： 活塞式压缩机包括在气缸（14）中振荡的活塞（12）。 提供一种压缩气体供应装置，其包括压缩气体储存器（34），压缩气体源（20）和压缩气体蓄积器（34）之间的压缩气体供应管线（18）。 此外，压缩气体供应管线（18）包括当活塞（12）处于填充位置时打开的入口阀（42）。 入口阀（4 2）由活塞（12）处于填充位置时彼此相对定位的气缸壁开口（22）和活塞壁开口（38）限定，从而限定开阀，并且 当活塞（12）处于非填充位置时，其分别由活塞壁（40）和气缸壁（24）封闭，因此限定了一个闭合的阀。 因此，提供了不包括任何运动部件并且因此易于制造，高可靠性并且具有长的使用寿命的阀。

公开(公告)号：US08752412B2

公开(公告)日：2014-06-17

申请号：US12677631

申请日：2008-09-01

申请人： Daniel Wetzig ,  Stefan Mebus ,  Norbert Rolff

发明人： Daniel Wetzig ,  Stefan Mebus ,  Norbert Rolff

IPC分类号： G01M3/04 ,  G01N1/14 ,  G01N1/16

CPC分类号： G01M3/205

摘要： A sniffing leak detector which comprises a first suction line in a sniffing probe, the line leading to a main device, is provided with a larger second suction line through which gas is sucked in from the sniffing tip by a gas delivery pump. By connecting the second suction line, the distance sensitivity is increased. By disconnecting the second suction line, on the other hand, the sensitivity is increased. Thus, it is possible to first search for leaks by use of a high gas throughput and subsequently exactly determine the leaks under the quantitative aspect by use of a reduced flow.

摘要翻译： 一种嗅探检测器，其包括在嗅探针中的第一吸入管线，通向主要装置的管线，其具有较大的第二吸入管线，通过气体输送泵从嗅探尖端吸入气体。 通过连接第二吸入管线，距离灵敏度增加。 另一方面，通过断开第二吸入管线，灵敏度增加。 因此，可以首先通过使用高气体流量来搜索泄漏，并且随后通过使用减少的流量精确地确定在定量方面的泄漏。

公开(公告)号：US08117886B2

公开(公告)日：2012-02-21

申请号：US12308720

申请日：2007-06-01

申请人： Norbert Rolff ,  Randolf Rolff ,  Sandra Seitz ,  Werner Grosse Bley ,  Thomas Boehm ,  Daniel Wetzig

发明人： Norbert Rolff ,  Randolf Rolff ,  Sandra Seitz ,  Werner Grosse Bley ,  Thomas Boehm ,  Daniel Wetzig

IPC分类号： G12B13/00 ,  G01M3/04

CPC分类号： G01M3/207

摘要： A leak detector comprising a base appliance provided with a gas detector, a vacuum pump, and a control device. A sniffer probe is connected to the base appliance. A test leak device containing the supply of test gas is arranged in a separate sub-housing. The sub-housing also contains a temperature sensor, a processor, and a data memory. The processor corrects the measured temperature according to a sample, and modulates the light of a light barrier. The processor is connected to the control device in the base appliance by a data cable.

摘要翻译： 一种泄漏检测器，包括设置有气体检测器，真空泵和控制装置的基本设备。 嗅探器探头连接到基础设备。 包含供应测试气体的测试泄漏装置被布置在单独的子壳体中。 子壳体还包含温度传感器，处理器和数据存储器。 处理器根据样品校正测量的温度，并调制光栅的光。 处理器通过数据电缆连接到基础设备中的控制设备。

公开(公告)号：US20110283769A1

公开(公告)日：2011-11-24

申请号：US13142981

申请日：2009-12-15

申请人： Martin Bohn ,  Norbert Rolff ,  Jochen Puchalla ,  Michael Dauenhauer

发明人： Martin Bohn ,  Norbert Rolff ,  Jochen Puchalla ,  Michael Dauenhauer

IPC分类号： G01N7/00

CPC分类号： G01M3/202 ,  G01M3/226

摘要： In the leak detection method, it is provided that a specimen (24) filled with a test gas is positioned in front of a suction opening (11). The suctioned air brushes along the surface of said specimen and takes up test gas in the case of a leak. Said test gas is recognized by a test gas detector (17,17a). According to the invention, full mobility of said specimen (24) is ensured during the testing process such that a test can also be carried out while said specimens are moving past said suction opening.

摘要翻译： 在泄漏检测方法中，设置填充有测试气体的样本（24）位于吸入口（11）的前方。 吸入的空气沿着所述样品的表面刷刷并在泄漏的情况下占据测试气体。 所述测试气体由测试气体检测器（17,17a）识别。 根据本发明，在测试过程中确保所述样品（24）的完全移动性，使得在所述试样移动通过所述吸入口时也可以进行试验。

公开(公告)号：US5543706A

公开(公告)日：1996-08-06

申请号：US244521

申请日：1994-06-01

申请人： Norbert Rolff

发明人： Norbert Rolff

IPC分类号： G01R15/09 ,  G01R19/00 ,  G01R19/165 ,  G01T1/29 ,  H03F3/72

CPC分类号： H03F3/72 ,  G01R19/16528 ,  G01R19/16595

摘要： An electronic circuit for measuring current in a working circuit is provided with a first operational amplifier having a positive input, a negative input, and an output connected to at least one in-line amplifier to form a first current path. A second operational amplifier having a positive input, a negative input, and an output connected to a differential amplifier is provided within the circuit to form a second current path. An input terminal is connected to the negative inputs of each of the operational amplifiers to provide a connection between the electronic circuit and the working circuit. A variable conductance component is connected in series between the input terminal and the negative input of the second operational amplifier to control the flow of variable currents through the two current paths.

摘要翻译： PCT No.PCT / EP92 / 02363 Sec。 371日期1994年6月1日 102（e）日期1994年6月1日PCT提交1992年10月14日PCT公布。 公开号WO93 / 11607 日期1993年6月10日用于测量工作电路中的电流的电子电路设置有具有正输入，负输入和连接到至少一个在线放大器以形成第一电流路径的输出的第一运算放大器。 具有正输入，负输入和连接到差分放大器的输出的第二运算放大器设置在电路内以形成第二电流路径。 输入端子连接到每个运算放大器的负输入端以提供电子电路和工作电路之间的连接。 可变电导分量串联连接在第二运算放大器的输入端和负输入端之间，以控制通过两条电流路径的可变电流的流动。

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

CPC分类号： G01M3/207 ,  G01M3/202

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。

公开(公告)号：US06474172B1

公开(公告)日：2002-11-05

申请号：US09508605

申请日：2000-05-10

申请人： Norbert Rolff ,  Rudolf Stocker

发明人： Norbert Rolff ,  Rudolf Stocker

IPC分类号： G01L2112

CPC分类号： G01L21/12

摘要： Two resistance elements (3, 6) are used for eliminating the influence of wall temperature on the gas pressure in a vessel, determined by a Pirani manometer. The first resistance element (3) is present in a first branch of a Wheatstone bridge (1), and the voltage is tapped by means of a voltage divider (7). The second resistance element (6) is present with a series resistance (5) in the second branch and is adjusted to a lower temperature. The changes in the voltages tapped at the branches are essentially identical for identical temperature changes at the resistance elements (3, 6), so that the Wheatstone bridge (1) remains balanced. The adjustment is improved by a constant current source (11). Another embodiment uses only one resistance element, whose temperature is reduced periodically during the balancing of the Wheatstone bridge and, after thermal equilibrium has been established, is determined by determining its resistance by means of a low constant current and is used for the computational compensation of the effect of the wall temperature. In a further embodiment, transient effects are produced by periodically switching a resistance back and forth and the frequencies are measured, from which the gas pressure is then determined.

摘要翻译： 两个电阻元件（3,6）用于消除由Pirani压力计确定的壁温度对容器内气体压力的影响。 第一电阻元件（3）存在于惠斯通电桥（1）的第一支路中，并借助分压器（7）对电压进行抽头。 第二电阻元件（6）在第二支路中具有串联电阻（5），并被调节到更低的温度。 在电阻元件（3,6）处的相同温度变化下，分支点的电压变化基本相同，从而惠斯通电桥（1）保持平衡。 通过恒定电流源（11）改善了调整。 另一个实施例仅使用一个电阻元件，其在惠斯登电桥的平衡期间周期性地降低其温度，并且在建立热平衡之后，通过借助于低恒定电流确定其电阻来确定其并且用于计算补偿 壁温的影响。 在另一个实施例中，通过周期性地切换电阻产生瞬态效应，并且测量频率，然后确定气体压力。

公开(公告)号：US08171773B2

公开(公告)日：2012-05-08

申请号：US12311581

申请日：2007-09-10

申请人： Daniel Wetzig ,  Norbert Rolff

发明人： Daniel Wetzig ,  Norbert Rolff

IPC分类号： G01M3/16

CPC分类号： G01M3/202

摘要： To achieve a large measurement range from small up to larger leakage rates, a switchover from normal operation to gross operation occurs. In gross operation, the sucked-in gas flow is separated by different throttles, wherein the throttle that leads to the test gas sensor has a low flow rate. This manner of operation prevents a too large quantity of test gas from reaching the sensor surface and contaminating the sensor. In another alternative, in gross operation the test gas flows only across a part of the sensor surface. The other part is flushed.

摘要翻译： 为了实现从小到大泄漏率的大测量范围，发生从正常操作到总操作的切换。 在总操作中，吸入气流由不同的节流阀分开，其中通向测试气体传感器的节流阀具有低流量。 这种操作方式防止太大量的测试气体到达传感器表面并污染传感器。 在另一个替代方案中，在总体操作中，测试气体仅在传感器表面的一部分上流动。 另一部分被冲洗。