Leak detector
    1.
    发明申请
    Leak detector 有权
    泄漏检测器

    公开(公告)号:US20060280615A1

    公开(公告)日:2006-12-14

    申请号:US10553457

    申请日:2004-04-08

    IPC分类号: F04B49/00

    CPC分类号: G01M3/202

    摘要: A leak detector operating according to the counterflow principle comprises a first high vacuum pump that operates in series with a primary pump. A second high vacuum pump is branched at a connecting point and an entry side thereof is connected to a mass spectrometer. A light test gas in the form of helium flows through the second high vacuum pump in a direction opposite to a transport direction. A conduit connecting an inlet to the entry side of the first high vacuum pump is devoid of restricted flow zones and valves in such a way that the pumping capacity of the leak detector is high for helium, thereby reducing the response time thereof. A valve for blocking the conduit leading via the first high vacuum pump is arranged between the exit side thereof and the entry side of the primary pump.

    摘要翻译: 根据逆流原理操作的泄漏检测器包括与初级泵串联操作的第一高真空泵。 第二高真空泵在连接点处分支,其入口侧连接到质谱仪。 氦形式的轻质试验气体沿着与输送方向相反的方向流过第二高真空泵。 将入口连接到第一高真空泵的进入侧的导管没有限制的流动区域和阀,使得泄漏检测器的泵送能力对于氦是高的,从而减少其响应时间。 用于阻塞通过第一高真空泵引导的导管的阀布置在其出口侧和主泵的入口侧之间。

    Leak detector comprising a vacuum apparatus
    2.
    发明授权
    Leak detector comprising a vacuum apparatus 有权
    泄漏检测器,包括真空装置

    公开(公告)号:US07717681B2

    公开(公告)日:2010-05-18

    申请号:US10553457

    申请日:2004-04-08

    IPC分类号: F04B25/00

    CPC分类号: G01M3/202

    摘要: A leak detector operating according to the counterflow principle comprises a first high vacuum pump that operates in series with a primary pump. A second high vacuum pump is branched at a connecting point and an entry side thereof is connected to a mass spectrometer. A light test gas in the form of helium flows through the second high vacuum pump in a direction opposite to a transport direction. A conduit connecting an inlet to the entry side of the first high vacuum pump is devoid of restricted flow zones and valves in such a way that the pumping capacity of the leak detector is high for helium, thereby reducing the response time thereof. A valve for blocking the conduit leading via the first high vacuum pump is arranged between the exit side thereof and the entry side of the primary pump.

    摘要翻译: 根据逆流原理操作的泄漏检测器包括与初级泵串联操作的第一高真空泵。 第二高真空泵在连接点处分支,其入口侧连接到质谱仪。 氦形式的轻质试验气体沿着与输送方向相反的方向流过第二高真空泵。 将入口连接到第一高真空泵的进入侧的导管没有限制的流动区域和阀,使得泄漏检测器的泵送能力对于氦是高的,从而减少其响应时间。 用于阻塞通过第一高真空泵引导的导管的阀布置在其出口侧和主泵的入口侧之间。

    Leak indicator with test leak and test leak for integration into a leak detector
    4.
    发明申请
    Leak indicator with test leak and test leak for integration into a leak detector 有权
    泄漏指示器,带有测试泄漏和测试泄漏,用于集成到检漏仪中

    公开(公告)号:US20070039377A1

    公开(公告)日:2007-02-22

    申请号:US11504831

    申请日:2006-08-16

    IPC分类号: G01M3/04

    CPC分类号: G01M3/207

    摘要: A leak test apparatus includes a housing having an interior sized for retaining a plurality of instrument components including a control unit. A sniffer gun is linked to the instrument components, the sniffer gun having an intake point, and a test leak includes a gas reservoir, a constriction, an opening suited for introducing the intake point of said sniffer gun, and a temperature sensor. The temperature sensor is linked, either by means of a wired connection or wirelessly to the control unit for signal transfer.

    摘要翻译: 泄漏测试装置包括壳体,其具有尺寸适于保持包括控制单元的多个仪器部件的内部。 嗅探枪连接到仪器部件,嗅探枪具有进气点,并且测试泄漏包括气体储存器,收缩部,适于引入嗅探枪的进气口的开口和温度传感器。 温度传感器通过有线连接或无线连接到控制单元进行信号传输。

    Leak detecting device
    5.
    发明申请
    Leak detecting device 有权
    泄漏检测装置

    公开(公告)号:US20070000309A1

    公开(公告)日:2007-01-04

    申请号:US10558232

    申请日:2004-05-11

    IPC分类号: G01M3/04

    CPC分类号: G01M3/202

    摘要: A leak detecting device of the counterflow type includes a high vacuum pump having an inlet connected to a mass spectrometer. In addition, a prevacuum pump is provided having an inlet connected to an outlet of the high vacuum pump and a leak detecting device input. A connecting conduit is further provided between the leak detecting device input and an intermediate inlet of the high vacuum pump. A first valve of variable conductance is arranged in the course of the connecting conduit. Valves with a large inner diameter are expensive while valves with a small inner diameter show considerable resistance even in a fully opened state. A second valve arranged parallel to the first adjustable valve is provided in the course of the connecting conduit; thereby allowing the first and second valves to have relatively small inner diameters arranged in the connecting conduit, wherein the combined conductance of both opened valves is considerably increased.

    摘要翻译: 逆流式泄漏检测装置包括具有连接到质谱仪的入口的高真空泵。 此外,提供了一个预吸入泵,其具有连接到高真空泵的出口的入口和泄漏检测装置输入。 在泄漏检测装置输入和高真空泵的中间入口之间还设置连接导管。 可变电导率的第一个阀门在连接导管的过程中布置。 内径大的阀门是昂贵的,即使在完全打开状态下,具有小内径的阀门也显示出相当大的阻力。 在连接导管的过程中设置平行于第一可调节阀布置的第二阀; 从而允许第一和第二阀具有布置在连接管道中的相对小的内径,其中两个打开的阀的组合电导率显着增加。

    Test gas leak indicator
    6.
    发明授权
    Test gas leak indicator 失效
    测试气体泄漏指示器

    公开(公告)号:US5821404A

    公开(公告)日:1998-10-13

    申请号:US702696

    申请日:1996-09-06

    IPC分类号: G01M3/20

    CPC分类号: G01M3/202

    摘要: The invention relates to a process for operating a test gas leak indicator (1) with a gas inlet (2) and a test gas-sensitive detector (4), in which all or part of a stream of gas containing the test gas reaching the inlet (2) is taken to the detector (4) in the event of a leak; in order to improve the sensitivity of the leakage detection, it is proposed that the stream of gas be preferably periodically modulated and the signal from the test gas detector (4) be processed in synchronism with the modulation of the gas flow.

    摘要翻译: PCT No.PCT / EP95 / 00186 Sec。 371日期1996年9月6日 102(e)1996年9月6日PCT PCT 1995年1月19日PCT公布。 WO95 / 25267 PCT出版物 日期1995年9月21日本发明涉及一种用气体入口(2)和测试气体敏感检测器(4)操作试验气体泄漏指示器(1)的方法,其中全部或部分气体流包含 在泄漏的情况下,到达入口(2)的测试气体被送到检测器(4); 为了提高泄漏检测的灵敏度,提出优选地周期性地调制气体流,并且与气体流量的调制同步地处理来自测试气体检测器(4)的信号。

    Counterflow leak-detector unit with a high-vacuum pump
    7.
    发明授权
    Counterflow leak-detector unit with a high-vacuum pump 失效
    具有高真空泵的逆流泄漏检测器单元

    公开(公告)号:US5585548A

    公开(公告)日:1996-12-17

    申请号:US381928

    申请日:1995-02-14

    IPC分类号: G01M3/20 G01M3/02

    CPC分类号: G01M3/205 G01M3/202

    摘要: A counterflow leak-detector unit (1) with an inlet (2) connected to a test specimen, or a chamber housing a test specimen. A high-vacuum pump (4) produces pressure in a test-gas detector. The inlet (2) to the leak-detector unit is connected to an intermediate line (16) in the high-vacuum pump (4). To increase detection sensitivity without any danger of the pressure in the detector rising to inadmissible levels, a constriction (17) is located between two high-vacuum pump states (5, 6) of the high vacuum pump (4). Pump stages (5, 6) are separated by the intermediate line (16). The inlet (2) to the leak-detector unit (1) is connected to the outlet side of the high-vacuum pump state (5) at a point upstream of the constriction (17).

    摘要翻译: PCT No.PCT / EP93 / 01744 Sec。 371日期:1995年2月14日 102(e)1995年2月14日日期PCT提交1993年7月6日PCT公布。 公开号WO94 / 05990 日期1994年3月17日具有连接到试样的入口(2)的逆流泄漏检测器单元(1)或容纳测试样品的室。 高真空泵(4)在测试气体检测器中产生压力。 泄漏检测器单元的入口(2)连接到高真空泵(4)中的中间管线(16)。 为了提高检测灵敏度,没有检测器中的压力上升到不允许的水平的任何危险,收缩(17)位于高真空泵(4)的两个高真空泵状态(5,6)之间。 泵级(5,6)由中间管线(16)分开。 泄漏检测器单元(1)的入口(2)在收缩部(17)上游的一个点处连接到高真空泵状态(5)的出口侧。

    Gas-selective membrane and method of its production
    8.
    发明授权
    Gas-selective membrane and method of its production 有权
    气体选择膜及其生产方法

    公开(公告)号:US08425672B2

    公开(公告)日:2013-04-23

    申请号:US13571851

    申请日:2012-08-10

    IPC分类号: B01D53/22

    CPC分类号: G01M3/205

    摘要: A membrane selectively permeable to light gases comprises a membrane body formed by a first plate and a second plate. The second plate comprises a thin layer that is selectively gas-permeable. In the region of windows, this layer is exposed. There, support is provided by a porous bottom wall in the first plate or by narrow bores in the second plate. A heating device causes a radiation heating of the windows.

    摘要翻译: 选择性可透过轻气体的膜包括由第一板和第二板形成的膜体。 第二板包括选择性地透气的薄层。 在Windows的区域,这个层被暴露。 在那里,支撑由第一板中的多孔底壁或第二板中的窄孔提供。 加热装置引起窗户的辐射加热。

    Leak detector with a leak detector testing device
    10.
    发明授权
    Leak detector with a leak detector testing device 有权
    泄漏检测仪带有检漏仪检测装置

    公开(公告)号:US08117886B2

    公开(公告)日:2012-02-21

    申请号:US12308720

    申请日:2007-06-01

    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。