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1. 发明授权

US06581460B1 Method and device for direct digitizing microwave signals 有权
标题翻译：用于直接数字化微波信号的方法和装置
公开(公告)号：US06581460B1
公开(公告)日：2003-06-24
申请号：US10058713
申请日：2002-01-28
申请人： Robert Laun
发明人： Robert Laun
IPC分类号： G01F23284
CPC分类号： G01F23/284
摘要： A method and a device for directly digitizing microwave signals reflected on a filling product surface of a filling product present in a receptacle, wherein the microwave signals reflected on the filling product surface are scanned, and the analog values resulting from said scanning process are stored in an analog value storage means. The stored analog values are then read out from the analog value storage means at a lower rate as compared to the scanning rate, and are converted into digital values. The digital values may then be made available to an evaluation means for determining the filling level height.
摘要翻译：一种用于直接数字化反映在存储在容器中的填充产品的填充产品表面上的微波信号的方法和装置，其中扫描在填充产品表面上反射的微波信号，并将由所述扫描处理产生的模拟值存储在模拟值存储装置。然后，与扫描速率相比，从模拟值存储装置以较低的速率读出存储的模拟值，并将其转换为数字值。然后可以将数字值提供给用于确定填充水平高度的评估装置。

2. 发明授权

US06619117B1 Level measuring instrument 失效
标题翻译：液位测量仪
公开(公告)号：US06619117B1
公开(公告)日：2003-09-16
申请号：US09659016
申请日：2000-09-08
申请人： Ralf Reimelt
发明人： Ralf Reimelt
IPC分类号： G01F23284
CPC分类号： H01P5/026 , G01F23/284
摘要： Provision is made for a level measuring instrument for measuring a level of a filled material (1) in a container (3), in the case of which electromagnetic signals (S) generated by means of an electronic circuit (5) are guided into the container (3) via a waveguide (17) and signals (R) reflected at a filled material surface are guided out, in the case of which an impedance-matching device active in a frequency band of a bandwidth is connected upstream of the waveguide (17). For this purpose, the level measuring instrument comprises an injector (15, 15′),which transmits the signals (S) from the circuit (5) to the waveguide (17), and which has an inner conductor (19), which inner conductor (19) has, for the purpose of increasing the characteristic impedance, a conductor section (45, 45′) with a geometry deviating from a cylindrical shape.
摘要翻译：规定了用于测量容器（3）中的填充材料（1）的水平的液位测量仪器，其中通过电子电路（5）产生的电磁信号（S）被引导到在波导管的上游具有阻抗匹配装置的情况下，通过波导（17）将容器（3）和在填充材料表面反射的信号（R）引导出， 17）。为此，液位测量仪器包括将信号（S）从电路（5）传输到波导（17）的喷射器（15,15'），并具有内部导体（19），内部导体导体（19）为了增加特性阻抗，具有几何形状偏离圆柱形状的导体部分（45,45'）。

3. 发明授权

US06366436B1 Electronic device for use in regions subject to explosion hazards 有权
标题翻译：用于爆炸危险区域的电子设备
公开(公告)号：US06366436B1
公开(公告)日：2002-04-02
申请号：US09268343
申请日：1999-03-16
申请人： Winfried Maier , Hartmut Güthner , Roberto Cudini
发明人： Winfried Maier , Hartmut Güthner , Roberto Cudini
IPC分类号： G01F23284
CPC分类号： G01F15/14 , G01F15/06 , G01F23/284 , H05K5/06 , H05K7/1462
摘要： A description is given of an electronic device for use in regions subject to explosion hazards, which is small and light, can be produced cost-effectively and offers a high degree of flexibility, having a housing (1) with a connecting chamber (3), which is designed in accordance with the safety class Ex-d or Ex-e, in which there is arranged a connecting element (6) to which electric lines can be connected, and in which there is arranged a circuit (9) for limiting a current, a voltage and a power which are fed to the device via the lines during operation, the limitation being performed in accordance with the requirements of safety class Ex-i, and having an electronics chamber (4), in which there is arranged an electronic system (11) designed in accordance with the safety class Ex-i, and which can be opened, in which housing (1) the connecting chamber (3) and the electronics chamber (4) are mutually separated, and a pressure-proof electric bushing (10) is provided through which at least one output line of the circuit (9) is led from the connecting chamber (3) into the electronics chamber (4), where it is connected to the electronic system (11) during operation.
摘要翻译：给出了具有小而轻的区域中易于爆炸的区域的电子设备的描述，其可以成本有效地制造并提供高度的灵活性，具有具有连接室（3）的壳体（1），其被设计为安全等级Ex-d或Ex-e，其中布置有可以连接电线的连接元件（6），并且其中布置有用于限制的电路（9）在操作期间经由线路馈送到设备的电流，电压和功率，根据安全等级Ex-i的要求进行限制，并具有电子室（4），其中布置根据安全等级Ex-i设计并且可以打开的电子系统（11），其中连接室（3）和电子室（4）的壳体（1）相互分离，至少提供防爆电气套管（10）电路（9）的一条输出线从连接室（3）引入电子室（4），在操作期间连接到电子系统（11）。

4. 发明授权

US06832516B1 Integral ultrasonic liquid level continuous transmitter with independent high-level discrete alarm point level 有权
标题翻译：积分超声波液位连续变送器具有独立的高级离散报警点级别
公开(公告)号：US06832516B1
公开(公告)日：2004-12-21
申请号：US10679236
申请日：2003-10-03
申请人： Naim Dam , William Allhusen , Glen Melder
发明人： Naim Dam , William Allhusen , Glen Melder
IPC分类号： G01F23284
CPC分类号： G01F23/2962
摘要： An ultrasonic liquid level sensor instrument that combines a continuous transmitter that transmits though the air for measuring the level of liquid in a vessel on a continuous basis and a point level sensor that sets a high level alarm. The continuous level transmitter/receiver provides a continuous measurement of the liquid level in the vessel and the point level sensor is used for sensing an overflow, or high level condition in the vessel, as well as failure of the continuous transmitter/receiver. The instrument includes a sensor fixture that holds both the continuous air transmitter/receiver transducer and the point level sensor. The fixture is mounted in a single hole in the wall of a tank or a vessel in which the liquid level is being monitored. Each of the continuous level transmitter/receiver and point level sections of the instrument has a self check capability.
摘要翻译：一种超声波液位传感器仪器，其结合了连续发射器，其通过空气传输，用于连续测量容器中的液体水平，以及设置高水平报警的点液位传感器。连续水平发射器/接收器提供对容器中液位的连续测量，并且点电平传感器用于感测容器中的溢流或高电平状态，以及连续发射器/接收器的故障。该仪器包括一个传感器固定装置，用于连接空气传感器/接收器传感器和点式传感器。固定装置安装在罐或其中正在监测液位的容器的壁中的单个孔中。仪器的每个连续级发射器/接收器和点电平部分都具有自检功能。

5. 发明授权

US06759977B1 Method and apparatus for radar-based level gauging 有权
标题翻译：基于雷达的液位计的方法和装置
公开(公告)号：US06759977B1
公开(公告)日：2004-07-06
申请号：US10327815
申请日：2002-12-20
申请人： Kurt Olov Edvardsson , Jan Westerling
发明人： Kurt Olov Edvardsson , Jan Westerling
IPC分类号： G01F23284
CPC分类号： H01Q1/225 , G01F23/284 , G01S7/024 , G01S7/2813 , G01S13/103 , G01S13/88 , H01Q1/22 , H01Q25/00
摘要： A method for radar-based gauging of the level of a substance in a tank (13) having at least one interfering structure (16a-c), comprises the steps of: (i) transmitting a microwave signal in a plurality of radiation lobes (15a-b; 15a-d), each of which being individually directed towards the substance and at least one of which being directed towards the interfering structure; (ii) for each of the radiation lobes detecting temporally resolved the microwave signal as reflected against the substance, and for at least one of the lobes detecting the microwave signal as reflected against the interfering structure; (iii) based on signal strengths of the detected microwave signals, distinguishing the detected microwave signals, which have been reflected against the substance; and (iv) based on a propagation time of at least one of the microwave signals distinguished as those, which have been reflected against the substance, calculating the level of the substance.
摘要翻译：一种用于基于雷达的在具有至少一个干扰结构（16a-c）的罐（13）中测量物质水平的方法，包括以下步骤：（i）在多个辐射波瓣（ 15a-b; 15a-d），其中的每一个分别指向物质，并且其中至少一个朝向干扰结构; （ii）对于每个检测到时间上分辨的反射物体的微波信号的辐射波瓣以及针对干扰结构反射的检测微波信号的波瓣中的至少一个; （iii）基于检测到的微波信号的信号强度，区分已被反映的物质的检测到的微波信号; 和（iv）基于区分为被反映物质的微波信号的至少一个的传播时间，计算物质的水平。

6. 发明授权

US06629458B1 Device in a level gauging system 有权
标题翻译：设备在电平测量系统中
公开(公告)号：US06629458B1
公开(公告)日：2003-10-07
申请号：US10252830
申请日：2002-09-24
申请人： Jan Westerling , Magnus Håkansson
发明人： Jan Westerling , Magnus Håkansson
IPC分类号： G01F23284
CPC分类号： H01Q1/225 , G01F23/284 , H01Q1/22 , H01Q1/40 , H01Q1/42
摘要： The present invention relates to a device in a level gauging system comprising an antenna using radar waves to gauge a level of a surface of a fluid kept in a container. The antenna is arranged above the fluid surface and comprises a plane surface facing the fluid surface and being substantially parallel with the fluid surface. The plane surface has means for transmitting radar waves towards the fluid surface and means for receiving reflected radar waves from the fluid surface in order to gauge the fluid level. The antenna comprises a radome which at least partially covers the plane surface and is shaped such that condensed fluid is directed away from the antenna by force of gravity. A thermally insulating filling material is provided between the radome and the plane surface.
摘要翻译：本发明涉及一种电平测量系统中的装置，其包括使用雷达波测量保持在容器中的流体表面的水平的天线。天线布置在流体表面上方并且包括面向流体表面并且与流体表面基本平行的平面。平面具有用于向流体表面传输雷达波的装置和用于从流体表面接收反射雷达波的装置，以便测量流体水平。天线包括至少部分地覆盖平面表面的天线罩，并被成形为使得冷凝的流体通过重力被引导离开天线。在天线罩和平面之间设有隔热填充材料。

7. 发明授权

US06834546B2 Device and method in a level gauging system 有权
公开(公告)号：US06834546B2
公开(公告)日：2004-12-28
申请号：US10378072
申请日：2003-03-04
申请人： Kurt Olov Edvardsson
发明人： Kurt Olov Edvardsson
IPC分类号： G01F23284
CPC分类号： G01F23/284
摘要： The invention relates to a pressure sealing device and a method for decreasing the cut-off frequency in such a pressure sealing device used in a radar level gauging system for gauging a filling level of a product kept in a container, the sealing device comprises a waveguide for feeding microwaves in at least one of the following mode types: transverse electric mode, transverse magnetic mode or hybrid mode. Said waveguide is sealed by a dielectric material. A center conductor is arranged at least partially within said dielectric material.

8. 发明授权

US06779397B2 Device for determining the filling level of a filling material in a container 有权
标题翻译：用于确定容器中填充材料的填充水平的装置
公开(公告)号：US06779397B2
公开(公告)日：2004-08-24
申请号：US10344564
申请日：2003-04-28
申请人： Stefan Burger , Alexander Hardell
发明人： Stefan Burger , Alexander Hardell
IPC分类号： G01F23284
CPC分类号： G01F23/284
摘要： The invention relates to a device for determining the filling level of a filling material in a container. The device has a signal-generating unit, which generates electromagnetic measuring signals, a transceiver unit, which emits the measuring signals via an antenna in the direction of the surface of the filling material and which receives the echo signals reflected at the surface of the filling material, the antenna comprising a waveguide which widens in the direction of emission into a cavity of a defined shape, and an evaluation unit which determines the filling level in the container from the propagation time of the measuring signals. At least one dielectric filling material is provided which at least partially fills up the waveguide, and which virtually completely fills up the widened cavity of the antenna.
摘要翻译：本发明涉及一种用于确定容器中的填充材料的填充水平的装置。该装置具有产生电磁测量信号的信号发生单元，收发单元，其通过天线沿着填充材料表面的方向发射测量信号，并且接收在填充物表面反射的回波信号材料，所述天线包括波导，其在发射方向上变宽为限定形状的空腔;以及评估单元，其从所述测量信号的传播时间确定所述容器中的填充水平。提供至少一个介电填充材料，其至少部分地填满波导，并且实际上完全填满天线的加宽腔。

9. 发明授权

US06539794B1 Arrangement for measuring the level of contents in a container 有权
标题翻译：用于测量容器内容物含量的排列
公开(公告)号：US06539794B1
公开(公告)日：2003-04-01
申请号：US09388673
申请日：1999-09-02
申请人： Johanngeorg Otto , Wolfgang Lubcke
发明人： Johanngeorg Otto , Wolfgang Lubcke
IPC分类号： G01F23284
CPC分类号： G01F25/0076 , G01F23/284 , G01F23/296 , G01F23/2962 , Y10S367/908
摘要： A continuous measurement of the level of contents in a container is effected by a level measuring device functioning in accordance with the transit time principle by means of waves transmitted from a position located above the highest possible contents level onto the surface of the material in the container. A measuring circuit determines the contents level from the transit time of the useful echo reflected from the material surface. In addition, one or more limit sensors are located at the container, each of which furnishes a signal indicating whether the contents level is above or below a level to be monitored by the limit sensor and which is situated between the minimum and maximum contents levels of the container. The measuring circuit receives the output signals of all limit sensors and uses these output signals to check and eventually to correct the contents level measured value determined by the level measuring device. In particular, the measuring result furnished by the level measuring device can be compared with an exact contents level value every time the contents level reaches the level monitored by a limit sensor whereby the level indication of the limit sensor changes its status. In certain cases, a single limit sensor is sufficient for this purpose, which monitors a contents level which is regularly exceeded or undershot in the normal use of the container.
摘要翻译：容器中的内容物含量的连续测量通过水平测量装置来实现，该液位测量装置根据通过时间原理利用从位于最高可能内容物高度的位置传递到容器中的材料表面上的波。测量电路从材料表面反射的有用回波的通过时间确定内容水平。此外，一个或多个限位传感器位于容器处，每个限位传感器提供一个信号，该信号指示内容水平是否高于或低于由极限传感器监测的水平，并且位于最小和最大内容水平之间容器测量电路接收所有极限传感器的输出信号，并使用这些输出信号检查并最终校正由液位测量装置确定的内容水平测量值。特别地，每当内容等级达到由极限传感器监视的电平时，由电平测量装置提供的测量结果可与确切的内容电平值进行比较，由此极限传感器的电平指示改变其状态。在某些情况下，单个限位传感器对于此目的来说足以满足正常使用容器中常规超出或低于某一内容的水平。

10. 发明授权

US06229476B1 Liquid level meter 有权
标题翻译：液位计
公开(公告)号：US06229476B1
公开(公告)日：2001-05-08
申请号：US09447189
申请日：1999-11-22
申请人： Wolfram Lütke , Joachim Neuhaus , Ralf Reimelt , Werner Thoren
发明人： Wolfram Lütke , Joachim Neuhaus , Ralf Reimelt , Werner Thoren
IPC分类号： G01F23284
CPC分类号： G01F23/68 , G01F23/284
摘要： A liquid level meter is provided for measuring a level of a liquid (1) in a container (3), which meter measures acceptably in the case of liquids with low dielectric constants, and the installation and maintenance of which are simple and cost effective. This meter comprises an electronic circuit (13), which generates electromagnetic signals in operation, a conductor (7), which projects into the container (3), along which a float (11, 11a, 11b, 11c, 11d, 11e) moves along with the level, which has at least one segment reflecting electromagnetic signals, an injector (9), which transmits the signals from the circuit (13) to the conductor (7), which conductor (7) leads the signals into the container (3) and leads out a signal reflected at the float (11) and a receiving and evaluating circuit (15), which receives the reflected signals, which determines a travel time of the signals and which ascertains the level from the travel time.
摘要翻译：提供了用于测量容器（3）中的液体（1）的液位的液位计，该仪表在具有低介电常数的液体的情况下可接受地测量，并且其安装和维护是简单和成本有效的。该仪表包括一个产生电磁信号的电子电路（13），一个突出到容器（3）中的导体（7），浮子（11,11a，11b，11c，11d，11e）沿着该电子线移动以及具有反射电磁信号的至少一个部分的电平，将来自电路（13）的信号传输到导体（7）的喷射器（9），该导体（7）将信号引导到容器（引出在浮子（11）处反射的信号和接收和评估电路（15），接收和评估电路（15）接收反射信号，其确定信号的行进时间并确定行进时间的电平。

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