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    Compact trace element sensor which utilizes microwave generated plasma and which is portable by an individual
    1.
    发明授权
    Compact trace element sensor which utilizes microwave generated plasma and which is portable by an individual 失效
    利用微波产生的等离子体并由个人携带的紧凑的微量元素传感器

    公开(公告)号：US6081329A

    公开(公告)日：2000-06-27

    申请号：US174679

    申请日：1998-10-19

    申请人： Daniel R. Cohn ,  Paul Woskov ,  Charles H. Titus ,  Jeffrey E. Surma

    发明人： Daniel R. Cohn ,  Paul Woskov ,  Charles H. Titus ,  Jeffrey E. Surma

    IPC分类号： G01N21/68 ,  G01J3/30 ,  G01N21/69 ,  H01P1/00

    CPC分类号： G01N21/68

    摘要： A method and portable apparatus for self-powered, sensitive analysis of solid, liquid or gas samples for the presence of elements is provided. The apparatus includes a compact sensor system which utilizes a microwave power source and a shorted waveguide to induce a plasma. The microwave power source may be a magnetron or the like. The device includes a portable power supply and preferably includes a portable battery charger. The portable power supply includes a compact generator-internal combustion engine unit. The device can be operated by directly using power from the portable power supply or in a more compact embodiment by using power from batteries that are recharged by a separate portable power supply module. Pulsed microwave operation can be used to reduce average power requirements and facilitate the use of very compact units using batteries. The device is capable of being transported to and from remote sites for analysis by an individual without the need for heavy transportation equipment. A computer may be utilized to control the portable power supply, the battery charger and the microwave power source. The method and apparatus are capable of analyzing samples for the presence of several elements simultaneously using fiber optic guides and a spectrometer system. The apparatus can be contained in a plurality of readily detactable modules to facilitate transportation and field operation.

    摘要翻译： 提供了一种用于固体，液体或气体样品用于元件存在的自供电敏感分析的方法和便携式设备。 该装置包括利用微波功率源和短路波导来诱导等离子体的小型传感器系统。 微波功率源可以是磁控管等。 该装置包括便携式电源，并且优选地包括便携式电池充电器。 便携式电源包括紧凑型发电机 - 内燃机单元。 可以通过直接使用来自便携式电源的电力或通过使用由单独的便携式电源模块再充电的电池的电力在更紧凑的实施例中来操作该装置。 脉冲微波操作可用于降低平均功率需求，并有助于使用非常紧凑的单元使用电池。 该设备能够被运送到远程站点和从远程站点进行分析，无需重型运输设备。 可以使用计算机来控制便携式电源，电池充电器和微波电源。 该方法和装置能够使用光纤引导件和光谱仪系统同时分析几个元件的存在。 该装置可以容纳在多个易于拆卸的模块中，以便于运输和现场操作。

    Compact trace element sensor which utilizes microwave generated plasma and which is portable by an individual
    3.
    发明授权
    Compact trace element sensor which utilizes microwave generated plasma and which is portable by an individual 失效
    利用微波产生的等离子体并由个人携带的紧凑的微量元素传感器

    公开(公告)号：US5825485A

    公开(公告)日：1998-10-20

    申请号：US552677

    申请日：1995-11-03

    申请人： Daniel R. Cohn ,  Paul Woskov ,  Charles H. Titus ,  Jeffrey E. Surma

    发明人： Daniel R. Cohn ,  Paul Woskov ,  Charles H. Titus ,  Jeffrey E. Surma

    IPC分类号： G01N21/68 ,  G01J3/30 ,  G01N21/69 ,  H01P1/00

    CPC分类号： G01N21/68

    摘要： A method and portable apparatus for self-powered, sensitive analysis of solid, liquid or gas samples for the presence of elements is provided. The apparatus includes a compact sensor system which utilizes a microwave power source and a shorted waveguide to induce a plasma. The microwave power source may be a magnetron or the like. The device includes a portable power supply and preferably includes a portable battery charger. The portable power supply includes a compact generator- internal combustion engine unit. The device can be operated by directly using power from the portable power supply or in a more compact embodiment by using power from batteries that are recharged by a separate portable power supply module. Pulsed microwave operation can be used to reduce average power requirements and facilitate the use of very compact units using batteries. The device is capable of being transported to and from remote sites for analysis by an individual without the need for heavy transportation equipment. A computer may be utilized to control the portable power supply, the battery charger and the microwave power source. The method and apparatus are capable of analyzing samples for the presence of several elements simultaneously using fiber optic guides and a spectrometer system. The apparatus can be contained in a plurality of readily detachable modules to facilitate transportation and field operation.

    摘要翻译： 提供了一种用于固体，液体或气体样品用于元件存在的自供电敏感分析的方法和便携式设备。 该装置包括利用微波功率源和短路波导来诱导等离子体的小型传感器系统。 微波功率源可以是磁控管等。 该装置包括便携式电源，并且优选地包括便携式电池充电器。 便携式电源包括紧凑型发电机 - 内燃机单元。 可以通过直接使用来自便携式电源的电力或通过使用由单独的便携式电源模块再充电的电池的电力在更紧凑的实施例中来操作该装置。 脉冲微波操作可用于降低平均功率需求，并有助于使用非常紧凑的单元使用电池。 该设备能够被运送到远程站点和从远程站点进行分析，无需重型运输设备。 可以使用计算机来控制便携式电源，电池充电器和微波电源。 该方法和装置能够使用光纤引导件和光谱仪系统同时分析几个元件的存在。 该装置可以容纳在多个容易拆卸的模块中，以便于运输和现场操作。

    Microwave plasma monitoring system for the elemental composition analysis of high temperature process streams
    5.
    发明授权
    Microwave plasma monitoring system for the elemental composition analysis of high temperature process streams 失效
    微波等离子体监测系统，用于高温过程流的元素组成分析

    公开(公告)号：US5671045A

    公开(公告)日：1997-09-23

    申请号：US540575

    申请日：1995-10-06

    申请人： Paul P. Woskov ,  Daniel R. Cohn ,  Charles H. Titus ,  Jeffrey E. Surma

    发明人： Paul P. Woskov ,  Daniel R. Cohn ,  Charles H. Titus ,  Jeffrey E. Surma

    IPC分类号： G01N21/68 ,  G01N21/73 ,  G01J3/30 ,  G01N21/69 ,  H01P1/00

    CPC分类号： G01N21/73

    摘要： Microwave-induced plasma for continuous, real time trace element monitoring under harsh and variable conditions. The sensor includes a source of high power microwave energy and a shorted waveguide made of a microwave conductive, high temperature capability refractory material communicating with the source of the microwave energy to generate a plasma. The high power waveguide is constructed to be robust in a hot, hostile environment. It includes an aperture for the passage of gases to be analyzed and a spectrometer is connected to receive light from the plasma. Provision is made for real time in situ calibration. The spectrometer disperses the light, which is then analyzed by a computer. The sensor is capable of making continuous, real time quantitative measurements of desired elements, such as the heavy metals lead and mercury. The invention may be incorporated into a high temperature process device and implemented in situ for example, such as with a DC graphite electrode plasma arc furnace. The invention further provides a system for the elemental analysis of process streams by removing particulate and/or droplet samples therefrom and entraining such samples in the gas flow which passes through the plasma flame. Introduction of and entraining samples in the gas flow may be facilitated by a suction pump, regulating gas flow, gravity or combinations thereof.

    摘要翻译： 微波诱导等离子体在恶劣条件下进行连续，实时的微量元素监测。 该传感器包括高功率微波能量源和由与微波能量源连通以产生等离子体的微波导电高温能耐火材料制成的短路波导。 高功率波导被构造为在热的，恶劣的环境中是坚固的。 它包括用于待分析气体通过的孔，并且连接光谱仪以接收来自等离子体的光。 经费用于实时在线校准。 光谱仪分散光，然后由计算机分析。 传感器能够对所需元素进行连续的实时定量测量，如重金属铅和汞。 本发明可以结合到高温工艺装置中并且例如用DC石墨电极等离子体电弧炉就地实现。 本发明还提供了一种用于通过从其中除去颗粒和/或液滴样品并将这些样品夹带在通过等离子体火焰的气流中进行元素分析工艺流的系统。 气流中的引入和夹带样品可以通过抽吸泵，调节气流，重力或其组合来促进。

    Self-calibrated active pyrometer for furnace temperature measurements
    9.
    发明授权
    Self-calibrated active pyrometer for furnace temperature measurements 失效
    自校准的有源高温计用于炉温测量

    公开(公告)号：US5785426A

    公开(公告)日：1998-07-28

    申请号：US539818

    申请日：1995-10-06

    申请人： Paul P. Woskov ,  Daniel R. Cohn ,  Charles H. Titus ,  Jeffrey E. Surma

    发明人： Paul P. Woskov ,  Daniel R. Cohn ,  Charles H. Titus ,  Jeffrey E. Surma

    IPC分类号： G01R29/08 ,  G01J5/46 ,  G01J5/52 ,  G01K11/00 ,  G01K11/12 ,  G01K17/00 ,  G01J5/08 ,  G01J5/62

    CPC分类号： G01K11/006 ,  G01J5/522 ,  G01K11/12 ,  G01K17/003

    摘要： Pyrometer with a probe beam superimposed on its field-of-view for furnace temperature measurements. The pyrometer includes a heterodyne millimeter/sub-millimeter-wave or microwave receiver including a millimeter/sub-millimeter-wave or microwave source for probing. The receiver is adapted to receive radiation from a surface whose temperature is to be measured. The radiation includes a surface emission portion and a surface reflection portion which includes the probe beam energy reflected from the surface. The surface emission portion is related to the surface temperature and the surface reflection portion is related to the emissivity of the surface. The simultaneous measurement of surface emissivity serves as a real time calibration of the temperature measurement. In an alternative embodiment, a translatable base plate and a visible laser beam allow slow mapping out of interference patterns and obtaining peak values therefor. The invention also includes a waveguide having a replaceable end portion, an insulating refractory sleeve and/or a source of inert gas flow. The pyrometer may be used in conjunction with a waveguide to form a system for temperature measurements in a furnace. The system may employ a chopper or alternatively, be constructed without a chopper. The system may also include an auxiliary reflector for surface emissivity measurements.

    摘要翻译： 测高仪用探针光束叠加在其视场上进行炉温测量。 高温计包括外差毫米/亚毫米波或微波接收器，其包括用于探测的毫米/亚毫米波或微波源。 接收器适于接收来自待测温度的表面的辐射。 辐射包括表面发射部分和包括从表面反射的探测光束能量的表面反射部分。 表面发射部分与表面温度有关，表面反射部分与表面的发射率有关。 表面发射率的同时测量可作为温度测量的实时校准。 在替代实施例中，可平移底板和可见激光束允许从干涉图案中缓慢映射并获得其峰值。 本发明还包括具有可更换端部，绝缘耐火套和/或惰性气流源的波导。 高温计可以与波导结合使用以形成用于炉中的温度测量的系统。 该系统可以采用斩波器或替代地，在没有斩波器的情况下构建。 该系统还可以包括用于表面发射率测量的辅助反射器。