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    • 104. 发明申请
    • COMPACT HIGH PERFORMANCE CHEMICAL DETECTOR
    • 紧凑的高性能化学检测器
    • US20080169417A1
    • 2008-07-17
    • US11747276
    • 2007-05-11
    • Daniel R. CohnLeslie Bromberg
    • Daniel R. CohnLeslie Bromberg
    • H01J49/26
    • G01N27/624
    • Ion mobility spectrometer. The spectrometer includes an enclosed region having a gas with a selected chemical species contained therein. An energy source ionizes the gas and the chemical species. Spaced apart electrodes generate high frequency and DC electric fields across the enclosed region and circuitry is provided for generating voltage waveforms on the electrodes. The voltage waveforms include a symmetric RF field to minimize ion loss and to prevent clustering of the ions with water molecules during an ion buildup phase. A DC and asymmetric, non-uniform RF field is provided to separate and focus the ions in the region during an ion separation phase. Finally, a changing DC or RF field causes the ionized chemical species to move to the electrodes and read-out circuitry responds to current in the electrodes to indicate the presence and/or amount of the chemical species.
    • 离子迁移谱仪。 光谱仪包括具有包含其中选择的化学物质的气体的封闭区域。 能量源使气体和化学物质离子化。 隔开的电极在封闭区域之间产生高频和直流电场,并且提供用于在电极上产生电压波形的电路。 电压波形包括对称的RF场以最小化离子损失,并且在离子累积阶段期间防止离子与水分子聚集。 提供DC和不对称的非均匀RF场以在离子分离阶段期间分离和聚焦该区域中的离子。 最后,改变的DC或RF场导致电离化学物质移动到电极,并且读出电路对电极中的电流进行响应以指示化学物质的存在和/或量。
    • 107. 发明授权
    • Integrated plasmatron-turbine system for the production and utilization
of hydrogen-rich gas
    • 用于生产和利用富氢气体的集成等离子体 - 涡轮机系统
    • US5852927A
    • 1998-12-29
    • US515417
    • 1995-08-15
    • Daniel R. CohnAlexander RabinovichCharles H. Titus
    • Daniel R. CohnAlexander RabinovichCharles H. Titus
    • F01D15/02F01D15/10F02B43/10F02C3/06
    • F02B43/10F01D15/02F01D15/10F05D2220/50Y02T10/32
    • An integrated plasmatron-turbine system which is capable of producing and utilizing clean burning hydrogen-rich gas is provided. The system may be incorporated into vehicles, stationary turbines, and the like to reduce emissions. The system may also be used to generate electricity in a power generating station. The system includes a plasmatron which reforms fuel into a hydrogen-rich gas and a turbine driven by the hydrogen-rich gas jet from the plasmatron. The turbine converts the heat and kinetic energy of the hydrogen-rich gas into electricity using an alternator. The alternator provides electricity to the plasmatron and may also be used to charge a battery for plasmatron initiation. Additional electricity may be used for other needs of the vehicle or stationary turbine. The hydrogen-rich gas can then utilized as clean burning fuel in a combustor coupled into the same turbine, in a second turbine or in an internal combustion engine.
    • 提供了能够生产和利用清洁燃烧富氢气体的集成等离子体 - 涡轮机系统。 该系统可以并入车辆,固定涡轮机等中以减少排放。 该系统也可用于在发电站中发电。 该系统包括将燃料转化为富氢气体的等离子体,以及由来自等离子体质子的富氢气体射流驱动的涡轮机。 涡轮机使用交流发电机将富氢气体的热能和动能转换为电力。 交流发电机为等离子体提供电力,并且也可以用于对用于等离子体激发的电池充电。 额外的电可以用于车辆或固定涡轮机的其他需要。 然后,富氢气体可以在燃烧器中被用作燃烧器,该燃烧器连接到相同的涡轮机中,在第二涡轮机或内燃机中。
    • 109. 发明授权
    • Rapid response plasma fuel converter systems
    • 快速响应等离子体燃料转换器系统
    • US5887554A
    • 1999-03-30
    • US589118
    • 1996-01-19
    • Daniel R. CohnAlexander RabinovichCharles H. Titus
    • Daniel R. CohnAlexander RabinovichCharles H. Titus
    • F02B25/12F02B43/10F02B51/00
    • F02M25/12F02B43/10F02B51/00F02B2043/106Y02T10/121Y02T10/32Y10S123/12
    • Systems for producing hydrogen-rich gases including rapid response plasma fuel converters are provided. The rapid response plasma fuel converters systems are suitable for use in vehicles and the like in which the systems are capable of instantaneously providing hydrogen-rich gas, reducing pollutants during vehicle startup and allowing use of hydrogen-rich gas during load changes. The systems are preferably capable of responding on the order of a second or less. The systems include a plasma fuel converter for receiving hydrocarbon fuel and reforming the hydrocarbon fuel into a hydrogen-rich gas, an internal combustion engine adapted to receive the hydrogen-rich gas from the plasma fuel converter, a generator powered by the engine and connected to deliver electrical energy to power the plasma fuel converter, and a power supply circuit capable of rapidly providing power to the plasma fuel converter in response to a stimulus. The stimulus can be movement in the accelerator pedal controlled by the driver of the vehicle. The plasma fuel converters can be operated pulsed or non-pulsed modes of operation and can utilize arc or high frequency discharges. The plasma fuel converter can be either separated from the engine or directly integrated into the engine to allow for more efficient use of the thermal energy produced by the plasma fuel converter.
    • 提供了包括快速响应等离子体燃料转换器的富氢气体生产系统。 快速响应的等离子体燃料转化器系统适用于车辆等,其中系统能够瞬时提供富氢气体,减少车辆起动期间的污染物,并允许在负载变化期间使用富氢气体。 这些系统优选地能够响应于第二次或更少次的顺序。 该系统包括用于接收烃燃料并将烃燃料重整成富氢气体的等离子体燃料转化器,适于从等离子体燃料转换器接收富氢气体的内燃机,由发动机供电并连接到 提供电能以为等离子体燃料转换器供电,以及能够响应于刺激而向等离子体燃料转换器快速提供电力的电源电路。 刺激可以是由车辆驾驶员控制的加速器踏板中的运动。 等离子体燃料转换器可以操作脉冲或非脉冲操作模式,并且可以利用电弧或高频放电。 等离子体燃料转换器可以与发动机分离或直接集成到发动机中,以便更有效地利用由等离子体燃料转换器产生的热能。
    • 110. 发明授权
    • Open tube resonator test setup for conductivity measurements
    • 用于电导率测量的开管谐振器测试设置
    • US4968945A
    • 1990-11-06
    • US278818
    • 1988-12-02
    • Paul P. WoskovDaniel R. Cohn
    • Paul P. WoskovDaniel R. Cohn
    • H01J23/20H01J25/00H01P1/16H01P3/08H01P3/12H01P7/06
    • H01P3/122H01J23/20H01J25/005H01P1/16H01P3/08H01P7/06
    • An apparatus and method for measurement of ohmic loss and surface resistivity is provided with a straight lumen waveguide with at least one opening at one end. Diffraction of radiation introduced to the lumen at one end of the tube provides feedback to establish resonances within the tube. Using the "whispering gallery" resonant modes maximizes the total ohmic loss and thereby enhances sensitivity of resistivity measurements. The angle at which resonant radiation exits the lumen is a function of the mode and size of the operative. Thus, preferred spatial detection allows enhancement of the device signal while discriminating against undesired modes. Selection of modes allows high frequency measurements, into the tetraherz range, to be made without disabling restrictions in the device dimensions, spatial input/output coupling or ohmic loss depending on alignment for analysis of, for example, high temperature superconductors. Furthermore, more than one longitudinal mode for a given transverse mode can be detected allowing for an unambiguous determination of ohmic losses from a measurement of the total Q.
    • 用于测量欧姆损耗和表面电阻率的装置和方法具有在一端具有至少一个开口的直管腔波导。 在管的一端引入管腔的辐射衍射提供反馈以在管内建立共振。 使用“耳语画廊”谐振模式最大化了总的欧姆损耗,从而提高电阻率测量的灵敏度。 谐振辐射离开管腔的角度是手术的模式和尺寸的函数。 因此,优选的空间检测允许在区分不期望的模式的同时增强设备信号。 模式的选择允许在四舍五尔范围内进行高频测量,而不会因为诸如高温超导体的分析的对准而在器件尺寸,空间输入/输出耦合或欧姆损耗方面不受限制。 此外,可以检测给定横向模式的多于一个纵向模式,允许从总Q的测量中明确确定欧姆损耗。