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63 条记录 (耗时 0.041 秒)

    Performance and versatility of single-frequency DFT detectors
    1.
    发明授权
    Performance and versatility of single-frequency DFT detectors 有权

    公开(公告)号：US10180485B2

    公开(公告)日：2019-01-15

    申请号：US14846743

    申请日：2015-09-05

    申请人： Leonid Matsiev

    发明人： Leonid Matsiev

    IPC分类号： G01R35/00 ,  G01R27/02

    摘要： Described herein are systems and methods for improving performance of single-frequency (single-point, single-bin) discrete Fourier transform (DFT) detectors by elimination of systematic errors from the detector output. Calibration procedures known in the art for practical implementations of such detectors do not provide adequate reduction of these systematic errors thus reducing utilization of these detectors in useful applications and products. The described methods, systems and devices allow such detectors to measure both DC and AC signals and, in latter case, considerably expand the operation frequency range without any additional hardware. These methods enable wide practical applications of DFT detectors across diverse variety of fields: from monitoring health of mechanical structures and fluid properties to impedimetric measurements in electrochemistry, monitoring of corrosion and bioimpedance.

    SYSTEMS AND METHODS FOR THE IDENTIFICATION OF COMPOUNDS USING ADMITTANCE SPECTROSCOPY
    9.
    发明申请
    SYSTEMS AND METHODS FOR THE IDENTIFICATION OF COMPOUNDS USING ADMITTANCE SPECTROSCOPY 审中-公开
    使用施用光谱鉴定化合物的系统和方法

    公开(公告)号：US20150081220A1

    公开(公告)日：2015-03-19

    申请号：US14551084

    申请日：2014-11-24

    申请人： Leonid Matsiev ,  James Bennett

    发明人： Leonid Matsiev ,  James Bennett

    IPC分类号： G01N27/02 ,  G01N33/28

    CPC分类号： G01N21/31 ,  G01N27/02 ,  G01N27/026 ,  G01N33/2835 ,  G01N2021/3181

    摘要： Described herein are systems and methods for determining the location, composition and concentration of a hydrocarbon containing plume in environmental seawater. These systems and methods disclosed use multiple complex admittance measurements from seawater in order to identify the contents, concentration, and location of the hydrocarbon containing plume. In preferred variations system includes a sensor array that substantially simultaneously records plume location, depth, and composition.

    摘要翻译： 本文描述了用于确定环境海水中含有烃的羽流的位置，组成和浓度的系统和方法。 所公开的这些系统和方法使用来自海水的多个复杂的导纳测量值来识别含有烃的羽流的含量，浓度和位置。 在优选的变型中，系统包括基本上同时记录羽流位置，深度和组成的传感器阵列。

    Method of packaging a sensor
    10.
    发明授权
    Method of packaging a sensor 有权
    包装传感器的方法

    公开(公告)号：US08732938B2

    公开(公告)日：2014-05-27

    申请号：US12783397

    申请日：2010-05-19

    申请人： Oleg Kolosov ,  Leonid Matsiev ,  John F. Varni ,  G. Cameron Dales ,  Olaf Ludtke ,  Dirk Wullner ,  Andreas Buhrdorf ,  Heiko Dobrinski

    发明人： Oleg Kolosov ,  Leonid Matsiev ,  John F. Varni ,  G. Cameron Dales ,  Olaf Ludtke ,  Dirk Wullner ,  Andreas Buhrdorf ,  Heiko Dobrinski

    IPC分类号： H04R31/00

    CPC分类号： G01F23/2966 ,  G01N2009/006 ,  G01N2291/0427 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/4908

    摘要： An improved method of packaging a sensor is provided. The method includes the step of affixing a tuning fork to a platform. The tuning fork includes tines comprising one or more surfaces, with each tine further comprising an electrode and a piezoelectric material. An application specific integrated circuit (ASIC) is affixed to the platform. Electrical communication between the ASIC and the electrode of each tine is established for providing stimulus to the tuning fork and for receiving a response signal from the tuning fork. A protective layer is applied to cover the platform and a portion of the tuning fork while maintaining a portion of a surface of each tine free from the protective layer such that the surface can displace the fluid in contact therewith.

    摘要翻译： 提供了一种改进的封装传感器的方法。 该方法包括将音叉固定在平台上的步骤。 音叉包括包括一个或多个表面的尖齿，每个齿还包括电极和压电材料。 专用集成电路（ASIC）贴在平台上。 建立ASIC和每个齿的电极之间的电气通信，用于向音叉提供刺激并且用于从音叉接收响应信号。 施加保护层以覆盖平台和音叉的一部分，同时保持每个齿的一部分表面没有保护层，使得表面可以使与其接触的流体移位。