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42 条记录 (耗时 0.022 秒)

    Turbidity sensor
    4.
    发明申请
    Turbidity sensor 有权

    公开(公告)号：US20060103842A1

    公开(公告)日：2006-05-18

    申请号：US10990532

    申请日：2004-11-18

    申请人： Eugene Tokhtuev ,  Anatoly Skirda ,  Christopher Owen ,  William Christensen

    发明人： Eugene Tokhtuev ,  Anatoly Skirda ,  Christopher Owen ,  William Christensen

    IPC分类号： G01N21/00

    CPC分类号： G01N21/53

    摘要： A turbidity measuring system is provided with a chamber and a sensor having a watertight housing, a light source, a first light focusing device for focusing a light emitted from the light source and passing therethough into a sample liquid, a second light focusing device for collecting at least one scattered light resulted form the focused light when passing the sample liquid, a photodiode for receiving the collected light thereby generating electronic signals, and an electronic board for processing the electronic signals. In particular, the watertight housing has a tilted bottom, the light detector includes at least two photodiodes for detecting separated turbidity measuring ranges, or an insert is placed at the bottom of the chamber having first and second insert channels each of whose axis pointing toward an axis of one of the cylindrically-shaped channels in the watertight housing in order to trap light.

    Multichannel fluorosensor
    6.
    发明授权
    Multichannel fluorosensor 有权
    多通道氟传感器

    公开(公告)号：US07198755B2

    公开(公告)日：2007-04-03

    申请号：US10241451

    申请日：2002-09-12

    申请人： Eugene Tokhtuev ,  Anatoly Skirda ,  Viktor Slobodyan ,  Christopher Owen

    发明人： Eugene Tokhtuev ,  Anatoly Skirda ,  Viktor Slobodyan ,  Christopher Owen

    IPC分类号： G01N21/00 ,  G01N21/75 ,  G01N21/62 ,  G01N21/76 ,  B32B5/02

    CPC分类号： G01N21/8507 ,  G01N21/15 ,  G01N21/274 ,  G01N21/276 ,  G01N21/645 ,  G01N33/1886 ,  G01N2021/6417 ,  G01N2021/6421 ,  G01N2021/6478 ,  G01N2201/0218 ,  G01N2201/024 ,  G01N2201/0627 ,  G01N2201/0693 ,  Y10T436/11

    摘要： A multichannel fluorosensor includes an optical module and an electronic module combined in a watertight housing with an underwater connector. The fluorosensor has an integral calibrator for periodical sensitivity validation of the fluorosensor. The optical module has one or several excitation channels and one or several emission channels that use a mutual focusing system. To increase efficiency, the excitation and emission channels each have a micro-collimator made with one or more ball lenses. Each excitation channel has a light emitting diode and an optical filter. Each emission channel has a photodiode with a preamplifier and an optical filter. The electronic module connects directly to the optical module and includes a lock-in amplifier, a power supply and a controller with an A/D converter and a connector. The calibrator provides a response proportional to the excitation intensity, and matches with spectral parameter of fluorescence for the analyzed fluorescent substance.

    摘要翻译： 多通道氟传感器包括光学模块和组合在具有水下连接器的防水壳体中的电子模块。 氟传感器具有用于氟传感器周期灵敏度验证的积分校准器。 光学模块具有一个或多个激发通道和使用相互聚焦系统的一个或多个发射通道。 为了提高效率，激发和发射通道各自具有由一个或多个球透镜制成的微型准直器。 每个激励通道都有一个发光二极管和一个滤光器。 每个发射通道具有带有前置放大器和光学滤波器的光电二极管。 电子模块直接连接到光模块，包括锁定放大器，电源和带有A / D转换器和连接器的控制器。 校准器提供与激发强度成比例的响应，并与分析的荧光物质的荧光光谱参数相匹配。

    Driving circuit for powering a bi-directional load
    8.
    发明授权
    Driving circuit for powering a bi-directional load 有权
    为双向负载供电的驱动电路

    公开(公告)号：US08730701B2

    公开(公告)日：2014-05-20

    申请号：US12370362

    申请日：2009-02-12

    申请人： Anatoly Skirda ,  Eugene Tokhtuev ,  Christopher Owen ,  Viktor Slobodyan

    发明人： Anatoly Skirda ,  Eugene Tokhtuev ,  Christopher Owen ,  Viktor Slobodyan

    IPC分类号： H02M7/5387

    CPC分类号： G05D23/20 ,  F25B2321/0212 ,  G05D23/1909

    摘要： An H-bridge control circuit comprises an input stage, comparator stage, inverter stage. The operation of the H-bridge can be controlled by a single analog input signal provided by a feedback stage. Shoot-through protection is provided for the H-bridge circuit through the inclusion of a dead gap determined by inputs to the comparator stage. The dead gap can be adjusted, allowing for adjustment of the precision operation of the load. The H-bridge can be used to drive a bi-directional load such as, for example, a Peltier conditioner.

    摘要翻译： H桥控制电路包括输入级，比较级，反相级。 H桥的操作可以由反馈级提供的单个模拟输入信号来控制。 通过将由输入确定的死区包括在比较器级中，为H桥电路提供直通保护。 可以调节死区间隙，允许调整负载的精确运行。 H桥可用于驱动双向负载，例如Peltier调节器。

    FLOW METER
    9.
    发明申请
    FLOW METER 有权
    流量计

    公开(公告)号：US20100199758A1

    公开(公告)日：2010-08-12

    申请号：US12369501

    申请日：2009-02-11

    申请人： Eugene Tokhtuev ,  Christopher Owen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Richard Mehus

    发明人： Eugene Tokhtuev ,  Christopher Owen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Richard Mehus

    IPC分类号： G01F3/10 ,  G01J3/00

    CPC分类号： G01F3/10

    摘要： Embodiments of the invention provide devices and methods for measuring fluid volume. Devices according to some embodiments include a chamber, having a pair of gears rotatably mounted therewithin. Fluid flow through the chamber causes rotation of the gears, such that each rotation and/or partial rotation results in a known volume of the fluid passing through the chamber. An optical sensor positioned outside of the chamber, can view the rotating gears through a substantially transparent chamber wall. The optical sensor can view an optical characteristic of one or both of the gears, and based upon this data, fluid volume, flow rate, and/or flow direction can be determined. Devices and methods disclosed herein can provide for improved precision in fluid flow meter measurement. In addition, the devices and methods used herein can be more durable and easier to fabricate than previously known positive displacement flow meters.

    摘要翻译： 本发明的实施例提供了用于测量流体体积的装置和方法。 根据一些实施例的装置包括具有可旋转地安装在其中的一对齿轮的腔室。 通过腔室的流体流动导致齿轮的旋转，使得每个旋转和/或部分旋转导致通过腔室的已知体积的流体。 定位在室外的光学传感器可通过基本上透明的室壁观察旋转齿轮。 光学传感器可以观察一个或两个齿轮的光学特性，并且基于该数据，可以确定流体体积，流速和/或流动方向。 本文公开的装置和方法可以提供流体流量计测量的改进精度。 此外，本文所使用的装置和方法可以比先前已知的正排量流量计更加耐用和容易制造。