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    • 83. 发明申请
    • ULTRASONIC SYSTEM FOR DETECTING AND QUANTIFYING OF AIR BUBBLES/PARTICLES IN A FLOWING LIQUID
    • 用于检测和定量流动液体中的气泡/颗粒的超声波系统
    • WO2008097473A1
    • 2008-08-14
    • PCT/US2008/001366
    • 2008-02-02
    • COSENSE, INC.DAM, Naim
    • DAM, Naim
    • G01N29/02
    • G01N29/032G01N29/048G01N29/222G01N29/4454G01N2015/1062G01N2015/1087G01N2291/02416G01N2291/02433G01N2291/048G01N2291/102
    • A system using ultrasonic energy for detecting and quantifying air bubbles and/or particles in a liquid flowing in a tube by a non-invasive and non- destructive technique has an ultrasonic sensor having piezoelectric transmitter and receiver elements placed opposing on the outside of the tube wall and energy in the ultrasonic frequency range is transmitted from the transmitter element to the receiver element. The received ultrasonic energy is amplified and detected and preferably split into a steady state (DC) component and a varying or transient (AC) component respectively indicative of the absence and the presence of an air bubble or a particle in the liquid. The two components of the signal are applied to an A/D converter whose output is supplied to a microprocessor which uses the digital data that corresponds to the presence of the varying transient component to indicate the presence of an air bubble and/or a particle and to measure its characteristics. The presence of the steady-state component indicates that the system is operating properly to providing a continuous self check against any system malfunction.
    • 一种使用超声波能量来检测和定量通过非侵入性和非破坏性技术在管中流动的液体中的气泡和/或颗粒的系统具有超声波传感器,其具有放置在管外侧的压电发射器和接收器元件 超声波频率范围内的壁和能量从发射机元件发射到接收器元件。 接收到的超声能量被放大和检测,并且优选地分成稳定状态(DC)分量和分别指示液体中气泡或颗粒的不存在和存在的变化或瞬态(AC)组分。 信号的两个分量被施加到A / D转换器,其输出被提供给微处理器,微处理器使用对应于变化的瞬时分量的存在的数字数据来指示气泡和/或颗粒的存在, 来衡量其特点。 稳态组件的存在表明系统正常运行,以提供对任何系统故障的连续自检。
    • 90. 发明申请
    • PARTICLE COUNTER WITH IMPROVED IMAGE SENSOR ARRAY
    • 具有改进的图像传感器阵列的颗粒计数器
    • WO2006132980A3
    • 2007-02-15
    • PCT/US2006021483
    • 2006-06-02
    • PARTICLE MEASURING SYSTCERNI TODD ASEHLER DWIGHT A
    • CERNI TODD ASEHLER DWIGHT A
    • G01N15/02
    • G01N15/1459G01N15/1434G01N15/1463G01N21/031G01N21/47G01N2015/1062
    • A particle counter (200) for optically detecting an unconstrained particle suspended in a flowing liquid includes: a sample chamber (240) having a fluid inlet and a fluid outlet; a laser module (201) producing a laser beam (212) ; a beam shaping optical system (228) providing a multiple laser beam pattern in the sample chamber; and a CMOS optical detector located to detect light scattered by the particles in the sample chamber, the detector producing an electric signal characteristic of a parameter of the particle. The particle counter has a particle sensing area within the sample chamber in which the intensity of light is at least 10 Watts/mm2 and having an area of 0.5 square mm or more. The detector has thirty or more detector array elements. The laser optical system reflects and refocuses the laser beam to effect multiple passes of the same laser beam through the sensing area.
    • 用于光学检测悬浮在流动液体中的无约束粒子的粒子计数器(200)包括:具有流体入口和流体出口的样品室(240); 产生激光束的激光模块(201); 光束整形光学系统(228),其在所述样品室中提供多个激光束图案; 以及CMOS光学检测器,用于检测由样品室中的颗粒散射的光,该检测器产生特征为该粒子参数的电信号。 颗粒计数器在样品室内具有颗粒感测区域,其中光强度至少为10瓦特/平方毫米,面积为0.5平方毫米或更大。 检测器具有三十个以上的检测器阵列元件。 激光光学系统反射和重新聚焦激光束以实现相同激光束通过感测区域的多次通过。