MILLIMETER WAVE SENSOR FOR FAR-FIELD STANDOFF VIBROMETRY
    6.
    发明申请
    MILLIMETER WAVE SENSOR FOR FAR-FIELD STANDOFF VIBROMETRY 有权
    用于野外立体声振动的MILLIMETER波形传感器

    公开(公告)号:US20100290063A1

    公开(公告)日:2010-11-18

    申请号:US12770438

    申请日:2010-04-29

    IPC分类号: G01B11/14

    摘要: A millimeter wavelength (MMW) measurement system for remote detection of object characteristics and methods for detecting such characteristics. The MMW measurement system comprises a front-end and an optional signal conditioning component. The MMW front-end includes an oscillator, a transceiver portion, and an antenna for focusing a detection component comprising micrometer level wavelength electromagnetic radiation onto the object. A portion of the electromagnetic radiation reflected by the object is received by the MMW measurement system, which is indicative of a displacement of the object. The MMW system may be configured to detect micrometer level displacement of the object disposed tens of meters from the MMW measurement system. In various embodiments the object may be a natural object, including a human, and the displacement may be indicative of a heart rate and/or a respiratory function.

    摘要翻译: 用于远程检测物体特性的毫米波长(MMW)测量系统和用于检测这些特性的方法。 MMW测量系统包括前端和可选的信号调理部件。 MMW前端包括振荡器,收发器部分和用于将包括微米级波长电磁辐射的检测部件聚焦到对象上的天线。 由物体反射的电磁辐射的一部分由MMW测量系统接收,这表示物体的位移。 MMW系统可以被配置为检测距离MMW测量系统几十米的物体的千分尺位移。 在各种实施例中,物体可以是天然物体,包括人,并且位移可以指示心率和/或呼吸功能。

    Ion-mobility spectrometry sensor for NOx detection
    7.
    发明授权
    Ion-mobility spectrometry sensor for NOx detection 失效
    用于NOx检测的离子迁移光谱传感器

    公开(公告)号:US06969851B1

    公开(公告)日:2005-11-29

    申请号:US10920539

    申请日:2004-08-18

    摘要: A sensor and detection methods are provided for detecting nitric oxides (NOx) in an exhaust gas based upon ion mobility spectrometry (IMS) technique. An ionization chamber having an interior electrically conductive shell receives exhaust gas. A spark electrode having a needle tip extends into the ionization chamber. A shutter grid is coupled between the ionization chamber and an ion drift tube. A substantially continuous spark discharge is established between the electrically conductive shell and the needle tip of the spark electrode for ionization of the exhaust gas. Negative NO2 ions are kept inside the chamber by biasing the electrically conductive shell and the shutter grid at a negative voltage. Then a positive pulse is applied to the shutter grid to cause the shutter to open for negative NO2 ions to exit into the ion drift tube. The IMS sensor is small-sized, low-cost, robust, and reliable.

    摘要翻译: 提供了一种基于离子淌度光谱法(IMS)技术检测废气中的一氧化氮(NOx)的传感器和检测方法。 具有内部导电壳体的电离室容纳废气。 具有针尖的火花电极延伸到电离室中。 快门栅格耦合在电离室和离子漂移管之间。 在导电外壳和用于离子化废气的火花电极的针尖之间建立了基本连续的火花放电。 通过以负电压偏置导电外壳和快门栅格,将负的NO 2 2离子保持在室内。 然后将正脉冲施加到快门栅格,以使快门打开以进行负的NO 2 2离子以离开离子漂移管。 IMS传感器尺寸小,成本低,稳健可靠。

    Cavitation controlled acoustic probe for fabric spot cleaning and
moisture monitoring
    8.
    发明授权
    Cavitation controlled acoustic probe for fabric spot cleaning and moisture monitoring 失效
    气蚀控制声探头,用于织物点清洗和水分监测

    公开(公告)号:US5676015A

    公开(公告)日:1997-10-14

    申请号:US301194

    申请日:1994-09-06

    IPC分类号: B06B1/02 G01N29/11 G01N5/02

    摘要: A method and apparatus are provided for monitoring a fabric. An acoustic probe generates acoustic waves relative to the fabric. An acoustic sensor, such as an accelerometer is coupled to the acoustic probe for generating a signal representative of cavitation activity in the fabric. The generated cavitation activity representative signal is processed to indicate moisture content of the fabric. A feature of the invention is a feedback control signal is generated responsive to the generated cavitation activity representative signal. The feedback control signal can be used to control the energy level of the generated acoustic waves and to control the application of a cleaning solution to the fabric.

    摘要翻译: 提供了一种用于监测织物的方法和装置。 声学探针产生相对于织物的声波。 诸如加速度计的声学传感器耦合到声学探针,用于产生表示织物中气蚀活性的信号。 产生的气蚀活性代表信号被处理以指示织物的水分含量。 本发明的一个特征是响应于产生的气穴活动代表信号产生反馈控制信号。 反馈控制信号可用于控制产生的声波的能量水平并且控制清洁溶液在织物上的应用。

    Method and apparatus for sizing and separating warp yarns using
acoustical energy
    10.
    发明授权
    Method and apparatus for sizing and separating warp yarns using acoustical energy 失效
    使用声能调整和分离经纱的方法和装置

    公开(公告)号:US5752302A

    公开(公告)日:1998-05-19

    申请号:US838955

    申请日:1997-04-23

    IPC分类号: D06B13/00 D06B23/06 D02H5/02

    CPC分类号: D06B13/00 D06B23/06

    摘要: A slashing process for preparing warp yarns for weaving operations including the steps of sizing and/or desizing the yarns in an acoustic resonance box and separating the yarns with a leasing apparatus comprised of a set of acoustically agitated lease rods. The sizing step includes immersing the yarns in a size solution contained in an acoustic resonance box. Acoustic transducers are positioned against the exterior of the box for generating an acoustic pressure field within the size solution. Ultrasonic waves that result from the acoustic pressure field continuously agitate the size solution to effect greater mixing and more uniform application and penetration of the size onto the yarns. The sized yarns are then separated by passing the warp yarns over and under lease rods. Electroacoustic transducers generate acoustic waves along the longitudinal axis of the lease rods, creating a shearing motion on the surface of the rods for splitting the yarns.

    摘要翻译: 一种制备用于编织操作的经纱的切割方法,包括在声共振箱中对纱线进行上浆和/或退浆的步骤,并将纱线与由一组声学搅拌的租赁杆组成的租赁设备分离。 定型步骤包括将纱线浸入包含在声共振盒中的尺寸溶液中。 声学换能器抵靠箱体的外部定位,以在尺寸解决方案内产生声压场。 由声压场引起的超声波连续地搅动尺寸溶液,以实现更大的混合和更均匀的施加和将尺寸穿透到纱线上。 然后通过将经纱通过经过的杆和通过经过的杆来分离尺寸的纱线。 电声换能器沿着租赁杆的纵向轴线产生声波,在杆的表面上产生剪切运动以分裂纱线。