Systems and methods for testing and calibrating a focused ultrasound transducer array
    1.
    发明授权
    Systems and methods for testing and calibrating a focused ultrasound transducer array 有权
    用于测试和校准聚焦超声波换能器阵列的系统和方法

    公开(公告)号:US06543272B1

    公开(公告)日:2003-04-08

    申请号:US09557050

    申请日:2000-04-21

    申请人: Shuki Vitek

    发明人: Shuki Vitek

    IPC分类号: G01V1300

    摘要: Systems and methods for testing the performance of a focused ultrasound transducer array include transmitting ultrasonic energy from the transducer array towards an acoustic reflector, such as a planar air mirror, and receiving ultrasonic energy reflected off of the acoustic reflector using a sensing element. A characteristic of the reflected ultrasonic energy, such as amplitude and phase, is measured by processing circuitry, for example, by comparing the characteristic of the received ultrasonic energy to a corresponding characteristic of the transmitted ultrasonic energy to obtain an actual gain and phase shift for the received ultrasonic energy. A controller compares the actual gain and phase shift of the received ultrasonic energy to an expected gain and phase shift of the received ultrasonic energy. This information is used to calibrate the transducer array and/or to declare a system failure if the comparison indicates an error.

    摘要翻译: 用于测试聚焦超声换能器阵列的性能的系统和方法包括将超声能量从换能器阵列传送到诸如平面空气反射镜的声反射器,以及使用感测元件接收从声反射器反射的超声波能量。 通过处理电路测量反射的超声波能量(例如振幅和相位)的特性,例如通过将接收到的超声能量的特性与发射的超声能量的相应特性进行比较,以获得实际的增益和相移 接收超声能量。 控制器将接收到的超声能量的实际增益和相移与所接收的超声能量的预期增益和相移进行比较。 该信息用于校准换能器阵列和/或如果比较指示错误则声明系统故障。

    Method of strip insertion detection
    2.
    发明授权
    Method of strip insertion detection 失效
    条插入检测方法

    公开(公告)号:US06525330B2

    公开(公告)日:2003-02-25

    申请号:US09794037

    申请日:2001-02-28

    IPC分类号: G01V1300

    CPC分类号: G01N21/8483

    摘要: A method and apparatus for strip insertion detection in an analytical meter system. The invention allows for individual meter calibration, adaptive thresholding and ambient light correction. Increased performance is economically realized, while providing enhanced meter accuracy in varying light conditions.

    摘要翻译: 一种分析仪系统中条带插入检测的方法和装置。 本发明允许单独的仪表校准,自适应阈值和环境光校正。 提高性能经济实现,同时在不同的光线条件下提供增强的仪表精度。

    Angular velocity sensor
    3.
    发明授权
    Angular velocity sensor 有权
    角速度传感器

    公开(公告)号:US06244095B1

    公开(公告)日:2001-06-12

    申请号:US09332162

    申请日:1999-06-14

    IPC分类号: G01V1300

    摘要: The present invention aims to present an angular velocity sensor having a self diagnosis function. An angular velocity sensor of the present invention includes a driving part for stably vibrating a driving part of a sensor element having a driver part and a detector part for detecting an angular velocity and detection means for detecting the angular velocity of the sensor element and obtains a self diagnosis signal for a malfunction by detecting a mechanical coupling signal obtained at the detection means.

    摘要翻译: 本发明的目的在于提供一种具有自诊断功能的角速度传感器。 本发明的角速度传感器包括用于稳定地振动具有驱动器部分的传感器元件的驱动部分和用于检测角速度的检测器部分的驱动部分和用于检测传感器元件的角速度的检测装置,并且获得 通过检测在检测装置获得的机械耦合信号来发生故障的自诊断信号。