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    Shaker systems with class D power amplifiers and methods
    33.
    发明授权
    Shaker systems with class D power amplifiers and methods 有权

    公开(公告)号：US09772254B1

    公开(公告)日：2017-09-26

    申请号：US14668827

    申请日：2015-03-25

    Applicant: Gary C. Butts

    Inventor： Gary C. Butts

    IPC: G01M7/00 ,  G01N29/00 ,  G01M7/02

    CPC classification number: G01M7/022

    Abstract: A shaker test system with a class D power amplifier having an analog to digital converter to receive an analog input signal and convert the analog input signal to a digital signal, pulse width modulation logic coupled to the analog to digital converter to provide a delay time to a delay line to control a transition time of a pulse width modulated signal responsive to an output of the analog to digital converter, and a class D power output stage coupled to the delay line and responsive to the pulse width modulated signal to provide an output of the class D power amplifier stage. The class D amplifier allows use of a low cost microcontroller to obtain very small pulse width increments using a low cost microcontroller to provide a low cost shaker test system incorporating the class D power amplifier.

    Method of ultrasonic inspection of as-cast titanium alloy articles
    35.
    发明授权
    Method of ultrasonic inspection of as-cast titanium alloy articles 有权

    公开(公告)号：US09651524B2

    公开(公告)日：2017-05-16

    申请号：US14279451

    申请日：2014-05-16

    Applicant: RTI International Metals, Inc.

    Inventor： Sesh Tamirisakandala

    IPC: G01N29/00 ,  G01N29/04

    CPC classification number: G01N29/043 ,  Y10T29/49336 ,  Y10T29/49774

    Abstract: A method is provided of non-destructively inspecting titanium alloy articles in the as-cast condition using ultrasonic waves to detect internal flaws, comprising modification of grain structure in the as-solidified ingot structure by the addition of trace boron to various titanium alloys. The ability to ultrasonically inspect as-cast billets combined with improved hot workability provided by trace boron enhancement permits an economical method of manufacture of titanium alloy articles destined for high performance applications.

    Methods and apparatus for high-resolution continuous scan imaging using vold-kalman filtering
    36.
    发明授权
    Methods and apparatus for high-resolution continuous scan imaging using vold-kalman filtering 有权
    使用vold-kalman滤波的高分辨率连续扫描成像的方法和装置

    公开(公告)号：US09482644B2

    公开(公告)日：2016-11-01

    申请号：US14470797

    申请日：2014-08-27

    Applicant: ATA Engineering, Inc.

    Inventor： Havard I. Vold ,  Parthiv N. Shah

    IPC: G01N29/00 ,  G01N29/06 ,  G03H3/00 ,  G03H1/04

    CPC classification number: G01N29/0663 ,  G03H1/0443 ,  G03H3/00

    Abstract: A method of imaging a test subject includes providing one or more moveable sensors to sense an attribute of the test subject (e.g., acoustic pressure), wherein the attribute has a tonal noise component and a broadband noise component. A rotational sensor is provided to sense a rotational velocity of a rotational element of the test subject. Each of the moveable sensors are moved along a path while continuously acquiring test data that is indicative of the rotational velocity of the rotational element, the sensed attribute, the position, and the orientation of each of the moveable sensors. A set of transfer functions corresponding to points in space that have been visited by the moveable sensors are constructed, each of the transfer functions relating the test data of the moveable sensors to the test data of the rotational sensor. A visual representation of the tonal noise component of the attribute in a region adjacent the test subject is produced using the set of transfer functions.

    Abstract translation: 成像测试对象的方法包括提供一个或多个可移动传感器以感测测试对象的属性（例如，声压），其中该属性具有音调噪声分量和宽带噪声分量。 提供旋转传感器以感测测试对象的旋转元件的旋转速度。 每个可移动传感器沿着路径移动，同时连续地获取指示旋转元件的旋转速度，感测的属性，位置以及每个可移动传感器的取向的测试数据。 构成与可移动传感器访问的对应于空间中的点的一组传递函数，每个传递函数将可移动传感器的测试数据与旋转传感器的测试数据相关联。 使用一组传递函数产生与测试对象相邻的区域中的属性的音调噪声分量的视觉表示。

    Device for monitoring the integrity and soundness of a mechanical structure, and method for operating such a device
    37.
    发明授权
    Device for monitoring the integrity and soundness of a mechanical structure, and method for operating such a device 有权
    用于监测机械结构的完整性和健全性的装置以及用于操作这种装置的方法

    公开(公告)号：US09418039B2

    公开(公告)日：2016-08-16

    申请号：US13982426

    申请日：2012-01-31

    Applicant: Bruno Foucher ,  Vincent Rouet ,  Remy Reynet

    Inventor： Bruno Foucher ,  Vincent Rouet ,  Remy Reynet

    IPC: G08B21/00 ,  G08G1/123 ,  G08C19/38 ,  G08C19/12 ,  G01N19/10 ,  G01P15/00 ,  G01N29/00 ,  G01L7/00 ,  G06F15/02 ,  G01M5/00 ,  G07C5/00 ,  G07C5/08 ,  G01N37/00

    CPC classification number: G06F15/0275 ,  G01M5/00 ,  G01N37/00 ,  G07C5/008 ,  G07C5/085

    Abstract: The invention relates to a device for monitoring the integrity and soundness of a mechanical structure, such as an aircraft. The device comprises a control unit, a radio frequency transmission means, and an electric battery. The control unit recovers data from a set of digital and/or analog sensors. The radio frequency transmission means enables the control unit to transmit the data received from the sensors to a man/machine interface. The electric battery powers the device and is rechargeable. The device further comprises a module for recovering electromagnetic energy capable of converting the recovered electromagnetic energy into electric power so as to recharge the battery and/or directly power the device.

    Abstract translation: 本发明涉及一种用于监测诸如飞行器的机械结构的完整性和健全性的装置。 该装置包括控制单元，射频传输装置和电池。 控制单元从一组数字和/或模拟传感器恢复数据。 射频发送装置使得控制单元能够将从传感器接收到的数据发送到人机界面。 电池为设备供电并可充电。 该装置还包括用于恢复能够将恢复的电磁能转换成电力以便对电池再充电和/或直接为该装置供电的电磁能的模块。

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