Method for robust wireless wind turbine condition monitoring
    1.
    发明授权
    Method for robust wireless wind turbine condition monitoring 有权
    强大的无线风力发电机状态监测方法

    公开(公告)号:US09249781B2

    公开(公告)日:2016-02-02

    申请号:US13341291

    申请日:2011-12-30

    IPC分类号: F03D7/04

    摘要: A wind turbine condition monitoring system and method are disclosed where the wind turbines include a tower, a gearbox coupled to the tower, and turbine blades coupled to the gearbox. The monitoring system includes blade sensors coupled to the blades, a hub node coupled to the gearbox and a controller. The controller is in communication with the hub node and blade sensors, and determines blade positions based on blade sensor readings. The blade sensors and hub node can include multi-axis accelerometers. The controller can wirelessly communicate with the blade sensors directly or through the hub node. Using position information, shadowing areas with obstructed communication can be avoided, node separation can be accounted for to reduce power requirements and/or interference from multiple transmitters can be avoided during node communications.

    摘要翻译: 公开了一种风力涡轮机状况监测系统和方法,其中风力涡轮机包括塔架,联接到塔架的齿轮箱和联接到齿轮箱的涡轮机叶片。 监测系统包括耦合到叶片的叶片传感器,耦合到齿轮箱的轮毂节点和控制器。 控制器与集线器节点和刀片传感器通信,并根据刀片传感器读数确定刀片位置。 叶片传感器和轮毂节点可以包括多轴加速度计。 控制器可以直接或通过集线器节点与刀片传感器无线通信。 使用位置信息,可以避免阻碍通信的阴影区域,可以考虑节点分离以减少功率需求,并且可以在节点通信期间避免多个发射机的干扰。

    Device and method for indirect modulation of detection environment
    2.
    发明授权
    Device and method for indirect modulation of detection environment 有权
    用于间接调制检测环境的装置和方法

    公开(公告)号:US09188585B2

    公开(公告)日:2015-11-17

    申请号:US12779687

    申请日:2010-05-13

    IPC分类号: G01N1/00 G01N33/543

    摘要: A system and method of indirectly modifying an environmental condition at a test site in one embodiment includes providing a test site on a substrate, providing a first activatable stimulant at the test site, providing an actuator configured to activate the first activatable stimulant at the test site, controlling the actuator to activate the first activatable stimulant, and modifying the local chemical environment at the test site with the first activated stimulant.

    摘要翻译: 在一个实施方案中间接改变测试部位环境条件的系统和方法包括在基底上提供测试部位,在测试部位提供第一可激活的刺激剂,提供构造成在测试部位激活第一可活化刺激物的致动器 控制致动器来激活第一可激活的兴奋剂,以及用第一个激活的兴奋剂改变测试部位的局部化学环境。

    Comparator with self-limiting positive feedback
    6.
    发明授权
    Comparator with self-limiting positive feedback 有权
    具有自限制正反馈的比较器

    公开(公告)号:US08476935B2

    公开(公告)日:2013-07-02

    申请号:US12497216

    申请日:2009-07-02

    IPC分类号: H03K5/22

    CPC分类号: H03F1/38 H03K5/08 H03K5/2481

    摘要: A method and circuit for attenuating positive feedback in a comparator in one embodiment includes an amplifier configured to compare a first input signal with a second input signal and to provide an output based upon the comparison, a non-linear function with a first input operably connected to an output of the amplifier, and a feedback loop operably connected to the output of the non-linear function and to a second input of the non-linear function, the feedback loop including a feedback limiting circuit configured to attenuate a feedback signal to the second input of the non-linear function.

    摘要翻译: 在一个实施例中用于衰减比较器中的正反馈的方法和电路包括:放大器,被配置为将第一输入信号与第二输入信号进行比较,并且基于比较提供输出,非线性函数与第一输入可操作地连接 耦合到放大器的输出端,以及可操作地连接到非线性功能的输出端和非线性功能的第二输入端的反馈回路,反馈回路包括反馈限制电路,该反馈限制电路被配置为将反馈信号衰减到 第二输入的非线性函数。

    DEVICE AND METHOD FOR SELF-REFERENCED CONFIDENCE TEST
    9.
    发明申请
    DEVICE AND METHOD FOR SELF-REFERENCED CONFIDENCE TEST 审中-公开
    自我信心测试的设备和方法

    公开(公告)号:US20120079897A1

    公开(公告)日:2012-04-05

    申请号:US12895361

    申请日:2010-09-30

    IPC分类号: G01N33/00

    CPC分类号: G01N33/48707

    摘要: A system and method of providing a confidence test in one embodiment includes determining a first quality metric based upon a first and a second test environment wherein the second test environment is different from the first test environment, exposing a sample to a plurality of test sites, establishing the first test environment at a first of the plurality of test sites, establishing the second test environment at a second test site, obtaining a first detection signal associated with the first of the plurality of test sites exposed to the sample and at the first test environment, obtaining a second detection signal associated with the second of the plurality of test sites exposed to the sample and at the second test environment, determining a second quality metric based upon the first detection signal and the second detection signal, and comparing the second quality metric with the first quality metric.

    摘要翻译: 在一个实施例中提供置信度测试的系统和方法包括基于第一和第二测试环境确定第一质量度量,其中第二测试环境与第一测试环境不同,将样本暴露于多个测试位置, 在所述多个测试点中的第一测试场所建立所述第一测试环境,在第二测试位置建立所述第二测试环境,获得与暴露于所述样品的所述多个测试点中的第一测试位点相关联的第一检测信号,以及在所述第一测试 获得与所述多个测试站点中的第二个暴露于所述样本并在所述第二测试环境相关联的第二检测信号,基于所述第一检测信号和所述第二检测信号确定第二质量度量,以及将所述第二质量 度量与第一个质量度量。

    SECOND ORDER DYNAMIC ELEMENT ROTATION SCHEME
    10.
    发明申请
    SECOND ORDER DYNAMIC ELEMENT ROTATION SCHEME 有权
    第二个动态元素旋转方案

    公开(公告)号:US20110260900A1

    公开(公告)日:2011-10-27

    申请号:US12767346

    申请日:2010-04-26

    IPC分类号: H03M1/12 H03M1/00

    摘要: A sensor system for generating sample analog signals for processing by a signal processing circuit that utilizes non-constant weights includes a plurality of signal generating elements and a switching network having a plurality of switches operably coupled to the plurality of signal generating elements. The switching network is configured to switch the plurality of signal generating elements between a plurality of different configurations. The system includes a dynamic element matching (DEM) control system for controlling the switch network to implement a second order DEM rotation scheme in which the plurality of signal generating elements are switched to each configuration in the plurality of configurations in a first sequence and then switched to each configuration in the plurality in a second sequence, the second sequence being the reverse of the first sequence.

    摘要翻译: 用于产生用于由利用非常数权重的信号处理电路处理的采样模拟信号的传感器系统包括多个信号产生元件和具有可操作地耦合到多个信号产生元件的多个开关的开关网络。 交换网络被配置为在多个不同配置之间切换多个信号产生元件。 该系统包括用于控制交换网络以实现二阶DEM旋转方案的动态元素匹配(DEM)控制系统,其中多个信号生成元件以第一序列切换到多个配置中的每个配置,然后切换 对于第二序列中的多个中的每个配置,第二序列与第一序列相反。