Dual microwave cavity accelerometer
    3.
    发明授权
    Dual microwave cavity accelerometer 有权
    双微波腔加速度计

    公开(公告)号:US06928875B2

    公开(公告)日:2005-08-16

    申请号:US10341666

    申请日:2003-01-14

    IPC分类号: G01P15/08

    CPC分类号: G01P15/08

    摘要: A system and method for compensating for gradients in a dual cavity device such as but not limited to an accelerometer. A first source drives a first cavity at least two different modes, at least one mode varying with changes in cavity length. A second source drives a second cavity at least two different modes, at least one mode varying with changes in cavity length. A processor determines changes in cavity length as a function of both modes in both cavities to compensate for non-uniform behavior between the cavities.

    摘要翻译: 一种用于补偿双腔装置中的梯度的系统和方法,例如但不限于加速度计。 第一源驱动第一腔至少两种不同的模式,至少一种模式随腔长度的变化而变化。 第二源驱动第二腔至少两种不同的模式,至少一种模式随腔长度的变化而变化。 处理器确定腔长度的变化作为两个腔中的两种模式的函数,以补偿腔之间的不均匀行为。

    In-line loss-on-ignition measurement system and method
    5.
    发明申请
    In-line loss-on-ignition measurement system and method 有权
    在线点火点火测量系统及方法

    公开(公告)号:US20110066286A1

    公开(公告)日:2011-03-17

    申请号:US12927364

    申请日:2010-11-12

    IPC分类号: F23N5/26 G06F19/00

    摘要: An in-line loss-on-ignition measurement system includes an on-site extractor subsystem configured to collect fuel or a combustion by-product from a hydrocarbon fuel burning plant. An on-site analyzer is configured to receive the collected matter from the extractor subsystem and configured to weigh the collected matter, burn the collected matter, and weight the collected matter again. A controller is responsive to the analyzer and is configured to determine the loss-on-ignition data for the plant based on the weight of the collected matter before and after it is burned in the analyzer.

    摘要翻译: 在线点火点火测量系统包括现场提取器子系统,其被配置为从烃燃料燃烧设备收集燃料或燃烧副产物。 现场分析器被配置为从提取器子系统接收收集的物质,并且被配置为对所收集的物质进行称重,燃烧所收集的物质,并重新收集所收集的物质。 控制器响应于分析仪,并且被配置为基于在分析仪中燃烧之前和之后收集的物质的重量来确定工厂的点火点数据。

    Low-power signal processing using MEMS
    9.
    发明授权
    Low-power signal processing using MEMS 有权
    使用MEMS的低功耗信号处理

    公开(公告)号:US07231094B2

    公开(公告)日:2007-06-12

    申请号:US10262635

    申请日:2002-10-01

    IPC分类号: G06K9/36

    摘要: Apparatus and methods for performing a Fourier transform mechanically, using an array of one or more resonators. By tuning the resonators so that their natural frequencies correspond to harmonics of an input signal, the vibration of the resonators in response to the input signal may be measured to provide phase and amplitude information that is equivalent to the Fourier coefficients of the input signal. Preferably, the resonators are microelectromechanical (MEMS) resonators. Using MEMS resonators, the Fourier transform of a signal can be determined using substantially less power than would be consumed by a digital signal processor (DSP) or microprocessor performing similar calculations. MEMS resonator-based apparatus and methods according to various embodiments may be used for applications including compression and image processing.

    摘要翻译: 使用一个或多个谐振器的阵列机械地执行傅立叶变换的装置和方法。 通过调谐谐振器使得其固有频率对应于输入信号的谐波,可以测量响应于输入信号的谐振器的振动,以提供相当于输入信号的傅里叶系数的相位和幅度信息。 优选地,谐振器是微机电(MEMS)谐振器。 使用MEMS谐振器,可以使用比数字信号处理器(DSP)或执行类似计算的微处理器消耗的功率更少的功率来确定信号的傅里叶变换。 根据各种实施例的基于MEMS谐振器的装置和方法可以用于包括压缩和图像处理的应用。