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    • 1. 发明授权
    • Soldering station with built-in self-calibration function
    • 焊台内置自校准功能
    • US06580050B1
    • 2003-06-17
    • US10046545
    • 2002-01-16
    • Thomas W. MillerCharles H. McDavidPaul Alan DunhamWilliam Jordan SiegelEric Stephen Siegel
    • Thomas W. MillerCharles H. McDavidPaul Alan DunhamWilliam Jordan SiegelEric Stephen Siegel
    • B23K304
    • B23K3/033
    • A soldering station with a control unit and a soldering iron having a replaceable soldering tip, the soldering iron being connected to the control unit by a power cord for receiving electrical power from said control unit is provided with an automatic calibration feature. The control unit has circuitry for controlling the temperature of the soldering iron at the tip by adjusting the supply of power to the tip heater of the soldering iron, a temperature selector for enabling selection of a temperature to which the soldering iron is to be heated by a user, a calibration temperature sensor connected to said circuitry and exposed for enabling it to be engaged by the tip of the soldering iron. The circuitry has a calibration mode and a heating mode, and in said calibration mode, the circuitry is compares a temperature sensed by the calibration temperature sensor and produced by contacting of the soldering iron which has been heated to a temperature selected with said temperature selector with the calibration temperature sensor, and adjusts the power supply to the tip heater so as to bring the temperature sensed by the calibration temperature sensor into conformance with the temperature selected with the temperature selector.
    • 具有控制单元和烙铁的焊台具有可替换的焊接头,所述烙铁通过用于从所述控制单元接收电力的电源线连接到控制单元,具有自动校准特征。 控制单元具有用于通过调节对烙铁的尖端加热器的功率的供给来控制尖端处的烙铁的温度的电路,用于能够选择烙铁被加热的温度的温度选择器 用户,校准温度传感器,连接到所述电路并被暴露以使其能够被烙铁的尖端接合。 电路具有校准模式和加热模式,并且在所述校准模式中,电路将由校准温度传感器感测的温度和通过将被加热的烙铁与所述温度选择器所选择的温度接触而产生的温度进行比较, 校准温度传感器,并调整到尖端加热器的电源,以使由校准温度传感器感测的温度与温度选择器选择的温度一致。
    • 2. 发明授权
    • Downhole pressure gauge converter
    • 井下压力表转换器
    • US5499533A
    • 1996-03-19
    • US935860
    • 1992-08-26
    • Mark MillerThomas W. Miller
    • Mark MillerThomas W. Miller
    • E21B47/06G01L9/00E21B21/08
    • E21B47/06G01L9/0027
    • The apparatus disclosed is a type of downhole pressure gauge to be used to measure and record pressure information about oil and gas wells. The apparatus measures fluctuations in pressure by means of a mechanical pressure sensitive device, such as a Bourdon tube, and records and stores this information by converting mechanical movement, associated with pressure changes as detected by the mechanical pressure sensitive device, into corresponding voltage changes across a potentiometer which are stored in an electronic memory board. The change in voltage over time corresponds to the change in well pressure over time, thereby providing important information to the well operator. Also disclosed is a method for measuring well pressure by means of combining a mechanical pressure sensitive device with an electrical system and an electronic memory board for storing the measurements. Also disclosed is a kit, whereby an existing downhole mechanical pressure gauge can be converted to a mechanical/electrical combination by the replacement of certain parts.
    • 所公开的装置是一种用于测量和记录关于油气井的压力信息的井下压力计。 该装置通过诸如布尔登管的机械压力敏感装置来测量压力波动,并且通过将与机械压敏装置检测到的压力变化相关联的机械运动转换成相应的电压变化来记录和存储该信息 存储在电子存储器板中的电位计。 电压随时间的变化对应于井压随时间的变化,从而为井操作者提供重要的信息。 还公开了一种通过组合机械压敏装置与电气系统和用于存储测量的电子存储器板来测量井压的方法。 还公开了一种套件,由此现有的井下机械压力计可以通过更换某些部件而转换为机械/电气组合。
    • 5. 发明授权
    • System and method for subband beamforming using adaptive weight normalization
    • 使用自适应权重归一化的子带波束成形的系统和方法
    • US06980614B2
    • 2005-12-27
    • US10047100
    • 2002-01-14
    • Thomas W. MillerChristopher W. Reed
    • Thomas W. MillerChristopher W. Reed
    • G01S1/00G01S7/36G01S19/21G01S19/36H01Q3/26H04B7/10H04L1/02
    • G01S19/21G01S7/36G01S19/36H01Q3/2605
    • A beamforming system and method. The inventive beamforming system is adapted for use with an array antenna having a plurality of antenna elements and includes a Fast Fourier Transform (EFT) for transforming a signal received by an antenna into a plurality of frequency subbands. A plurality of adaptive processors are included for performing adaptive array processing on each of the subbands and providing a plurality of adaptively processed subbands in response thereto. A normalizing processor is also included for normalizing the adaptively processed subbands. In the illustrative embodiment, the signal is a Global Positioning System (GPS) signal and a digital multiplier for applying a weight to a respective frequency subband for each of the elements of the array. The weights are chosen to steer a beam in a direction of a desired signal. Normalization involves adjusting the amplitude of one or more of the subbands to remove any bias distortion due to the adaptive processing thereof.
    • 波束成形系统和方法。 本发明的波束形成系统适用于具有多个天线元件的阵列天线,并且包括用于将由天线接收的信号变换为多个频率子带的快速傅里叶变换(EFT)。 包括多个自适应处理器,用于对每个子带执行自适应阵列处理,并响应于此提供多个自适应处理的子带。 还包括归一化处理器用于对自适应处理的子带进行归一化。 在说明性实施例中,信号是全球定位系统(GPS)信号和数字乘法器,用于向阵列的每个元件的相应频率子带应用权重。 选择权重以在所需信号的方向上引导光束。 归一化涉及调整一个或多个子带的振幅以消除由于其自适应处理而引起的任何偏置失真。
    • 7. 发明授权
    • Adaptive weight calculation preprocessor
    • 自适应权重计算预处理器
    • US06618007B1
    • 2003-09-09
    • US10162486
    • 2002-06-04
    • Thomas W. Miller
    • Thomas W. Miller
    • H01Q326
    • H01Q3/2605
    • In accordance with one aspect of the present invention, a preprocessor is provided for use in an adaptive antenna array. The purpose of the preprocessor is to modify the incoming signals received by each antenna of an antenna array in such a manner as to reduce the amount of computation necessary to compute the adaptive array weights. In an adaptive array, the weight computation process generally requires calculations using digital electronics, which tend to be computationally intensive when applied to wideband, high sample rate signals. The preprocessor of the present invention solves this problem by filtering the data in such a manner as to reduce the sample rate of the signal without losing the essential characteristics of the signal. The preprocessor includes an input terminal for receiving an electromagnetic signal from an antenna element of the adaptive antenna array, and a frequency smearer operatively coupled to the input terminal. The frequency smearer is provided in order to smear the electromagnetic signal by varying the frequency of the electromagnetic signal across a predetermined frequency band and outputting the smeared electromagnetic signal to an averaging circuit. The averaging circuit, which is operatively coupled to the output of the frequency smearer, repetitively computes and outputs an average with respect to time of the smeared electromagnetic signal.
    • 根据本发明的一个方面,提供一种用于自适应天线阵列中的预处理器。 预处理器的目的是以这样的方式修改由天线阵列的每个天线接收的输入信号,以减少计算自适应阵列权重所需的计算量。 在自适应阵列中,权重计算过程通常需要使用数字电子学进行计算,当应用于宽带,高采样率信号时,该方法倾向于计算密集。 本发明的预处理器通过以减少信号的采样率而不失去信号的基本特性的方式对数据进行滤波来解决这个问题。 预处理器包括用于从自适应天线阵列的天线元件接收电磁信号的输入端子和可操作地耦合到输入端子的频率smearer。 为了通过在预定的频带上改变电磁信号的频率并且将模糊的电磁信号输出到平均电路来提供频率调查器以便对电磁信号进行拖尾。 可操作地耦合到频率smearer的输出的平均电路重复地计算并输出相对于模糊电磁信号的时间的平均值。
    • 8. 发明授权
    • Antenna-rotation compensation apparatus and method for phased array
antennas
    • 天线旋转补偿装置及相控阵天线方法
    • US5036333A
    • 1991-07-30
    • US541683
    • 1990-06-21
    • C. Weldon ChapmanThomas W. Miller
    • C. Weldon ChapmanThomas W. Miller
    • G01S3/10H01Q3/04H01Q3/26
    • H01Q3/04G01S3/10H01Q3/26
    • Electronic antenna-rotation compensation apparatus is provided for correcting data errors introduced into radar return signals by the rotation of phased array antennas. The apparatus includes circuitry for sampling and A-to-D converting I (in phase) and Q (quadrature) radar return signal components provided by individual antenna elements comprising the array antenna and for providing and applying correction factors to each ith signal components sample from each nth element across the antenna. The correction factors may be precomputed and stored in a memory for use when required or may be computed as needed. The corrected, digital I and Q signal component samples are supplied to a conventional processor, for example, as adaptive array processor, for extracting useful target data from return signal interference and clutter. A corresponding method is provided for compensating for the effects of phased array antenna rotation.
    • 提供电子天线旋转补偿装置,用于通过相控阵天线的旋转来校正引入雷达返回信号的数据误差。 该装置包括用于采样的A-D转换和由包括阵列天线的各个天线元件提供的I(同相)和Q(正交)雷达返回信号分量的电路,并用于向每个第i个信号分量采样提供校正因子 每个天线上的第n个元素。 校正因子可以预先计算并存储在存储器中以供需要时使用,或者可以根据需要进行计算。 校正的数字I和Q信号分量采样被提供给常规处理器,例如作为自适应阵列处理器,用于从返回信号干扰和杂波中提取有用的目标数据。 提供了相应的方法来补偿相控阵天线旋转的影响。