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    • 16. 发明授权
    • Two-dimensional locating method of motion platform based on magnetic steel array
    • 基于磁钢阵列的运动平台二维定位方法
    • US09455650B2
    • 2016-09-27
    • US13522788
    • 2011-01-18
    • Jinchun HuYu ZhuJinsong WangMing ZhangKai LiaoKaiming YangDengfeng XuWensheng YinGuanghong Duan
    • Jinchun HuYu ZhuJinsong WangMing ZhangKai LiaoKaiming YangDengfeng XuWensheng YinGuanghong Duan
    • G06F17/11H02N15/00G01D5/14
    • H02N15/00G01D5/145
    • A two-dimensional locating method of a motion platform based on a magnetic steel array involves the following steps: placing more than four linear Hall sensors at any different positions within one or more polar distances of the magnetic steel array on the surface of the motion platform in a motion system; determining a magnetic flux density distribution model according to the magnetic steel array; determining the mounting positions of the above-mentioned linear Hall sensors, which are converted into phases with respect to the mass center of the motion platform; recording the magnetic flux density measured values of the linear Hall sensors as the motion proceeds; solving the phases of the mass center of the motion platform in a plane, with the measured values being served as observed quantities and the magnetic flux density distribution model being served as a computation model; and determining the position of the mass center of the motion platform with respect to an initial phase according to the phase, so as to realize the planar location of the motion platform. The present invention provides a simple, fast and robust method for computing mass center positions for a motion system containing a magnetic steel array.
    • 基于磁钢阵列的运动平台的二维定位方法包括以下步骤:将多于四个线性霍尔传感器放置在运动平台表面上的磁钢阵列的一个或多个极距离内的任何不同位置 在运动系统中 根据磁钢阵列确定磁通密度分布模型; 确定上述线性霍尔传感器的安装位置,其相对于运动平台的质心转换成相位; 在运动过程中记录线性霍尔传感器的磁通密度测量值; 解决平面中运动平台质心的相位,测量值作为观测量,磁通密度分布模型用作计算模型; 并根据相位确定运动平台的质量中心相对于初始相位的位置,以便实现运动平台的平面位置。 本发明提供了一种用于计算包含磁钢阵列的运动系统的质心位置的简单,快速和鲁棒的方法。
    • 19. 发明授权
    • White LED device having LED chips directly driven by alternating current
    • 白色LED器件,具有直接由交流电驱动的LED芯片
    • US09185761B2
    • 2015-11-10
    • US13883832
    • 2011-03-01
    • Hongjie ZhangMing ZhangChengyu LiKun ZhaoDongming LiLi Zhang
    • Hongjie ZhangMing ZhangChengyu LiKun ZhaoDongming LiLi Zhang
    • H01J1/62H01L33/00H05B33/08H01L33/50
    • H05B33/0845H01L27/15H01L33/502H05B33/0809H05B33/0821
    • An Alternate Current (AC) white Light-Emitting Diode (LED) device is provided, which belongs to the technical field of white LED manufacturing. The problem to be solved by the present invention is to low-costly overcome a series of deficiencies such as the stroboflash of an AC driven LED, and the heat dissipation difficulty caused by an integrated packaging of multiple LEDs. A white LED unit includes an LED chip and a light emitting material that can emit light when being excited by the LED chip. The luminous lifetime of the light emitting material is 1-100 ms. The LED chip only comprises one PN junction. The light emitted by the LED chip is mixed with the light emitted by the light emitting material to form white light. The white LED unit is driven by AC with a frequency not more than 100 Hz. The white LED device of prevent invention uses the single PN junction chip, rather than the prior integrated packaged AC multi-LED chip.
    • 提供交流(AC)白光发光二极管(LED)装置,属于白光LED制造技术领域。 本发明要解决的问题是低成本地克服了诸如AC驱动LED的闪光灯等一系列缺陷以及由多个LED的集成封装引起的散热困难。 白色LED单元包括LED芯片和当被LED芯片激发时可以发光的发光材料。 发光材料的发光寿命为1-100ms。 LED芯片仅包括一个PN结。 由LED芯片发出的光与由发光材料发射的光混合,形成白光。 白色LED单元由AC不超过100 Hz的频率驱动。 防止发明的白色LED装置使用单个PN结芯片,而不是现有的集成封装的交流多LED芯片。
    • 20. 发明授权
    • Voltage-temperature sensor and system including the same
    • 电压 - 温度传感器和系统包括相同的
    • US09110104B2
    • 2015-08-18
    • US13482033
    • 2012-05-29
    • Kun-Young ChungDong JiaoMing Zhang
    • Kun-Young ChungDong JiaoMing Zhang
    • G01K7/00G01K3/00G01R19/00G01K7/32G01R31/28
    • G01R19/0084G01K7/32G01R31/2853
    • A voltage-temperature sensor includes a first converter, a second converter and a data processing block. The first converter generates first digital data based on an operational voltage and an operational temperature. The first converter has a first sensitivity to the operational voltage and the operational temperature. The second converter generates second digital data based on the operational voltage and the operational temperature. The second converter has a second sensitivity to the operational voltage and the operational temperature. The second sensitivity is different from the first sensitivity. The data processing block determines a combination of an unknown value of the operational voltage and an unknown value of the operational temperature based on a combination of the first digital data and the second digital data.
    • 电压 - 温度传感器包括第一转换器,第二转换器和数据处理块。 第一转换器基于操作电压和操作温度产生第一数字数据。 第一转换器对工作电压和工作温度具有第一灵敏度。 第二转换器基于工作电压和工作温度产生第二数字数据。 第二转换器对操作电压和操作温度具有第二灵敏度。 第二灵敏度与第一灵敏度不同。 数据处理块基于第一数字数据和第二数字数据的组合来确定操作电压的未知值和操作温度的未知值的组合。