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    • 5. 发明授权
    • Instrument and method for measurement of stability of oils
    • 测量油稳定性的仪器和方法
    • US6127185A
    • 2000-10-03
    • US305902
    • 1999-05-05
    • Sharon L. MeltonHung-Wei Lin
    • Sharon L. MeltonHung-Wei Lin
    • G01N27/06G01N33/03G01N33/28G01N33/06G01N27/00G01N33/26
    • G01N33/03G01N27/06
    • The present invention relates to an instrument and methods for determining stability of oils and fats. The instrument includes a sample reaction vessel for containing a sample of an oil or fat, a moisturized gas source operably connected to the vessel for contacting a moisturized gas with the sample, a compound trap containing water operably connected to the vessel to contact the moisturized gas from the vessel with the water, and an automatic data acquisition and control system for monitoring the electrical conductivity of the water. The method is carried out by heating an oil or a fat, contacting the oil or fat with a moisturized gas, contacting the moisturized gas with water to form a trap solution, measuring the electrical conductivity of the trap solution, and determining the stability of the oil or fat.
    • 本发明涉及用于测定油和脂肪的稳定性的仪器和方法。 该仪器包括用于容纳油或脂肪的样品的样品反应容器,可操作地连接到容器的用于使保湿气体与样品接触的保湿气体源,包含可操作地连接到容器以接触保湿气体的水的化合物阱 来自船舶的水,以及用于监测水的导电性的自动数据采集和控制系统。 该方法通过加热油或脂肪,使油或脂肪与保湿气体接触,使保湿气体与水接触以形成捕获溶液,测量捕获溶液的电导率,并确定 油或脂肪。
    • 7. 发明申请
    • Power conversion system and method thereof using pulse width modulation
    • 电力转换系统及其使用脉宽调制方法
    • US20090189443A1
    • 2009-07-30
    • US12155857
    • 2008-06-11
    • Hung-Wei Lin
    • Hung-Wei Lin
    • H02J1/00
    • H02M1/08H02M2001/0012H02M2001/008H02M2003/1586Y10T307/258
    • A power conversion system comprises an input unit, a control unit, a plurality of pulse width modulation (PWM) units and a plurality of conversion units. The input unit is for generating an input voltage-current, and the PWM units are connected with the input unit respectively for receiving the input voltage-current and output the PWM signals corresponding to the input voltage-current respectively. The control units are connected with the PWM units respectively for counting the number of PWM units and determining the order of the PWM units. The PWM units determine the phases of the PWM signals based on the number and order of the PWM units. The conversion units connected with the corresponding PWM units respectively are for generating a plurality of working voltage-currents corresponding to the PWM signals.
    • 电力转换系统包括输入单元,控制单元,多个脉宽调制(PWM)单元和多个转换单元。 输入单元用于产生输入电压电流,PWM单元分别与输入单元连接,用于接收输入电压电流,并分别输出与输入电压电流对应的PWM信号。 控制单元分别与PWM单元连接,用于对PWM单元的数量进行计数并确定PWM单元的顺序。 PWM单元基于PWM单元的数量和顺序确定PWM信号的相位。 与相应的PWM单元分别连接的转换单元用于产生对应于PWM信号的多个工作电压电流。