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    • 3. 发明申请
    • FOLDED LIQUID-CRYSTAL VARIABLE OPTICAL ATTENUATOR
    • 折叠液晶可变光学衰减器
    • WO0244800A3
    • 2003-02-13
    • PCT/US0151142
    • 2001-11-02
    • CAMBRIDGE RES & INSTRMNT INCHOYT CLIFFORD CMILLER PETER J
    • HOYT CLIFFORD CMILLER PETER J
    • G02F1/133G02F1/1333G02F1/1335
    • G02F1/1326G02F1/13318G02F2201/17G02F2203/06G02F2203/48
    • A variable optical attenuator including: a birefringent element positioned to separate an input optical signal into two spatially separated, orthogonally polarized beams; a liquid crystal (LC) modulator positioned to receive the orthogonally polarized beams and selectively alter their polarizations; a reflective element positioned to reflect the beams back through the LC modulator and the birefringent element, wherein the birefringent element recombines orthogonally polarized components of the reflected beams to produce an output optical signal; and a controller coupled to the LC modulator to selectively cause the LC modulator to alter the polarizations of the orthogonally polarized beams, wherein during operation the controller is responsive to a request to variably attenuate the intensity of the output optical signal relative to the intensity of the input optical signal to one of multiple non-zero attenuation settings.
    • 一种可变光衰减器,包括:双折射元件,定位成将输入光信号分离成两个空间分离的正交偏振光束; 定位为接收正交偏振光束并选择性地改变其偏振的液晶(LC)调制器; 反射元件,定位成将光束反射通过LC调制器和双折射元件,其中双折射元件将反射光束的正交极化分量重新组合以产生输出光信号; 以及控制器,其耦合到所述LC调制器以选择性地使所述LC调制器改变所述正交偏振光束的极化,其中在操作期间,所述控制器响应于相对于所述LC调制器的强度可变地衰减所述输出光信号的强度的请求 输入光信号到多个非零衰减设置之一。
    • 4. 发明申请
    • ENERGY MANAGEMENT AND STORAGE SYSTEM
    • 能源管理与储存系统
    • WO2012047546A3
    • 2012-06-14
    • PCT/US2011052950
    • 2011-09-23
    • CATERPILLAR GLOBAL MINING LLCONSAGER MICHAEL GHELFRICH JOSEPHPERUGINI DAVE LCHMIEL WAYNE GWEBER ROBERTMILLER PETER J
    • ONSAGER MICHAEL GHELFRICH JOSEPHPERUGINI DAVE LCHMIEL WAYNE GWEBER ROBERTMILLER PETER J
    • E02F9/20E02F3/42
    • B60L11/08B60L2200/40Y02T10/70Y02T10/7077Y02T90/16
    • Heavy equipment is designed for operation in a substantially-repetitive work cycle that includes lifting, rotating, and lowering steps. The heavy equipment includes a generator, an electrical bus, an energy storage component, and working components. The generator provides a substantially constant electrical output to the electrical bus, which is communicated to the working components. As such, the working components of the heavy equipment are driven directly or indirectly by the electrical output of the generator. The controller selectively couples the energy storage component to the electrical bus, and the energy storage component is configured to store electricity provided by the generator, and to provide electricity to the working components by way of the electrical bus. The electrical output of the generator is less than the power used by the heavy equipment during a portion of the work cycle, and the controller couples the energy storage component to the electrical bus to supplement the electrical output of the generator during the portion of the work cycle in which the electrical output of the generator is less than the power used by the working components of the heavy equipment.
    • 重型设备设计用于在基本上重复的工作循环中进行操作,包括提升,旋转和降低步骤。 重型设备包括发电机,电气总线,能量存储部件和工作部件。 发电机向电气总线提供基本上恒定的电输出,其被传送到工作部件。 因此,重型设备的工作部件由发电机的电气输出直接或间接驱动。 控制器选择性地将能量存储部件耦合到电气总线,并且能量存储部件被配置为存储由发电机提供的电力,并且通过电气总线向工作部件提供电力。 发电机的电气输出小于重型设备在工作周期的一部分使用的功率,并且控制器将能量存储部件耦合到电气总线,以在工作的一部分期间补充发电机的电气输出 发电机的电气输出小于重型设备的工作部件使用的功率的循环。