Abstract:
A system and method for determining stator winding resistance in an AC motor is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor. The circuit includes at least one contactor and at least one switch to control current flow and terminal voltages in the AC motor. The system also includes a controller connected to the circuit and configured to modify a switching time of the at least one switch to create a DC component in an output of the system corresponding to an input to the AC motor and determine a stator winding resistance of the AC motor based on the injected DC component of the voltage and current.
Abstract:
A system and method for a motor management system includes a computer readable storage medium and a processing unit. The processing unit configured to determine a voltage value of a voltage input to an alternating current (AC) motor, determine a frequency value of at least one of a voltage input and a current input to the AC motor, determine a load value from the AC motor, and access a set of motor nameplate data, where the set of motor nameplate data includes a rated power, a rated speed, a rated frequency, and a rated voltage of the AC motor. The processing unit is also configured to estimate a motor speed based on the voltage value, the frequency value, the load value, and the set of nameplate data and also store the motor speed on the computer readable storage medium.
Abstract:
A finished-image generating unit generates a finished image showing a result of a process performed on a target image. A transparent-finished-image generating unit generates, when the target image extends to a plurality of pages, a transparent finished image by adjusting a transparency of a non-image portion of the finished image to a predetermined transparency. A transparent-finished-image display unit forms the transparent finished image in a stack, and displays the stacked transparent finished image on a display unit in such a manner that an image portion of the transparent finished image is seen through the non-image portion.
Abstract:
Metal alloy heatsink films for magnetic recording media are disclosed. The metal alloy heatsink films possess both high thermal conductivity and improved mechanical properties such as relatively high hardness. The metal alloy heatsink films also have controlled microstructures which are compatible with subsequently deposited crystalline magnetic recording layers. The films may comprise single phase CuZr or AgPd alloys having a selected crystal structure and orientation. The combination of high thermal conductivity, good mechanical properties and controlled microstructures makes the metal alloy heatsink films suitable for various applications including heat assisted magnetic recording systems.
Abstract:
A thin film structure including a plurality of grains of a first magnetic material having a first Curie temperature embedded in a matrix of a second material having a second Curie temperature, wherein the second Curie temperature is lower than the first Curie temperature and the second material comprises one or more of an oxide, a sulfide, a nitride, and a boride.
Abstract:
A cable slack handling device including a base portion with a first lobe and a second lobe each joined with the base portion. The first and second lobes each have an arcuate exterior wall portion to accommodate cable slack around a perimeter of the cable slack handling device. A connection device holder is located between a portion of the first and second lobes. The connection device holder is adapted to contain cable connection devices. The connection device holder has two opposite ends each adapted to receive cables.
Abstract:
A thin film structure having a magnetic layer and a seed layer positioned adjacent to the magnetic layer is provided. The seed layer includes a L10 structure.
Abstract:
A system and method for nonintrusively determining electric motor efficiency includes a processor programmed to, while the motor is in operation, determine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality of stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of stator input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plurality of stator input currents and the electrical input data. The electrical input data includes at least one of an input power and a plurality of stator input voltages.
Abstract:
A method for providing CMP slurries for copper CMP that have improved pot life by ameliorating hydrogen peroxide degradation in slurries. The method comprises a composition that has a transition metal content of less than about 5 parts per million (ppm), preferably less than about 2 ppm. Preferably the method comprises a composition containing less than about 2 ppm of yttrium, zirconium, and/or iron.
Abstract:
An operation condition inputting system employing a tree state hierarchical menu is formed by classifying various operation conditions of an apparatus by at least one function and segmentalizing the at least one function into menu items to be optionally selected by a visually-impaired person.