32results about How to "Effective oscillation" patented technology

A light-beam scanning device includes a base plate having a torsion beam portion formed therein, and a mirror portion supported by the torsion beam portion and adapted to be oscillated. The light-beam scanning device includes one of a piezoelectric member, a magnetostrictive member and a permanent magnet member, which is fixed to or formed as a portion of the base plate. The mirror portion supported by the torsion beam portion is oscillated by a plate wave that is induced in the base plate by applying a voltage or electric field to the piezoelectric, magnetostrictive or permanent magnet member. The light-beam scanning device can efficiently generate a torsional oscillation in the mirror portion in a simplified structure.

A light-beam scanning device includes a base plate having a torsion beam portion formed therein, and a mirror portion supported by the torsion beam portion and adapted to be oscillated. The light-beam scanning device includes one of a piezoelectric member, a magnetostrictive member and a permanent magnet member, which is fixed to or formed as a portion of the base plate. The mirror portion supported by the torsion beam portion is oscillated by a plate wave that is induced in the base plate by applying a voltage or electric field to the piezoelectric, magnetostrictive or permanent magnet member. The light-beam scanning device can efficiently generate a torsional oscillation in the mirror portion in a simplified structure.

Systems and methods are provided for determining optimized settings for a closed-loop stimulation system based on analyzing a phase response curve measured from electrophysiological activity, such as electrical nerve activity or electrical muscle activity. The slope of the phase response curve is computed and used to determine a phase window during which phasic burst stimulation should be provided to achieve a desired effect on oscillations in the subject. When the slope of the phase response curve is positive, a phasic burst stimulation applied during the phase window will decrease synchrony of the oscillations. When the slope of the phase response curve is negative, a phasic burst stimulation applied during the phase window will increase synchrony of the oscillations.

A method for controlling a wind turbine is provided. The method includes monitoring an electrical quantity at an output terminal of the wind turbine. The electric quantity has an amplitude and periodically varying with a grid frequency. The method further includes detecting an oscillation of the amplitude and decreasing active power output from the wind turbine at the output terminal depending on the detected oscillation.

A device includes a plurality of buoyant support members having a plurality of cavities formed therein and are provided with a plurality of pivotal access panels to access the cavities. A plurality of elongated rocker arms and a plurality of associated scrubbing assemblies are operably attached thereto. Such rocker arms extend inwardly from the support members and are laterally adjustable such that the scrubbing assemblies can be positioned along alternating planes during operating conditions. A plurality of hydraulic separators are positioned between the support members and include associated pistons secured to the support members such that a spatial relationship between the support members can be adjusted. A mechanism, partially disposed in the cavities, is included for effectively discharging a volume of fluid through the scrubbing assemblies towards the boat hull.

A methane or methanol producing system is proposed in which laser beams are generated in space by excitation of sunlight, transmitted onto land or sea without loss to obtain optical energy with high efficiency, and irradiated on a hydrogen producing device to produce industrially inexpensive hydrogen with high efficiency, thereby producing methane or methanol. A laser generating device for generating laser beams by exciting radiant light in laser rods by irradiation of sunlight is installed in space. The laser beams generated are transmitted to a light-receiving facility on land or on sea, and irradiated on a hydrogen generating device having a semiconductor electrode with a wavelength suitable for absorbing by the semiconductor electrode or by converting or shifting to a suitable wavelength. Using the hydrogen, methane or methanol is produced by a methane or methanol producing unit.

Systems and methods are provided for determining optimized settings for a closed-loop stimulation system based on analyzing a phase response curve measured from electrophysiological activity, such as electrical nerve activity or electrical muscle activity. The slope of the phase response curve is computed and used to determine a phase window during which phasic burst stimulation should be provided to achieve a desired effect on oscillations in the subject. When the slope of the phase response curve is positive, a phasic burst stimulation applied during the phase window will decrease synchrony of the oscillations. When the slope of the phase response curve is negative, a phasic burst stimulation applied during the phase window will increase synchrony of the oscillations.

A method and a system are described for controlling an electrical machine in a drivetrain of a motor vehicle, the electrical machine being used as a drive unit for the motor vehicle. A pilot control unit determines a pilot control torque as a function of a predefined target torque of the electrical machine, the pilot control unit having a transfer function that corresponds to an oscillation component of a transfer function, ascertained in model-supported fashion for the overall drivetrain, that describes a dependence of a rotation speed of the electrical machine on a torque with which the electrical machine is operated. A control unit for the electrical machine determines a corrected target torque for the electrical machine by superimposing the pilot control torque on the predefined target torque and controlling the electrical machine as a function of the corrected target torque.

An elevator installation with an elevator car and a counterweight, a suspension cable suspending the elevator car and the counterweight, and a compensating cable compensating the effect of the weight of the suspension cable, is equipped with a compensating cable guide which for the purpose of guiding the compensating cable has at least one brush.

It is provided a radio oscillating system for oscillating a radio signal. The system has an optical modulator for oscillation, a modulating means for inputting a modulating signal of a frequency of fm into the optical modulator to modulate a carrier wave so as to interpose sideband waves onto the carrier wave at positions shifted with respect to the frequency of the carrier wave by the frequency “fm”; and an optical receiver for oscillation for receiving beam from the optical modulator and converting the beam into an electrical signal. The system further has a radiating means for radiating radio signal of a frequency of 2fm based on the electrical signal. An input voltage Vp-p applied on the optical modulator is 1.0 times or more and 1.99 times or less of a half-wavelength voltage Vπ of the optical modulator.

It is provided a radio oscillating system for oscillating a radio signal. The system has an optical modulator for oscillation, a modulating means for inputting a modulating signal of a frequency of fm into the optical modulator to modulate a carrier wave so as to interpose sideband waves onto the carrier wave at positions shifted with respect to the frequency of the carrier wave by the frequency “fm”; and an optical receiver for oscillation for receiving beam from the optical modulator and converting the beam into an electrical signal. The system further has a radiating means for radiating radio signal of a frequency of 2 fm based on the electrical signal. An input voltage Vp−p applied on the optical modulator is 1.0 times or more and 1.99 times or less of a half-wavelength voltage Vπ of the optical modulator.

A first voltage source converter and converter station including such a first voltage source converter, as well as a method and computer program product for controlling the first voltage source converter are disclosed. The first voltage source converter has a DC side for connection to a DC system, has an AC side for connection to an AC system and is interconnected with an AC side of a second voltage source converter, which has a DC side connected to the DC system. The first voltage source converter includes a number of converter valve pairs, each being connected to a corresponding AC phase of the AC system and a control unit controlling the converter valves to generate at least one AC waveform and to reduce oscillations between the converters.

A laser device capable of efficiently oscillating laser light and always obtaining a stable beam form is provided. For this purpose, in the laser device including an amplifying section (18) in which a laser medium is amplified to oscillate laser light (11), and an optical element for separating part of the laser light (11) oscillated, and shaping a beam form of the laser light (11) into a desired form to output the same, wherein the optical element has at least either one of a partial reflecting portion (26) for partially reflecting the laser light (11) or a non-reflective portion (28) for transmitting the laser light (11) at high transmissivity, each of which is provided on approximately a center portion, and a total reflecting portion (27) which is provided outside a perimeter of the partial reflecting portion (26) or the non-reflective portion (28), and which reflects the laser light (11) at high reflectivity.

A voltage sensor includes an oscillator that has a circular or roughly circular shape and is supported by a mechanical support member, a fixed electrode that has a predetermined gap between the oscillator and the fixed electrode, and a drive electrode that is placed at a position different from the fixed electrode across the oscillator, and to which an AC drive voltage is applied to make the oscillator oscillate. In the voltage sensor, an electrostatic attractive force acts on the oscillator by applying a voltage to the fixed electrode, and a resonance frequency of the oscillator changes.

The invention discloses a walking device for an elderly-assisting robot, comprising a walking frame, a steering motor seat, a steering shaft, a deflection support seat, a deflection vibration damping pad, a deflection seat and a walking assembly, wherein the walking frame is telescopically adjustable A high-strength tube body, the bottom of the companion frame is fixed with a steering motor seat, a steering shaft is rotated in the steering motor seat, and the rotation of the steering shaft is driven by the steering motor arranged in the steering motor seat The bottom of the steering shaft is fixed with a deflection support seat, and the bottom of the deflection support seat is symmetrically arranged with two sets of deflection damping pads along the axis direction of the steering shaft, and each group of the deflection damping pads is an interval There are multiple sets; a deflection seat is commonly connected to the bottom of each of the deflection damping pads, and the deflection seat can be slightly moved upward by the damping pad for overall vibration damping; the bottom of the deflection seat is also provided with a walking component Mounting base for mounting the travel components.

The invention discloses a slagging-preventing gas turbine combustion chamber with biomass fuel utilized. The slagging-preventing gas turbine combustion chamber comprises the combustion chamber, an air layer and a cylinder sleeve layer which are sequentially arranged from inside to outside. The bottom end of the combustion chamber is arranged in an annular clamping groove in the top end of a slag collector, a combustion chamber air inlet and a fuel inlet channel are sequentially formed in the top end of the combustion chamber from bottom to top, and a plurality of layers of hole-shaped fire grates are arranged in the combustion chamber. An air layer air inlet is formed in the bottom end of the air layer, and an air layer air outlet is communicated with the combustion chamber air inlet. The two ends of the cylinder sleeve layer are connected with the air layer through bearings, and the side wall of the cylinder sleeve layer is provided with a cylinder sleeve layer air inlet and a cylinder sleeve layer air outlet. Fan blades are arranged on the outer wall of the air layer in the circumferential direction. An air outlet of a compressor is communicated with the air layer air inlet and the cylinder sleeve layer air inlet. Fuel gas combusted through the combustion chamber enters a gas turbine to act through a fuel gas channel, and meanwhile the gas turbine drives the coaxial compressor to work. The slagging-preventing gas turbine combustion chamber can be widely used in the field of combustion and utilization of biomass energy such as straw.

The invention discloses a constant temperature control device of a microwave synthesizer and relates to the field of chemical synthesis equipment. The constant temperature control device comprises a microwave control system, a temperature monitoring system and a rotation driving system. The microwave control system comprises a microwave emitter, a microwave emission controller, a PLC controller and a DC 24V power supply. The temperature monitoring system comprises an infrared temperature detection probe and an infrared temperature detection controller. The rotation driving system comprises a servo motor driver, a servo motor, a rotation platform, a main shaft, a main disk and a reactor. Equalization of temperature in the reactor is ensured through real-time feedback of data; and the constant temperature control device can carry out multiple groups of experiment reactions in the reactor, thereby greatly improving reaction efficiency, and improving reaction effect.