72 results about "Sinusoidal oscillation" patented technology

Circuits and methods are given, to realize and implement an oscillator circuit with an Average Controlled (AC) Resonator Driver. A newly introduced additional Field Effect Transistor within a voltage average stabilizing regulation loop controlling the crystal oscillator's amplifier element produces an average voltage value stabilized sinusoidal oscillation signal which is then transformed into a square wave with a precise duty-cycle of exactly 50%. Said circuits and methods are designed in order to be implemented with a very economic number of components, capable to be realized with modern integrated circuit technologies.

The invention discloses a method for controlling corner cracks of a boron micro-alloy steel continuous-casting billet. The method comprises the following steps: a refining step: after adjusting components and temperature, feeding an aluminum wire to steel liquid, wherein in the treated steel liquid: S is less than or equal to 0.01 percent, Mn / S is more than or equal to 40, N is less than or equal to 0.0055 percent, Als is equal to 0.015 to 0.035 percent; after feeding the aluminum wire, slightly blowing argon for four minutes, adding ferrotitanium into the steel liquid, wherein the content of Ti in the steel liquid is 0.015 to 0.025 percent, then feeding ferro-boron into the steel three minutes later, carrying out the calcium treatment for the steel liquid; a continuous casting step: the width of the casting billet is 1600mm to 2100mm, the thickness of the casting billet is 180mm to 250mm, controlling the pulling speed at 0.9 to 1.4 m / min when pouring the steel liquid; oscillating a crystallizer in a non-sinusoidal manner when the steel liquid is poured, the waveform deflection rate of the non-sinusoidal oscillation curve is 10 percent, and the negative slip time tn is 0.137 to 0.145s; stabilizing the water amount on a wide surface and a narrow surface of the crystallizerat 4100 to 4500L / min and 410 to 450L / min; adding protection residue into the crystallizer, wherein the alkalinity of the protection residue is 1.2+ / -0.1, a melting point is 1140+ / -20DEG C, and the viscosity at 1300 DEG C is 0.15+ / -0.05Pa.s; controlling the secondary cooling water amount at 0.5 to 0.55 L / kg during the continuous casting process.

A piezoactuator has a diaphragm, and the diaphragm has flat piezoelectric elements that oscillate in a longitudinal oscillation mode and a sinusoidal oscillation mode. A first electrode for detecting oscillation in the longitudinal oscillation mode, and a second electrode for detecting the amplitude of oscillation in the sinusoidal oscillation mode, are disposed on the surface of the diaphragm. When the piezoactuator is driven with a drive signal, the phase difference of a first detection signal output from the first electrode and a second detection signal output from the second electrode is detected. The frequency at which the detected phase difference becomes the maximum phase difference is then obtained, and a drive signal of a matching frequency is applied to the piezoelectric elements.

Circuits and methods are given, to realize and implement an oscillator circuit with an Average Controlled (AC) Resonator Driver. A newly introduced additional Field Effect Transistor within a voltage average stabilizing regulation loop controlling the crystal oscillator's amplifier element produces an average voltage value stabilized sinusoidal oscillation signal which is then transformed into a square wave with a precise duty-cycle of exactly 50%. Said circuits and methods are designed in order to be implemented with a very economic number of components, capable to be realized with modern integrated circuit technologies.

The oscillatory dynamics of inferior olive (IO) neurons found in the olivo-cerebellar network of the brain are reproduced and applied to various control applications. An IO neuron model is provided which produces quasi-sinusoidal oscillations with a characteristic amplitude and frequency. Action potentials occur at the peaks of the oscillations and have precise timing properties. Stimuli applied to the IO neuron model show no changes in oscillation amplitude and frequency but do produce a shift of the oscillation phase, and hence a time shift of the corresponding action potentials. The resulting phase is defined by the strength of the stimulus and does not depend on when the stimulus is applied, thus providing a self-referential phase reset (SPR) effect. The oscillations of multiple IO neurons, or their models, coupled together tend to become organized in space and time in the form of oscillatory phase clusters. The phases of the IO oscillators can be quickly set to a desired phase pattern irrespective of the history of phase evolution. A circuit for implementing the IO neuron model and a control system based on the circuit are described.

A receiving assemblage is provided for a control device in a vehicle, having a voltage generator for generating a synchronization pulse, which encompasses a first voltage source, a current source, and a current sink, the voltage generator generating the synchronization pulse within predefined specification limits with a predefined shape and a predefined time-related behavior, and the receiving assemblage outputting the synchronization pulse via a data bus to at least one sensor for synchronization of a subsequent signal transfer, the voltage generator generating the synchronization pulse via the current source and the current sink, substantially as a sinusoidal oscillation, by charging and / or discharging a bus load, and to a method for generating a synchronization pulse.

The anisotropic adhered RE permanent magnet orientating and forming apparatus includes an upper molding punch head, a lower molding punch head, a mold sleeve, a winding and a current source. The lower end of the upper molding punch head and the upper end of the lower molding punch head are set inside the mold sleeve, the winding is wound outside the mold sleeve, the current source is connected across the winding to form amplitude reducing sinusoidal oscillation magnetic field. The amplitude reducing sinusoidal oscillation magnetic field can complete both magnetic orientation process and ideal demagnetization process during orientating and forming the mixture of magnetic alloy powder and binding resin inside the mold sleeve, so that the present invention can produce anisotropic adhered RE permanent magnet in low cost.

Systems and methods for aligning the phase of a PLL with an incoming data signal. In one embodiment, when a data signal is received in a PLL, a phase perturbation signal is generated and injected into the PLL. The PLL then performs a phase alignment procedure to lock on to the received data signal. The phase perturbation signal is a damped sinusoidal oscillation that is injected into the PLL when each of a plurality of data packets is received. The perturbation signal has an amplitude sufficient to bump the PLL out of a quasi-stable state around 180 degrees out of phase with the incoming data signal, but is damped to less than a degree of phase shift within 30 ns of being injected.

The invention discloses a chaotic oscillator, which comprises a negative transconductance sinusoidal oscillator circuit and a differential amplification circuit unit, wherein an output signal of the sinusoidal oscillator circuit is amplified by the differential amplification circuit unit, and the amplified signal is taken as output to obtain a continuous chaotic oscillation signal. Meanwhile, the invention discloses the application of the chaotic oscillator as a random bit generator. A sinusoidal oscillator provided by the invention is suitable to be realized on a single integrated circuit chip, and has a compact structure, low manufacturing cost, very high output frequency, high balance performance and high source suppression and noise immunity functions. The random bit generator designed according to the sinusoidal oscillator inherits the advantages. As a design scheme of a real random bit generator, the invention has a very high practical value.

Disclosed is a piano sound source apparatus for adding a piano sound source providing a plurality of sinusoidal oscillation frequencies and a noise source providing a plurality of noise oscillation frequencies to output a composite tone. The apparatus includes an oscillation control unit that controls the frequency and amplitude of each of sine waves corresponding to the sinusoidal oscillation frequencies on the basis of time, an amplitude control unit that controls the amplitude of each of the sine waves corresponding to the sinusoidal oscillation frequencies in accordance with the intensity of the composite tone, and a mixing-proportion control unit that controls the amplitude of each of the noise oscillation frequencies in accordance with the intensity of the composite tone to control the mixing proportion of the amplitudes of the noise oscillation frequencies and those of the sine waves corresponding to the sinusoidal oscillation frequencies.