摘要:
Provided is a plasma ignition technique allowing easy and reliable ignition and reignition of plasma without monitoring or manual handling. A plasma ignition system according to this technique is provided with a radio-frequency power supply configured to supply a predetermined high frequency signal to an applied electrode for generating plasma; a matching device configured to match impedance on a side of the radio-frequency power supply and impedance on a side of the applied electrode; a forward wave/reflected wave detector configured to detect a forward wave and a reflected wave of the high frequency signal; a high-voltage generator configured to generate a predetermined high voltage; and a controller configured to superimpose the high voltage on the high frequency signal when a ratio of the reflected wave to the forward wave is greater than a first threshold value.
摘要:
Provided are a soft magnetic powder for obtaining a dust core having a low iron loss, the dust core, and a method for producing a dust core. The present invention relates to a soft magnetic powder including a plurality of soft magnetic particles, each having an insulating layer. The Vickers hardness HV0.1 of a material constituting the soft magnetic particles is 300 or more, and the insulating layer contains Si, O, and at least one of an alkali metal and Mg. As long as the soft magnetic powder has such features, a material having a high electric resistance, such as an iron-based alloy, can be used. The eddy current loss can be reduced, and it is possible to effectively obtain a dust core having a low iron loss.
摘要:
Provided is a plasma ignition technique allowing easy and reliable ignition and reignition of plasma without monitoring or manual handling. A plasma ignition system according to this technique is provided with a radio-frequency power supply configured to supply a predetermined high frequency signal to an applied electrode for generating plasma; a matching device configured to match impedance on a side of the radio-frequency power supply and impedance on a side of the applied electrode; a forward wave/reflected wave detector configured to detect a forward wave and a reflected wave of the high frequency signal; a high-voltage generator configured to generate a predetermined high voltage; and a controller configured to superimpose the high voltage on the high frequency signal when a ratio of the reflected wave to the forward wave is greater than a first threshold value.
摘要:
A process for producing metallurgical powder includes a step of coating surfaces of a plurality of first particles 10 with a first binder 30 and a step of coating a surface of the first binder 30 with a plurality of second particles having a diameter smaller than a particle diameter of the first particles 10. In the step of coating with the second particles 20, a plurality of second particles 20 having a diameter one fifth or less of the particle diameter of the first particles are used.
摘要:
The invention offers a method for producing a soft magnetic material. The method effectively produces a soft magnetic material having soft magnetic metallic particles each coated with a plurality of insulating layers. A soft magnetic material to be used as the material for a dust core is produced through the following steps: a step of preparing a material powder having composite magnetic particles produced by forming an insulating film containing hydrated water on each of the surfaces of soft magnetic metallic particles, a step of preparing a resin material containing silicone that cures through a hydrolysis-polycondensation reaction, and a step of mixing the material powder and the resin material in a heated atmosphere at 80° C. to 150° C. to form a silicone film on the surface of the insulating film.
摘要:
A method of producing a soft magnetic material is disclosed, wherein the method includes forming a plurality of metal magnetic particles having a ratio of a maximum diameter to an equivalent circle diameter greater than 1.0 and at most 1.3, forming irregularities on a surface of each of the plurality of metal magnetic particles such that a specific surface area of each of the plurality of metal magnetic particles is at least 0.10 m2/g, and coating the plurality of metal magnetic particles with an insulating coating. The irregularities are formed by immersing the plurality of metal magnetic particles in an aqueous sulfuric acid.
摘要:
A switch for urging a driver to perform an operation that is required when the smart ignition function is invalid. The switch is used by a driver to start the engine of a vehicle when the vehicle communicates with a portable device to verify the portable device. The portable device has an end portion. The switch includes a push button pushed by the driver. The push button includes a guide portion engaged with the end portion of the portable device.
摘要:
A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.
摘要:
A ureter stent designed for assisting the draining of urine with calculus fragments. The ureter stent includes a first holding portion, a second holding portion and a junction portion. The first holding portion has a pigtail shape for holding itself in a kidney. The second holding portion has a pigtail shape for holding itself in a bladder. The junction portion joins the first holding portion and the second holding portion and placed in a ureter. The junction portion is made of a metal round wire having no internal flow path. Urine flows outside the ureter stent.
摘要:
An electric steering lock capable of outputting a signal correctly indicating an operation state of a steering lock mechanism even when the operation voltage of a lock detector decreases. The electric steering lock includes a CPU, a signal hold circuit, and an OR circuit. When the steering lock mechanism unlocks a steering wheel, an unlock sensor provides an H level detection signal to the CPU and the signal hold circuit. In response to the detection signal, the CPU issues a state hold command to the signal hold circuit. In response to the state hold command, the signal hold circuit generates an H level hold signal in correspondence with the detection signal. The OR circuit provides an H level signal to an immobilizer ECU when at least one of the detection signal from the unlock sensor or the hold signal has an H level.