摘要:
It is intended to provide a method capable of simply aggregating magnetic particles having a surface modified with a thermoresponsive polymer at a given temperature without heating or cooling an aqueous solution containing the magnetic particles, and a separation method and a detection method of a substance to be detected in a sample using the method. The method of separating a substance to be detected from a sample includes the steps of: mixing an adsorbent and the sample in an aqueous solution to adsorb the substance to be detected on the adsorbent, aggregating the adsorbent by changing a salt concentration in the aqueous solution; and collecting the adsorbent from the aqueous solution by a magnetic force, wherein said adsorbent comprises a magnetic particle of an average particle size of 50 to 1000 nm, a surface of which is modified with a thermoresponsive polymer and is immobilized with a substance having an affinity for the substance to be detected.
摘要:
A vibration actuator has: a fixing body; a movable body; and first and second elastic support parts disposed to sandwich the movable body in the vibration direction and configured to movably support the movable body with respect to the fixing body by elastic deformation, wherein the movable body includes: a core provided to both sides of a magnet of the movable body and having an opening; and spring stoppers disposed between the magnet and the first elastic support part and between the magnet and the second elastic support part; and wherein the spring stoppers are each fixed such that one end is fixed to one of the first or second elastic support part and such that another end is fixed by insertion into the opening and abutment on a surface of the movable body core facing the one of the first or second elastic support part.
摘要:
A vibration apparatus, which is provided with vibration actuators with which a moving body elastically supported on a fixed body can be vibrated linearly with respect to the fixed body at a resonance frequency, has a mounting case in which multiple vibration actuators are mounted. The multiple vibration actuators oscillate at roughly the same resonance frequency, and in a manner such that the respective oscillation axis lines along the oscillation directions of the moving bodies are parallel to each other and that the center of gravity of the mounting case is interposed between the oscillation axis lines, the vibration actuators are disposed in orientations according to which the actuators excite oscillations in mutually opposite directions on the respective oscillation axis lines.
摘要:
A vibration actuator includes: a fixing part including one of a coil and a magnet; a movable part including the other one of the coil and the magnet; and an elastic supporting part configured to support the movable part movably with respect to the fixing part. The movable part is configured to reciprocate with respect to the fixing part in a vibration direction through cooperation between the powered coil and the magnet. The magnet is disposed away from and radially inside the coil. The elastic supporting part has a plate-like shape in which one end of the elastic supporting part is fixed to the fixing part at the side of the movable part and the other end is fixed to the movable part, and cantilevers the movable part in such a manner that the movable part can reciprocate in the vibration direction.
摘要:
A vibration actuator includes: a fixing body having N-fold (N is a natural number) of 2 of core pole parts and a coil wound around each of the core pole parts; a movable body having a magnet part disposed being separated from each of the core pole parts in an axial direction of each of the core pole parts, for each of the core pole parts; and an elastic support part that movably supports the movable body, in which the magnet part has a magnetic pole disposed on each of the core pole part sides and facing each of the core pole parts, and in which the movable body vibrates in a direction orthogonal to both directions including a direction in which the N-fold of 2 of the core pole parts are aligned and the axial direction of the coil by the energization of the coil.
摘要:
An electromagnetic converter that converts kinetic energy to electric energy, or converts electric energy to kinetic energy, includes a core configured to have a coil disposed; a magnet configured to be magnetically coupled with the core; a yoke configured to have the magnet disposed; a fixing portion configured to have the core and the yoke placed; and an elastic member configured to support the yoke, and to elastically deform so as to displace the magnet with respect to the core. Both ends of the elastic member are fixed to the fixing portion. The magnet and the yoke can rotate around an axis in an extending direction of the elastic member.
摘要:
An actuator includes a movable body including a cylindrical magnet portion, an immovable body including pole tooth faces and a coil, and a torsion coil spring supporting a movable body to the immovable body. The coil receives an alternating current of a frequency substantially equal to a resonance frequency of the movable body and excites the pole tooth faces to have alternately different polarities in the circumferential direction. One end of the torsion coil spring is fixed to one end of a rotary shaft of the movable body and other end is fixed to the immovable body. The torsion direction of the torsion coil spring is arranged to be coaxial with the rotary shaft. The torsion coil spring supports the movable body to enable the movable body to vibrate at the resonance frequency of the movable body.
摘要:
A rotor includes a rotor core comprised of magnetic steel sheets laminated in the axial direction and a pair of end plates that are respectively provided on the axial end faces of the rotor core so as to together sandwich the rotor core in the axial direction. The rotor is rotatably disposed in an electric rotating machine with a circumferential surface of the rotor core facing a stator. At least one of the end plates is configured to have through-holes, each of which is formed so as to axially penetrate the end plate, and a pressing portion that is radially positioned on the stator side of the through-holes. The pressing portion abuts a corresponding one of the axial end faces of the rotor core and exerts an axial load on the corresponding axial end face of the rotor core by an elastic force of the end plate.
摘要:
A game system comprises image obtaining means, direction calculation means, moving means, and display control means. The image obtaining means obtains an image taken by an imaging device. The direction calculation means calculates a direction originally determined from the image of an imaging target included in the image taken by the imaging device. The moving means moves an operation target in a predetermined direction in accordance with the calculated direction. The display control means generates an image in accordance with the movement of the operation target performed by the moving means and displays the generated image on a screen of a display device.
摘要:
Disclosed is an actuator that realizes reciprocal rotational motion of an electric toothbrush, for example, without utilizing a drive transmission mechanism that is separate from the drive source. In the actuator, a fixed body (120) has a coil (128) that is disposed around a magnet (160) and faces the magnetic planes with different polarities within the magnet (160) at individual prescribed distances, and an outer yoke (150) that covers the outer periphery of the coil (128). The fixed body (120) rotatably supports a movable body (110), which holds the magnet (160), via a coil spring that is an elastic member (130) made from a wire. An alternating current supplying part (140) supplies an alternating current having roughly the same resonance frequency as that of the fixed body (120) to the coil (128) to cause the movable body (110) to vibrate in a reciprocal rotational motion. The coil spring that is the elastic member (130) uniformly disperses stress generated by the vibration.