A vibrating actuator is disclosed, comprising: a magnet arrangement including at least one magnet (1); a hollow member (4) comprising at least one coil member (2) with a coil transversally surrounding a cavity (5) forming a longitudinal passageway for receiving the magnet arrangement and permitting a longitudinal relative movement between the hollow member (4) and the magnet arrangement; and elastic means (6) interconnecting the magnet arrangement and the hollow member (4). In one aspect, the elastic means (6) are thin membranes having an oblong shape with transversal indentations (10) on their opposite long sides. In another aspect, at least two magnets (1) are arranged with same polarities facing each other inside a magnet frame (8) at least partially surrounding the magnets (1). Furthermore, methods for assembling the magnet arrangement of a vibrating actuator, the hollow member of a vibrating actuator, and the overall vibrating actuator are disclosed.

The present disclosure provides a linear motor having a housing with an accommodation space; a vibrator accommodated in the accommodation space; and a first stator locating opposite to the vibrator and fixed to the housing. The first stator includes a first circuit board opposite to the vibrator, a first coil on a the side of the first circuit board close to the vibrator, and a first magnetic conductive sheet locating on a side of the first circuit board away from the vibrator. The linear motor further has a spring bracket supporting the vibrator in the accommodation space. The present invention is to provide a linear motor which improves the space utilization of the linear motor in a thickness direction.

A vibration control apparatus configured to control a vibration generated by a vibration apparatus, using a signal, includes processer circuitry, and an energy controller configured to convert a waveform of the signal while maintaining energy of the signal.

A mounting substrate includes a resin layer and a first conductor including a contact surface in contact with the resin layer. The first conductor includes a first surface facing toward the mounting surface and a second surface on a side opposite to the first surface and extends in a direction parallel or substantially parallel to the mounting surface. The first conductor has a difference of a maximum value and a minimum value of a distance between the first surface and the mounting surface smaller than a difference of a maximum value and a minimum value of a distance between the second surface and the mounting surface. The resin layer includes a resin wall portion surrounding an opening portion partially exposing the first conductor on the mounting surface side, and the first conductor includes an exposed portion defining a mounting electrode.

A haptic actuator includes mechanical links defining a first J-trajectory and mechanical links defining a second J-trajectory as well as a motor coupled to the mechanical links so as to synchronously accelerate a first mass over the first J-trajectory and a second mass over the second J-trajectory. During a first time interval, reactive forces of the first mass accelerating substantially balance reactive forces of the second mass accelerating and during a second time interval reactive forces of the first mass accelerating do not substantially balance reactive forces of the second mass accelerating. This un-balanced condition results in a tap signal being produced.

An actuator includes a piezoelectric element, a vibration plate, a support, a holder, and first and second fixing portions. The vibration plate has the piezoelectric element joined thereto and bends and vibrates in accordance with expansion and contraction of the piezoelectric element. The support supports the vibration plate on a base to allow bending and vibration of the vibration plate. The holder holds an object of vibration to the vibration plate. The first fixing portion is coupled to the support and fixes the support to the base. The second fixing portion is coupled to the holder and fixes the object of vibration to the holder. The first and second fixing portions are each displaceable in a direction intersecting the direction of the expansion and contraction of the piezoelectric element.

An actuator includes a piezoelectric element, a vibration plate, a support, a holder, and first and second fixing portions. The vibration plate has the piezoelectric element joined thereto and bends and vibrates in accordance with expansion and contraction of the piezoelectric element. The support supports the vibration plate on a base to allow bending and vibration of the vibration plate. The holder holds an object of vibration to the vibration plate. The first fixing portion is coupled to the support and fixes the support to the base. The second fixing portion is coupled to the holder and fixes the object of vibration to the holder. The first and second fixing portions are each displaceable in a direction intersecting the direction of the expansion and contraction of the piezoelectric element.

A mechanical vibration source for a shear wave elastography system has a contact surface shaped to provide a point source of mechanical energy when striking a target surface of a medium. This point source usefully mitigates high frequency components and other artifacts in an induced shear wave. Other techniques may be used in combination with this mechanical energy source to improve shear wave elastography and facilitate miniaturization for deployment, e.g., within a handheld imaging device.

A device for the fragmentation of a calculus includes a probe, and a drive unit for deflecting the probe along the longitudinal extension thereof. The drive unit includes a first drive element for periodically deflecting the probe and a second drive element for the pulsed deflection of the probe. The drive unit is configured such that periodic deflection and pulsed deflection can be superimposed.

A device for the fragmentation of a calculus includes a probe, and a drive unit for deflecting the probe along the longitudinal extension thereof. The drive unit includes a first drive element for periodically deflecting the probe and a second drive element for the pulsed deflection of the probe. The drive unit is configured such that periodic deflection and pulsed deflection can be superimposed.