A six-degree-of-freedom large-stroke uncoupling large hollow series-parallel piezoelectric micro-motion platform includes a base, a movable platform top, a second platform and a first platform, wherein a first guide unit, a second guide unit, a third guide unit, a fourth guide unit, a fifth guide unit and a sixth guide unit are respectively connected in sequence to the second platform and the first platform; the first guide unit is internally provided with a first drive unit, the second guide unit is internally provided with a second drive unit, and the third guide unit is internally provided with a third drive unit; and the base is provided with a fourth drive unit, a fifth drive unit, a sixth drive unit and a seventh drive unit, the fifth drive unit is provided below the second drive unit, and the sixth drive unit is provided below the third drive unit.

A driving device includes a plurality of motive power generators that receive electric power supply and generate motive power, the plurality of motive power generators form a plurality of sets of motive power generators in which two or more of the motive power generators are electrically parallel-connected, and the plurality of sets of motive power generators are electrically series-connected. A driving device includes a plurality of vibrators that receive electric power supply and vibrate and provide drive power for driving a driven member to the driven member, the plurality of vibrators form a plurality of sets of vibrators in which two or more of the vibrators are electrically parallel-connected, and the plurality of sets of vibrators are electrically series-connected.

A posture adjustment device for an optical sensor includes: a controller, a posture detector, and a posture adjustment structure. An optical sensor to be detected is fixed on the posture adjustment structure. The posture detector receives an emitted beam of the optical sensor to be detected, detects a posture of the optical sensor to be detected according to the emitted beam, and sends posture information to the controller. The controller controls, according to the posture information, the posture adjustment structure to adjust the posture of the optical sensor to be detected.

Provided is a piezo-actuated planar motor, comprising a planar substrate and a mover installed on the planar substrate, the piezo-actuated planar motor further comprising: at least one piezo driving leg which is disposed on said mover so as to drive said mover to move on said planar substrate omnidirectionally in the plane. Further provided is a method of driving a planar motor by using piezo driving legs, which implements three movement modes, i.e., a sliding mode, a walking mode, and a fine tuning mode. The sliding mode has the fastest speed of motion, the walking mode has a relatively slow speed of motion but has a high positioning accuracy and a high-accuracy tracking capability, and the fine tuning mode is used for the adjustment of the planar motor at a final position and has the highest positioning accuracy. The piezo-actuated planar motor of the present invention can effectively overcome the defects of a small movement range and a low speed in a conventional nano-positioning platform.

There is provided a medical device whose occupied space is reduced. According to an aspect of the present invention, a medical device (1) adjusts a position of a medical instrument including a rod-like insertion unit (201) for being inserted into a body. The medical device includes an ultrasonic actuator that holds the insertion unit of the medical instrument, and that displaces or rotates the insertion unit with respect to the ultrasonic actuator, and an actuator fixing unit (101 and 102) that fixes a position of the ultrasonic actuator to a surgical site.

A hybrid actuator is provided in which a piezoelectric element and an actuator are incorporated with each other. The hybrid actuator includes: a housing; a stator secured to the housing and having a coil; a vibrator having a permanent magnet configured to vibrate due to a mutual electromagnetic force with the stator; an elastic member configured to elastically support the vibrator relative to the housing; a piezoelectric element attached to one surface of the housing; and an F-PCB (flexible printed circuit board) applying an electric current to the piezoelectric element and the coil inside the housing. A part of the F-PCB extends outside the housing. Input terminals are formed on the part of the F-PCB which extends outside the housing. The input terminals are configured to receive a vibration signal and an audio signal so that the hybrid actuator can reproduce both the vibration signal and the audio signal.

A positioning device includes a chassis, a plate to be positioned, wherein it further comprises a motor comprising a stator which is connected to the chassis and a rotor,a shaft which is connected to the rotor driven by the motor, which is mobile in rotation relative to the chassis in a first direction and in a second direction opposing the first direction, a first element for the transmission of rotational movement which is configured to be driven in rotation by the shaft in the first direction and to be free in the second direction, a second element for the transmission of rotational movement which is configured to be driven in rotation by the shaft in the second direction and to be free in the first direction, a first connecting rod which is connected to the plate by a first pivot connection and which is connected to the first element for the transmission of rotational movement by a second pivot connection which is offset to the axis of rotation of the first element for the transmission of rotational movement, a second connecting rod which is connected to the plate by a third pivot connection and which is connected to the second element for the transmission of rotational movement by a fourth pivot connection which is offset to the axis of rotation of the second element for the transmission of rotational movement, a connecting element having at least two degrees of rotational freedom between the plate and the chassis.

A system for controlled motion of circuit components to create reconfigurable circuits comprising: a support; a substrate operatively associated with the support; actuators operatively associated with the support configured to physically move circuit components and to move the circuit components into physical and electrical contact with the substrate; the substrate comprising at least one conductive segment arranged to electrically connect circuit components when electrical contacts of circuit components are placed in contact with at least one conductive segment; and control circuitry configured to control the first and second actuators to thereby position the circuit components relative to the substrate; whereby circuit function is determined by the selection of circuit components and the location and orientation of circuit components relative to the substrate and conductive segments to create a reconfigurable circuit.

A monolithic, bulk piezoelectric actuator includes a bulk piezoelectric substrate having a starting top surface and an opposing starting bottom surface and a at least two electrodes operatively disposed on the bulk piezoelectric substrate consisting of at least two discrete electrodes disposed on either/both of the starting top surface and the starting bottom surface and at least one electrode disposed on the respective other starting bottom surface or starting top surface. A stage includes a base, at least two of the monolithic, bulk piezoelectric actuators disposed on the base, a movable platform disposed on the base, and a respective number of deformable connectors each having a first connection to a respective one of the piezoelectric actuators and a second connection to a respective portion of the movable platform. A method for monolithically making a monolithic, bulk piezoelectric actuator involves a direct write micropatterning technique.

A vibration actuator unit includes: an electromechanical converting element that converts an electric vibration of an applied actuating voltage into a mechanical vibration; and a contact portion that contacts an actuated surface of an actuating subject and a transmits a mechanical vibration of the electromechanical converting element to the actuated surface as an actuating force, wherein the electromechanical converting element periodically bends within a first vibration plane crossing the actuated surface to vibrate the contact portion within the first vibration plane, and periodically bends within a second vibration plane crossing the first vibration plane to vibrate the contact portion within the second vibration plane.