Provided are a vibration-suppressing mechanism that has excellent maintainability and can effectively control vibration of a column, and a charged particle beam device using the same. This charged particle beam device comprises: a sample chamber for accommodating a sample that will serve as an object to be observed therein; a column that is disposed on an upper portion of the sample chamber and irradiates and scans the sample with a charged particle beam generated by a charged particle source; and a vibration-suppressing mechanism that is removably provided to the column, said particle beam device being characterized in that the vibration-suppressing mechanism includes a stator affixed to the column, an annular mover that is supported so as to be movable in a direction orthogonal to the axial direction of the column, a plurality of actuators that cause the mover to vibrate in the direction orthogonal to the axial direction of the column, a plurality of vibration sensors affixed to the stator, and a controller that controls the actuators according to output signals from the vibration sensors.

An automated damping system including a damping device arranged and disposed to provide variable resistance to a load. The variable resistance provides resistance values corresponding to a displacement position of the damping device. The system includes a damping profile generator that calculates a damping profile and a sensor is arranged and disposed to measure one or more damping affecting properties. The sensor provides the one or more damping affecting properties to the damping profile generator. The damping profile provides the variable resistance based upon the one or more damping affecting properties of the load.

The invention relates to a system for representing vibrations for a vehicle, comprising a vehicle seat with an upper part and a lower part, which are mounted movably relative to each other by means of a vibration device, wherein at least a first sensor, which is adapted to detect at least one first characteristic of a first acceleration of the upper part relative to the lower part, is arranged on the upper part, and wherein at least one second sensor, which is adapted to detect at least one second characteristic of a second acceleration of the lower part relative to a subsurface of the vehicle, is arranged on the lower part, wherein a display device is arranged with a first section and a second section, in each case exhibiting a complete division into at least two, preferably three segments, wherein the size ratios of the at least two segments to one another can be updated depending on a current value of the at least one first characteristic or the at least one second characteristic.

A vibration suppression unit for an aircraft comprising a mass having a center of mass, a first rotor, a second rotor, a first coupling between the first rotor and the mass, a second coupling between the second rotor and the mass, the first and second couplings having first and second coupling centers offset perpendicularly from a central axis of rotation by different radial distances and offset in axially from the center of mass with respect to the central axis by different axial distances, the first and second coupling centers having a selectively variable displacement angle defined by the angle between lines extending between the central axis of rotation and the first coupling center and the second coupling center, respectively, wherein the first rotor and the second rotor are controllable to produce a vibration control force vector having a controllable magnitude and frequency about the central axis.

A damper assembly has a longitudinal axis and includes a damper housing with a side wall portion and an end wall portion defining a damping chamber containing a quantity of damping fluid. A photon source and a photon receptor are operatively disposed in optical communication with the non-gaseous damping fluid in the damping chamber. The photon source is operable to direct a photon through the non-gaseous damping fluid toward an associated target surface. The photon receptor is operable to receive the photon reflected off the associated target surface through the non-gaseous damping fluid. A sensor suitable for such use as well as spring and damper assemblies and suspension systems are also included.

A vibration control device of a plate-like member 11 includes: a plurality of piezoelectric element actuators 14; at least one piezoelectric element sensor 15; and a control circuit 17 that performs feedback control of operation of the piezoelectric element actuators 14 based on an output voltage of the piezoelectric element sensor 15 so as to suppress vibration of the plate-like member 11. A layout of the piezoelectric element sensor 15 and the piezoelectric element actuators 14 is set such that anti-resonance occurs in an output voltage of the piezoelectric element sensor 15 in a range where the vibration frequency of the plate-like member 11 is equal to or less than a predetermined value. Therefore, generation of noise can be prevented at the frequency. As a result, a gain can be increased at a control target frequency. Therefore, vibration can be suppressed, and noise can be reduced.

A shock absorber includes: a piston which is connected to an upper end of a rod by a fixing member and moves forward and backward in a cylinder; a conductor member which penetrates the piston from an upper end of an outer tube and extends into the rod; a coil which is provided in the rod so as to be capable of detecting a displacement of the conductor member with respect to the rod; an elastic body made of a resin material which is provided adjacent to the conductor member and on an outer side of an outer peripheral surface of the conductor member; and a support portion which supports an outer peripheral surface of the elastic body so as to restrict movement of the elastic body in a direction intersecting a center line of the conductor member.

The invention relates to an agricultural apparatus (1) for spreading material, such as fertilizers, plant protection products, or seed, comprising a distributor linkage (10) which can be folded on both sides, comprising a central part (11), where the central part (11 ) is connected in a rotationally fixed manner to the agricultural apparatus (2 ), two intermediate frames (12a,b) connected to the central part (11) in particular by joints, two lateral booms (13a,b) connected to the respective intermediate frames (12a,b), and a damping assembly (19) for damping motions of the first boom (13a) and the second boom (13b) in the direction of travel of the agricultural apparatus (1), where the damping assembly connects the intermediate frames (12a,b) to one another in particular independently of the central part (11), or where the damping assembly (19) connects the respective intermediate frames (13a,b) to the central part (11).

The invention relates to an assembly for damping vibrations of a structure (I), having a wall element (5a, 5b, 5c, 5d) to be fitted in a upright position, a casing element (Sa, Sb, Sc, 8d) and a damping device (22a, 22b, 22c, 22d), which is connected to the casing element (Sa, Sb, Sc, 8d) and to the wall element (5a, 5b, 5c, 5d) such that a relative movement between the wall element (5a, 5b, 5c, 5d) and the casing element (Sa, Sb, Sc, 8d) is transmitted to the damping device (22a, 22b, 22c, 22d). The damping device (22a, 22b, 22c, 22d) is designed to damp a vibrating movement of the wall element (5a, 5b, 5c, 5d) in a damping direction and is arranged such that the damping device is oriented substantially parallel to a surface of the wall element (5a, 5b, 5c, 5d). The invention further relates to a method for damping vibrations of a structure.

A medical apparatus according to an example includes: a main body including an inputter configured to receive a user command; a display device positioned to be rotatable on one axis with respect to the main body, and extending along one plane; a locking device limiting a rotation of the display device with respect to the main body when pressure being smaller than first pressure is applied to the display device along a direction that is perpendicular to one surface of the display device; and an attenuator attenuating a vibration of the display device with respect to the main body when pressure being smaller than the first pressure is applied to the display device along the direction that is perpendicular to the one surface of the display device.