145results about How to "Reduced damping" patented technology

An IC chip for a high frequency region, particularly a packaged substrate in which no malfunction or error occurs even if 3 GHz is exceeded. A conductive layer on a core substrate is formed at a thickness of 30 μm and a conductor circuit on an interlayer resin insulation layer is formed at a thickness of 15 μm. By thickening the conductive layer, the volume of the conductor can be increased and resistance can be reduced. Further, by using the conductive layer as a power source layer, the capacity of supply of power to an IC chip can be improved.

The embodiments disclosed generally relate to a read head in a magnetic recording head. The read head utilizes a spin Hall effect layer disposed on the free magnetic layer. Electrical bias is applied to the top shield, or lead layer, longitudinally so that the current is longitudinally driven through the spin Hall effect layer. The spin Hall effect layer may comprise Pt, Ta, W, copper doped with either bismuth or iridium, a noble metal having group 5d non-magnetic impurities, or combinations thereof. The spin Hall effect layer, together with the longitudinally applied bias, reduces the damping in the free magnetic layer and hence, reduces the thermal magnetic noise of the read head.

A high-sensitivity and low-noise micromachined capacitive lateral accelerometer device having an input axis and a monolithic, three-axis accelerometer utilizing the device are provided. The device includes at least one electrode having a side surface normal to the input axis. A relatively large proofmass has at least one side surface normal to the input axis and extends along a width of the proofmass. The proofmass is movable against acceleration relative to the at least one electrode due to inertial force along the input axis to obtain a capacitive variation between the at least one electrode and the proofmass. The side surfaces are spaced apart to define a narrow, high-aspect ratio sensing gap which extends along substantially the entire width of the proofmass. The proofmass forms a sense capacitor with the at least one electrode.

A disc pump system includes a pump body having a substantially cylindrical shape defining a cavity for containing a fluid, the cavity being formed by a side wall closed at both ends by substantially circular end walls, at least one of the end walls being a driven end wall. The system includes an actuator operatively associated with the driven end wall to cause an oscillatory motion of the driven end and an isolator is operatively associated with the peripheral portion of the driven end wall to reduce damping of the displacement oscillations. The isolator comprises a flexible material, which in turn includes an RFID tag.

A transmitter for pilot tone navigation in a magnetic resonance tomography system includes a power supply and an antenna. The transmitter is configured to transmit a pilot tone signal via the antenna. The transmitter also includes a decoupling element in order to protect a transmitter output from signals that the antenna receives with excitation pulses of the magnetic resonance tomography system during a magnetic resonance tomography. In a method, movement-dependent changes to the pilot tone signal of the transmitter are identified by a controller of the magnetic resonance tomography system.

A method of capturing images using a laser scanner equipped with a 2D micro actuator. The 2D micro actuator allows for laser beam location without the use of additional components dedicated to determining beam location. The 2D micro actuator is used to stabilize the positioning function of the spot in the scene. The micro actuator is a 1D micro actuator suspended within a second framework by two torsion bars and two pairs of orthogonal additional electrodes. The image is scanned, a precise rectangle of the character sensing field is generated and the image is created by keeping a substantially constant pitch.

The invention provides balanced valve which comprises a main valve body (1) and a main valve core (4), wherein the main valve body (1) is provided with a positive oil outlet (A) and a reverse oil outlet (B); the main valve core (4) comprises a first acting surface (A1) and a second acting surface (A2) which are opposite to each other; the first acting surface is exposed in a first acting cavity (3) communicated with the reverse oil outlet; the second acting surface is exposed in a second acting cavity (17) communicated with the reverse oil outlet through a dumping groove (5); and the balanced valve further comprises a guiding control module which enables the second acting cavity to be selectively communicated with an oil draining port through a guiding control oil port (X). In addition, the invention also provides a hydraulic cylinder expansion control loop and a hydraulic crane. Due to the guiding control method, a large control ratio can be obtained through controlling the size of a guiding piston rod, the descending speed limitation control of the balanced valve is more sensitive, the influence of the load pressure on the openness of the main valve core is slight, frequent shaking can not be generated, the work stability is good, and the energy-saving effect is excellent.

The invention discloses a high-damping Mg-Zn-Y alloy containing rare-earth yttrium and a manufacturing method thereof. The magnesium alloy is composed of the following components in percentage by weight: 4.0-4.8% of Y, 6.6-8.9% of Zn, and the balance of magnesium and inevitable impurities. By designing the Zn and Y contents according to the synthesis components, the alloy is mainly a two-phase alloy composed of a magnesium phase and a long-period phase, wherein the long-period phase is an effective strengthening phase in the magnesium alloy and is beneficial to the damping capacity of the alloy. The alloy composition control and smelting techniques are adopted to control the grain size and long-period phase (LPSO) distribution in the alloy, thereby greatly enhancing the damping capacity of the alloy, ensuring the alloy strength and implementing the balanced optimization of damping and mechanical properties of the magnesium alloy. The technique is simple and easy to operate, has the advantages of high transferability and lower cost, and can be used for aerospace, track traffic and textile technology to achieve the effects of damping and noise reduction.

A CMOS current mirror is provided that includes a current input, an input transistor, whose conductivity path is located between the current input and a reference potential terminal, a current output, an output transistor, whose conductivity path is connected to the reference potential terminal and which supplies the current output with an output current, a gate node common for both transistors, and a supply potential terminal. The current mirror further includes a first additional transistor, whose conductivity path is located between the supply potential terminal and the gate node and whose gate terminal is connected to the current input, and a second additional transistor, whose conductivity path is located between the gate node and the reference potential terminal and whose gate terminal is connected to the gate node.

A functional element includes: a substrate; a movable body that includes a movable electrode portion; a support portion that supports the movable body; a first fixed electrode portion that is disposed on the substrate and a portion of which faces a first portion as one of portions of the movable body; a second fixed electrode portion that is disposed on the substrate and a portion of which faces a second portion as the other portion of the movable body; and a third fixed electrode portion that is disposed on the substrate and a portion of which faces the first portion. An opening that faces a region of the substrate between the first fixed electrode portion and the third fixed electrode portion is provided in the movable body, and the width of the opening is equal to or more than the width of the region.

The invention discloses a lock bead type vibration isolation bumper without harmonic peaks in three directions. The lock bead type vibration isolation bumper without the harmonic peaks in the three directions comprises an outer shell, a top cap, a spring nut, a vibration isolation spring and a ball locking-up mechanism. The lock bead type vibration isolation bumper without the harmonic peaks in the three directions adopts the ball locking-up mechanism, is matched with a locking force adjusting component, an equilibrium position adjusting component and a buffering component, and achieves the purpose of buffering in the three directions of a vibration isolator, vibration isolation without harmonic peaks in the three directions, adjustment of locking force, and meeting different nominal loads. Due to the fact that rolling friction is adopted to isolate vibration, the damping coefficient of the vibration isolator is reduced, and the abrasion in use is reduced. The vibration isolator of the lock bead type vibration isolation bumper without the harmonic peaks in the three directions is enabled to have the advantages of being long in service life, abrasion-resistant, and stable in performance, have high-efficient and high-frequent vibration isolation capability and the like.

A micromechanical acoustic sensor element, which has at least one diaphragm and at least one fixed counter element, the diaphragm being situated in a cavity between a substrate and the counter element and acting as movable electrode of a capacitor system, the counter element acting as first fixed counter electrode of this capacitor system, and at least one through hole being formed in the substrate for the application of sound pressure to the diaphragm. For fixation and strengthening purposes, the counter element is connected to the substrate via at least one support element. The support element is situated in the region of the cavity, and an opening is formed in the diaphragm for the support element.

A method and structure for fabricating an inertial sensing device using tilt conversion to sense a force in the out-of-plane direction. The method can include forming anchor structure(s) coupled to portions of a surface region of a substrate member. Also, the method can include forming flexible anchor members coupled to portions of the anchor structures and frame structures, which can be formed overlying the substrate. The method can also include forming flexible frame members coupled to portions of the frame structures and movable structures, which can also be formed overlying the substrate. Forming the movable structures can include forming peripheral and central movable structures, which can be coupled to flexible structure members. Peripheral movable structures having flexible tilting members can convert a pure tilting out-of-plane motion to a pure translational out-of-plane motion. The forming of these elements can include performing an etching process on a single silicon material.

The present invention discloses hyperelastic silica gel vibrating diaphragm materials. The hyperelastic silica gel vibrating diaphragm materials are made of silicone rubber and other auxiliary materials for mixing, upper and lower isolation membranes form a sandwich structure, a sandwich layer formed through hot press molding is the silica gel vibrating diaphragm materials through the hot press molding. The hyperelastic silica gel vibrating diaphragm materials are used for vibrating diaphragms of a loudspeaker and a receiver, are low in elasticity modulus and good in damping effect, and the made loudspeaker product is lower in the resonant frequency F0 compared to a loudspeaker made of other traditional materials, is better in the low-frequency distortion rate, and is lower than 10%.

A hydraulic cylinder unit is provided with a rod seal and/or piston seal which has a surface that deviates from the vertical circular cylindrical surface of the piston head throughhole through which the piston rod passes or the vertical circular cylindrical surface of the cylinder interior while forming respective converging gaps with regard to the rod surface and the interior surface of the cylinder, respectively.

The invention concerns a device for a vehicle, for height adjustment of a vehicle superstructure, which at one end has a first means for pivoting on a sprung mass (2) of the vehicle and at the other end a second means for pivoting on an unsprung mass (3) of the vehicle, a vibration damper (4) damping a relative movement of the sprung mass and unsprung masses (2, 3), and a self-pumping air spring (5) which supports the sprung and unsprung masses (2, 3) against each other in a sprung fashion. The vibration damper (4) according to the invention has a damping characteristic which is adjustable during operation, preferably steplessly adjustable. The invention also concerns a method for height adjustment of a vehicle superstructure by means of such a device.