摘要:
A piezo in-tongue microactuator includes a suspension assembly with a flexure tongue. The tongue has two slots that accept piezo actuators. The tongue also has multiple hinge flexible elements that translate the extension and/or contraction of the piezo actuators into rotary motion of the recording head. This rotary motion is then used to precisely position the recording element over the desired track on the hard disk drive and permits higher track density to be achieved.
摘要:
Devices for reading or writing electromagnetic information include a wafer substrate piece disposed between an electromagnetic transducer and an electrostrictive or piezoelectric actuator. The substrate piece is shaped as a rigid body adjoining the transducer and as a flexible element connecting the body and the actuator. To fabricate, at least one electrostrictive layer and many transducers are formed on opposite sides of a wafer that is then cut into rows containing plural transducers. The rows are processed from directions generally normal to the wafer surface upon which the transducers were formed, by removing material to form a head, flexures and a media-facing surface on the head. Conductive leads are formed on a back surface of flexures connecting the transducer with drive electronics. The flexures are aligned with forces arising from interaction with the media surface and from seeking various tracks, reducing torque and dynamic instabilities and increasing actuator access time.
摘要:
A mirror mounting assembly for mounting a mirror on a vehicle bulkhead. The assembly includes a mirror element and a main support arm having a first end and a second end. The mirror element is connected to the first end of the main support arm. The second end of the main support arm is mountable to the vehicle. A pair of brackets are configured to conform to an engine bay side wall of the vehicle. Each bracket has a center portion and two laterally extending flanges that extend at an angle from the center portion in opposite directions. One of the flanges of each bracket is connectable to the bulkhead of the vehicle in the engine bay. A first additional support arm has a first end connected to a first one of the brackets and a second end connected to the main support arm. A second additional support arm has a first end connected to the main support arm and a second end connectable to the vehicle. Finally, a third additional support arm has a first end connected to the main support arm and a second end connectable to the vehicle.
摘要:
A head positioning assembly having a first carriage assembly, a second carriage assembly, and an actuator. The second carriage assembly has a head and is coupled to the first carriage assembly by a first flexible member. The first and second carriage assemblies may be actuated to position the head when sufficient force is provided by the actuator.
摘要:
Devices for reading or writing electromagnetic information include a wafer substrate piece disposed between an electromagnetic transducer and an electrostrictive or piezoelectric actuator. The substrate piece is shaped as a rigid body adjoining the transducer and as a flexible element connecting the body and the actuator. To fabricate, at least one electrostrictive layer and many transducers are formed on opposite sides of a wafer that is then cut into rows containing plural transducers. The rows are processed from directions generally normal to the wafer surface upon which the transducers were formed, by removing material to form a head, flexures and a media-facing surface on the head. Conductive leads are formed on a back surface of flexures connecting the transducer with drive electronics. The flexures are aligned with forces arising from interaction with the media surface and from seeking various tracks, reducing torque and dynamic instabilities and increasing actuator access time.
摘要:
Provided are a head stack assembly (HSA) with reduced off-track, a hard disk drive including the HSA, and a method of reducing the off-track of the hard disk drive. The HSA includes a swing arm rotatably mounted on a base member of a hard disk drive (HDD); a connecting plate coupled to a front edge of the swing arm; a suspension coupled to the connecting plate to vibrate finely; a pair of hinges disposed on both sides of a center line of the suspension to connect the connecting plate to the suspension; a piezoelectric material layer including a piezoelectric material which is disposed on only one hinge of the pair of hinges, wherein the hinge is closer to a center of a disk in the HDD than the other is; and a head slider that is a recording or reproducing medium of data mounted on the front edge of the suspension.
摘要:
A micro-actuator for use with an HGA and/or disk drive device (e.g., a small platform disk drive device) with the micro-actuator having a reduced mass suitable for improving shock performance, and/or methods of making the same are provided. In certain example embodiments, the micro-actuator may comprise a substantially U-shaped frame including a cavity capable of receiving a slider, with the frame including two side arms and a bottom support arm at least partially defining the cavity. The bottom support arm may have a reduced mass capable of providing improved shock performance and capable of conveying a high resonance frequency response at a low gain. The bottom support arm may be, for example, substantially rectangle shaped, substantially I-shaped, toothed, etc. Also, the bottom support arm may be less thick than the side arms.
摘要:
A high stroke sensitivity microactuated disk drive suspension includes a microactuator, a laminate of first and second outer layers and a plastic inner layer that define a base portion, a spring portion and a beam portion. The base portion has proximate and distal regions coupled by a segment of an outer layer and fixed to the microactuator for relative shifting of the beam portion to the base portion. The segment has a part that is locally arcuate and readily bendable during said shifting for low resistance to shifting giving the suspension high stroke sensitivity.
摘要:
A micro-electromechanical signal transmission line is made from an electrically conductive material. It has a first distal end and a second distal end. The second distal end is free to move with respect to said first distal end. There exists an unsupported region between the first distal end and the second distal end. The unsupported region is juxtaposed at a controlled distance from at least one grounded conductive surface.
摘要:
A PZT element of the present invention includes a laminated structure which is laminated with electrode layer and PZT layer alternatively to define a thickness direction; wherein each PZT layer is sandwiched between two adjacent electrode layers; and at least one support element provided on a side portion of the laminated structure and substantially extending along a longitudinal direction thereof; wherein the PZT element is bent at least towards a latitudinal direction thereof when being applied an electrical voltage thereon through the electrode layers. The invention also discloses a method of manufacturing the PZT element, a HGA and disk drive unit with the same.