公开(公告)号：US4914868A

公开(公告)日：1990-04-10

申请号：US250685

申请日：1988-09-28

申请人： Mark A. Church ,  Annayya P. Deshpande ,  Alain M. Desouches ,  George S. Pal ,  Michael P. Salo ,  Muhammad I. Ullah

发明人： Mark A. Church ,  Annayya P. Deshpande ,  Alain M. Desouches ,  George S. Pal ,  Michael P. Salo ,  Muhammad I. Ullah

IPC分类号： B24B49/10 ,  B23Q17/22 ,  B24B37/04 ,  G11B5/39

CPC分类号： G11B5/3903 ,  B23Q17/22 ,  Y10T29/49036 ,  Y10T29/49048

摘要： A lapping control system for a row of thin film magnetic transducers formed on a substrate. Each of the magnetic transducers comprises a magnetoresistive (MR) element, and the row is supported on a holder which has an elongated H-shaped slot near one edge to form a beam member upon which the row is mounted. The beam member is capable of being deflected in a substantially quadratic curvature when subjected to pressure from a pressure transducer at the middle of the beam member. The resistance of each of the MR elements is measured during lapping, and a control signal is generated to control the pressure transducers to control lapping with proper BALANCE and BOW and to terminate lapping when the desired MR element height is reached.

公开(公告)号：US4760478A

公开(公告)日：1988-07-26

申请号：US883201

申请日：1986-07-08

申请人： George S. Pal ,  Charles G. Snyder

发明人： George S. Pal ,  Charles G. Snyder

IPC分类号： G11B5/48 ,  G11B21/16

CPC分类号： G11B5/4833

摘要： A magnetic head support arm for a disk file comprises a relatively rigid arm structure and a magnetic head suspension assembly fixed at one end to the head support arm having means on the other end to support a transducing head, and having a tapered elongated flat load beam connecting the ends. A means of damping the structure against vibrations comprises a layer of damping material fixed to the elongated flat load beam and a constraining member fixed in contact with the damping material so that the vibration energy is damped due to shear energy absorption in the layer of damping material.

摘要翻译： 用于盘片的磁头支撑臂包括相对刚性的臂结构和磁头悬挂组件，该磁头悬挂组件在一端固定到磁头支撑臂，该磁头支撑臂具有在另一端上的装置，以支撑换能头，并且具有锥形细长扁平负载梁 连接端 阻尼结构抵抗振动的手段包括固定到细长扁平负载梁上的阻尼材料层和与阻尼材料接触固定的约束构件，使得由于阻尼材料层中的剪切能量吸收而使振动能量衰减 。