Piezoresistive position sensors embedded in disc drive microactu

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

360109, G11B 556

Patent

active

061634344

ABSTRACT:
A disc drive has a recording disc rotatable about an axis, a slider supporting a transducing head for transducing data with the disc and a dual-stage actuation assembly supporting the slider and including an actuator, a suspension having a flexure and a microactuator to position the transducing head adjacent a selected radial track of the disc. The microactuator includes a stator attached to the flexure and a rotor operatively attached to the slider, the rotor being movable with respect to the stator. A microactuator suspension operatively attaches the rotor and the stator. At least one sensor in the microactuator suspension is cooperable with a detection circuit to determine a relative position of the transducing head.

REFERENCES:
patent: 4605977 (1986-08-01), Matthews
patent: 4620251 (1986-10-01), Gitzendanner
patent: 4651242 (1987-03-01), Hirano et al.
patent: 4853810 (1989-08-01), Pohl et al.
patent: 4962391 (1990-10-01), Kitahara et al.
patent: 5021906 (1991-06-01), Chang et al.
patent: 5034828 (1991-07-01), Ananth et al.
patent: 5065268 (1991-11-01), Hagen
patent: 5072240 (1991-12-01), Miyazawa et al.
patent: 5079659 (1992-01-01), Hagen
patent: 5105408 (1992-04-01), Lee et al.
patent: 5189578 (1993-02-01), Mori et al.
patent: 5255016 (1993-10-01), Usui et al.
patent: 5276573 (1994-01-01), Harada et al.
patent: 5552809 (1996-09-01), Hosono et al.
patent: 5657188 (1997-08-01), Jurgenson et al.
patent: 5862015 (1999-01-01), Evans
"Silicon Micromachined Electromagnetic Microactuators for Rigid Disk Drives" by Tang et al, IEEE Transactions on Magnetics, vol. 31, No. 6, Nov. 1995.
"Magnetic Recording Head Positioning at Very High Track Densities Using a Microactuator-Based, Two-Stage Servo System" by Fan et al., IEEE Transactions on Industrial Electronics, vol. 42, No. 3, Jun. 1995.
"A Flexural Piggyback Milli-Actuator for Over 5 Gbit/in.sup.2 Density Magnetic Recording" by Koganezawa et al, IEEE Transactions on Magnetics, vol. 32, No. 5, Sep. 1996.
"Transverse Mode Electrostatic Microactuator for MEMS-Based HDD Slider" by Imamura et al, IEEE 1996.
"An Experiment for Head Positioning System Using Submicron Track-width GMR Head" by Yoshikawa et al., IEEE Transactions on Magnetics, vol. 32, No. 5, Sep. 1996.
"Micro Electrostatic Actuators in Dual-Stage Disk Drives with High Track Density" by Tang et al., IEEE Transactions on Magnetics, vol. 32, No. 5, Sep. 1996.
"Piezoelectric Microactuator Compensating for Off-Track Errors in Magnetic Disk Drives" by Imamura et al, Advance Information Storage Systems, vol. 5, pp. 119-125.
"A Dual-Stage Magnetic Disk Drive Actuator Using a Piezoelectric Device for a High Track Density" by Mori et al., IEEE Transactions on Magnetics, vol. 27, No. 6, Nov. 1991.
"Dynamic Loading Criteria for 3-1/2 Inch Inline HDD Using Multilayer Piezoelectric Load/Unload Mechanism" by Kajitani et al., IEEE Transactions on Magnetics, vol. 27, No. 6, Nov. 1991.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Piezoresistive position sensors embedded in disc drive microactu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piezoresistive position sensors embedded in disc drive microactu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoresistive position sensors embedded in disc drive microactu will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-275640

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.