Tape burnish with monitoring device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 18, 2001
Grant Date -
N/A
app pub date -
Aug 23, 1999
filing date -
Aug 23, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A monitoring device is used to monitor the performance of a burnishing apparatus that uses a burnishing tape. The monitoring device monitors the contact between the burnishing tape and the disk. The monitoring device may include an acoustic emission sensor, e.g., a piezo-electric transducer, that is mounted on the elements that press the burnishing tape into contact with the disk. Elastic waves that are produced by the contact between the burnishing tape and the disk propagate through the pressure applying element, received by the sensor and are converted into electric signals. The electric signals from the sensor are converted into amplitude signals in the time domain and/or signals in the frequency domain. Alternatively, the monitoring device may measure the elastic waves propagating through the disk, the tension on the burnishing tape, and/or the frictional force between the burnishing tape and the disk.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully