Material stress monitor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 16, 1990
Grant Date -
N/A
app pub date -
May 3, 1989
filing date -
May 6, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sensor unit is disclosed for use in monitoring in situ changes in dynamic and static stress properties of any material to be monitored, such as monolithic concrete or underground rock structures. The sensor unit includes a hollow, waterproof tubular body to be inserted into a cylindrical borehole in the material to be monitored. A transducer is mounted within the body, which by means of strain gauges, provides an output signal responsive to deflection of the sidewall of the borehole. The transducer is coupled to the sidewall by means of pressure buttons. A monitor is also disclosed, which comprises the sensor unit, a data collection unit and a data analyzing unit. A method for sensing dynamic and static changes in material stresses is also disclosed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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