Dual magnetic field sensor unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 17, 2007
Grant Date -
May 18, 2006
app pub date -
Feb 11, 2005
filing date -
Nov 16, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present inventions relate to a method and apparatus for adding Automatic Meter Reading (AMR) capabilities to utility meters that generate a magnetic field comprising magnetic flux that varies proportionally with the rate of resource consumption. The apparatus comprises a dual magnetic field sensor unit for detecting variations in the magnetic flux density for the magnetic field. The sensor unit may be compact in size so that it can be positioned within a utility meter. The sensor unit may be operatively connected to a data-unit located outside the utility meter. The data unit may be further configured for storing processed or unprocessed sensor signals and is connected to a transmitter.To minimize power consumption, the magnetic field sensors may be configured to have sensor on times and sensor off times. The on/off state of the magnetic field sensors may be controlled by either a dedicated sensor controller or the data unit.
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