Apparatus and method for minimizing drift of a piezo-resistive pressure sensor due to progressive release of mechanical stress over time
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 12, 2013
Grant Date -
Sep 1, 2011
app pub date -
Feb 27, 2010
filing date -
Feb 27, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An absolute piezo-resistive pressure sensor system and method employing multiple pressure sensing elements operating simultaneously to detect pressure. Both pressure sensing elements being subject to a common reference pressure within a sealed cavity. The first pressure sensing element detecting an offset voltage resulting from the progressive release of mechanical stress at an assembly interface between the sensing element and a base plate on which the sensing elements are assembled. Electronic circuitry compensates the pressure measured by the second pressure sensing element based on the offset voltage detected by the first pressure sensing element.
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