Sensor and method for determining the pressure in a fluid
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 19, 2013
Grant Date -
Dec 23, 2010
app pub date -
Dec 18, 2008
filing date -
Feb 8, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure of a fluid is determined in a vacuum-tight welded housing containing a first membrane enclosing a part of a first inner volume and having a first contact area associated with a first temperature sensor and a heater. A second membrane opposite the first contact area also encloses part of the first inner volume and has a second contact area associated with a second temperature sensor. The first or second membrane is elastic around the contact area. The membranes hermetically seal a second inner volume at a reference pressure. The contact areas determine the mechanical and thermal contact due to the elasticity of one of the membranes when the first inner volume is connected to the fluid. When the volume is connected to the fluid F, the intensity and/or the time gradient of the heat transfer from the first to the second contact area is measured.
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