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US 10,612,365 B2Granted
Pressure sensor capsule
AssigneeRosemount Inc.
InventorsDavid Matthew Strei, David Alexander Andrew, Nicholas John Haywood
Life of this patent
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Abstract
A pressure sensor capsule includes a capsule body, an isolator, a pressure sensor, and a fluid fill pathway. The capsule body defines a process chamber. The isolator is supported by the capsule body and is exposed to the process chamber. The pressure sensor produces a sensor output that is indicative of a pressure within an interior chamber, which is isolated from the process chamber by the isolator. The fluid fill pathway extends from the process chamber to the interior chamber.
Claims20
A pressure sensor capsule comprising:
- a capsule body defining a process chamber;
- an isolator supported by the capsule body and exposed to the process chamber and a first pressure within the process chamber;
- a pressure sensor having a sensor output indicative of a second pressure within an interior chamber, which is isolated from the process chamber by the isolator, wherein the first pressure is applied to the interior chamber through the isolator to generate the second pressure such that the second pressure is related to the first pressure;
- and
- a fluid fill pathway extending from the process chamber to the interior chamber.
2 more elements
A method comprising:
- providing a pressure sensor capsule comprising:
- a capsule body defining a process chamber;
- an isolator supported by the capsule body and exposed to the process chamber and a first pressure within the process chamber;
- a pressure sensor having a sensor output indicative of a second pressure within an interior chamber, which is isolated from the process chamber by the isolator, wherein the first pressure is applied to the interior chamber through the isolator to generate the second chamber such that the second pressure is related to the first pressure;
- and
- a fluid fill pathway extending from the process chamber to the interior chamber, filling the interior chamber with an isolation fluid through the fluid fill pathway;
- and
- sealing the fluid fill pathway.
5 more elements
A method comprising:
- providing a pressure sensor capsule comprising:
- a capsule body defining a process chamber;
- an isolator supported by the capsule body and exposed to the process chamber;
- a pressure sensor having a sensor output indicative of a pressure within an interior chamber, which is isolated from the process chamber by the isolator;
- and
- a fluid fill pathway extending from the process chamber to the interior chamber, filling the interior chamber with an isolation fluid through the fluid fill pathway;
- sealing the fluid fill pathway;
- positioning the sensor capsule in a wellbore;
- exposing the process chamber to a pressure within the wellbore;
- sensing a pressure within the interior chamber, which is indicative of the pressure within the wellbore, using the pressure sensor;
- and
- generating the sensor output indicative of the sensed pressure.
9 more elements
Dependencies are inferred from the claim text.