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US 8,011,250 B2Granted
Apparatus and method for controlling and monitoring the pressure in pressure line or pipes
AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsHoc Khiem Trieu, Peter Wiebe, Robert Klieber
Life of this patent
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Abstract
An apparatus including a chamber having a chamber opening, a plunger which is movable within the chamber so as to change a chamber volume, which is defined by the plunger and a chamber wall and which adjoins the chamber opening, includes a measurer for measuring a pressure within the chamber or for measuring a force F, F being the force which acts upon the plunger so as to change the chamber volume.
Claims10
A modular arrangement comprising:
- a syringe comprising:
- a chamber comprising at least one chamber opening;
- and
- a plunger which is movable within the chamber along a plunger axis so as to change a chamber volume which is defined by the plunger and a chamber wall, and
- which adjoins the chamber opening;
- a measurer configured to measure a force which acts upon the plunger so as to change the chamber volume;
- wherein
- the measurer comprises a stamp and a housing with the stamp being movable within the housing along a stamp axis so that a pressure within a pressure vessel defined by the housing and the stamp changes due to movement of the stamp, the measurer further comprising a sensor arranged within the pressure vessel, the sensor being configured to measure a pressure within the pressure vessel;
- and
- an adapter arranged to be fit to an end of the plunger facing away from the chamber volume and to be fit to an end of the stamp facing away from the pressure vessel so that the measurer is connectable with the syringe such that the stamp axis and the plunger axis are parallel or substantially parallel to each other and the pressure within the pressure vessel changes in accordance with a pressure within the chamber volume.
7 more elements
A method comprising:
- providing a syringe comprising:
- a chamber comprising at least one chamber opening;
- and
- a plunger which is movable within the chamber along a plunger axis so as to change a chamber volume which is defined by the plunger and a chamber wall, and
- which adjoins the at least one chamber opening;
- providing a measurer arranged to measure a force which acts upon the plunger so as to change the chamber volume, wherein the measurer comprises a stamp and a housing with the stamp being movable within the housing along a stamp axis so that a pressure within a pressure vessel defined by the housing and the stamp changes due to movement of the stamp;
- fitting an adapter to an end of the plunger facing away from the chamber volume and to an end of the stamp facing away from the pressure vessel so that the measurer is connected with the syringe such that the stamp axis and the plunger axis are parallel or substantially parallel to each other and the pressure within the pressure vessel changes in accordance with a pressure within the chamber volume;
- and
- measuring a pressure within the pressure vessel.
6 more elements
A modular arrangement comprising:
- a measurer arranged to measure a force which acts upon a plunger of a syringe, the measurer comprising a stamp and a housing with the stamp being movable within the housing along a stamp axis so that a pressure within a pressure vessel defined by the housing and the stamp changes due to movement of the stamp, the measurer further comprising a sensor arranged within the pressure vessel, the sensor being arranged to measure a pressure within the pressure vessel;
- and
- an adapter arranged to be fit to an end of the plunger of the syringe facing away from a chamber volume defined by the plunger and a chamber wall of a chamber of the syringe within which the plunger is movable along a plunger axis, and to be fit to an end of the stamp facing away from the pressure vessel so that the measurer is connectable with the syringe such that the stamp axis and the plunger axis of the syringe are parallel or substantially parallel to each other and the pressure within the pressure vessel changes in accordance with a pressure within the chamber volume.
Dependencies are inferred from the claim text.