Pressure dome for connecting a transducer with a sealed fluid system
AssigneeMemscap
InventorsManfred Adolfs, Raymond Glocker
Life of this patent
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Abstract
The invention relates to a pressure dome for connecting a transducer with a fluid system comprising an inlet channel and an outflow channel as well as a measuring chamber in which a fluid is able to circulate and which has a measuring membrane. To improve fluid circulation and simplify handling, the measuring chamber ceiling is configured in the shape of a calotte and the pressure dome is removably coupled to the transducer housing by means of a snap connection.
Claims15
A connecting element for connecting a transducer to a sealed fluid system, comprising at least one inlet channel, at least one outlet channel and a measuring chamber connected to said inlet channel and said outlet channel in such a way as to allow a flow to pass through said measuring chamber, the measuring chamber being formed in a housing and part of the wall of the measuring chamber being formed by a membrane which is significantly more compliant than the remaining part of the wall of the measuring chamber, wherein the measuring chamber has an inlet opening and an outlet opening respectively at the level of parts of the wall which are situated opposite one another and form an edge of the measuring chamber in that part of the wall opposite the membrane which forms a ceiling of the measuring chamber, and the ceiling is drawn-in in a central area of the measuring chamber, so that an annular-channel-shaped part of the measuring chamber with a greater distance between the membrane and the ceiling and a central area of the measuring chamber with a smaller distance between the ceiling and the membrane are obtained, and the wall of the measuring chamber is designed such that it is free from any edges with the exception of the inlet and outlet openings and the transition from the membrane to the remaining part of the wall.
Dependencies are inferred from the claim text.