Patent ID: 11867712
Assignee: WIKA ALEXANDER WIEGAND SE & CO. KG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 16:
17. A gas densimeter for monitoring a pressure or density of a gas in a gas chamber, the gas densimeter comprising:
a housing that comprises at least one first housing chamber, the at least one first housing chamber comprises a measuring chamber;
at least one first coupling via which the housing is connectable to the gas chamber;
at least one reference bellows being connected directly or indirectly at a first end section to a first inner wall section of the at least one first housing chamber or the measuring chamber;
at least one separator connected directly or indirectly to a second end section of the at least one reference bellows or is formed by the second end section;
at least one transmission element connected directly or indirectly to the at least one separator; and
at least one transmitting and/or monitoring unit operatively connected directly or indirectly to the at least one transmission element,
wherein the measuring chamber has a gas-permeable connection to the gas chamber via the at least one first coupling,
wherein the at least one reference bellows forms a reference chamber filled with a constant amount of a reference gas,
wherein the reference chamber is disposed at least partially within the at least one first housing chamber and is separated from the measuring chamber in a gas-impermeable manner,
wherein the housing comprises:
at least one second housing chamber; and
a connection opening in a partition wall between the at least one first housing chamber and the at least one second housing chamber,
wherein the at least one transmission element projects from the at least one first housing chamber through the connection opening into the at least one second housing chamber,
wherein the at least one first housing chamber and the at least one second housing chamber are sealed against one another, and
wherein the at least one transmission element has a cross-sectional area that is smaller than a cross-sectional area of the at least one reference bellows, and

wherein the housing is a multipart housing, wherein at least the at least one first housing chamber is disposed in a first housing part, wherein at least one further housing chamber is disposed in a second housing part, wherein the first and second housing parts are connected directly or indirectly to one another, and/or wherein the first and second housing parts are adapted to be rotated relative to one another about at least one axis of rotation.