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

Claim 13:
14. 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 at least one first spring element is provided for the direct or indirect exertion of a force on the at least one separator, wherein the at least one first spring element is disposed within the at least one first housing chamber and/or within the reference chamber or within the measuring chamber and/or at least substantially parallel to the longitudinal axis of the at least one reference bellows, wherein a first end section of the at least one first spring element is in direct or indirect mechanical contact with the at least one separator and/or a second end section of the at least one first spring element is in direct or indirect mechanical contact with a third inner wall section of the at least one first housing chamber, and
the gas densimeter further comprising a second spring element, wherein the at least one first spring element and the second spring element indirectly or directly exert spring forces on the at least one separator, wherein the second spring element is disposed within the at least one first housing chamber and/or within the reference chamber or within the measuring chamber and/or substantially parallel to the longitudinal axis of the at least one reference bellows, wherein a first end section of the second spring element is in direct or indirect mechanical contact with the at least one separator, and/or wherein a second end section of the second spring element is in direct or indirect mechanical contact with a fourth inner wall section of the at least one first housing chamber.