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

Claim 12:
13. The gas densimeter according to claim 1, wherein the at least one reference bellows has:
a spring strength of 15 N/mm to 65 N/mm, and/or
an inner diameter of at least 5 mm, and/or
an outer diameter of 30 mm to 63 mm, and/or
a wall thickness of 0.1 mm to 0.4 mm, and/or
an outer rim with a radius of curvature of 2 to 4 mm, and/or
an inner rim with a radius of curvature of 0.5 mm to 1.5 mm, and/or
wherein the at least one reference bellows is designed as a double bellows, and an interspace in the double bellows is evacuated.