| 摘要 |
A measuring system comprising a container for the gas, a Bourdon tube, and a capillary of no more than about 20 m which connects said container to one end of the Bourdon tube is filled with the gas to a superatmospheric pressure prevailing at the ambient temperature of at least about 5 bar. …<??>The system is hermetically sealed and the free end of the Bourdon tube (1 min ) is connected to a temperature indicator or recorder through a transmission mechanism (2) constituted by a multi-membered linkage including a lever bar (3), a draw link (4), and a rack bar (5) with a pinion (6), with adjustable angles alpha between the central draw link and said lever, and beta between said draw link and said rack bar. …<??>The combination of the Bourdon tube (1 min ), the transmission mechanism (2) and the temperature indicator (8) or recorder is housed in a cabinet. …<??>According to the invention, the method is characterized in that, for use in the measuring system, a Bourdon tube is chosen with a long overal spring excursion of at least 22 mm and an effective spring excursion of about 11 mm, and the non-linear indication occurring as the Bourdon tube is uncoiled is compensated for by adjusting angles alpha and beta . Preferably, with the effective spring excursion of the Bourdon tube of about 11 mm a spring excursion of about 40-22 mm is selected, and the transmission mechanism preferably has a factor of magnification of no more than about 1 : 8.5. |
