| 摘要 |
The preferred embodiment of the invention disclosed herein comprises a closed glass member including a hollow pressure-sensing portion and a hollow pressure indicating portion communicating with the pressure-sensing portion. At least one wall forming the pressure-sensing portion is deformable and the pressure-sensing portion is filled with an incompressible fluid. In use, the glass member is placed in a capsule including a medium which when pressurized deforms the deformable wall which, in turn, exerts force on the incompressible fluid causing it to flow in the pressure-indicating portion. The level of the incompressible fluid in the pressure-indicating portion is indicative of the pressure in the medium.
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