| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive pressure measurement device improved in corrosion resistance. SOLUTION: This pressure measurement device is provided with a first projection with one surface in contact with a measurement device body, a second projection with one surface in contact with the other surface of the first projection, and a seal diaphragm formed on the top face of the second projection. The pressure measurement device is characterized by comprising: a ring having one surface in contact with the measurement device body and formed of a corrosion-resistant material with the inside surface fitted with the first projection; a wetted diaphragm having a peripheral edge part of one surface fixed to the other surface of the ring, constituting a wetted chamber along with the seal diaphragm, the second projection and the ring, and formed of a corrosion-resistant material; an enclosed liquid enclosed in the wetted chamber; and a nipple having one surface fixed to the peripheral edge part of the other surface of the wetted diaphragm and formed of a corrosion-resistant material.
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