| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure transmission device capable of ensuring suppression of generation of air bubbles in a pressure introduction path, and thereby maintaining pressure transmission characteristics for a long period of time.SOLUTION: A pressure transmission device 1 includes: tubular pressure introduction paths 11 and 11'; an encapsulated liquid L filled in the pressure introduction paths 11 and 11'; pressure-reception diaphragms 13 and 13' provided in a state of closing one of openings of the pressure introduction path 11 or 11', and receiving pressures of measurement fluids Fh and Fl, respectively; a pressure sensor 15 provided at the other opening of each of the pressure introduction paths 11 and 11' in a state of being exposed to the encapsulated liquid L; and a hydrogen-transmission prevention layer 21 provided in each of the pressure-reception diaphragms 13 and 13'. The pressure transmission device 1 further includes a hydrogen storage material provided in each of the pressure introduction paths 11 and 11'. |
