| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure transmission device designed to reliably suppress the generation of hydrocarbon bubbles and hydrogen bubbles and maintain a measurement error in a good condition for a long period, extending a useful life.SOLUTION: The pressure transmission device comprises: pressure-receiving diaphragms 5A and 5B with which measurement fluids come in contact; a sealing liquid 7 which is in contact with the pressure-receiving diaphragms 5A and 5B at the side opposite the side with which measurement fluids come in contact, and which transmits pressures received by the pressure-receiving diaphragms 5A and 5B from measurement fluids to a sensor 11 placed at a position apart from the pressure-receiving diaphragms 5A and 5B; a pressure guiding path 6 filled with the sealing liquid 7 and connecting the pressure-receiving diaphragms 5A and 5B and the sensor 11; and an output circuit 12 for measuring the absolute pressures of measurement fluids or a differential pressure between the measurement fluids on the basis of the pressures received by the sensor 11 and outputting the measured pressure. The pressure guiding path 6 has therein a hydrocarbon absorbing material 16 that absorbs hydrocarbon and a hydrogen absorbing storage material 18 absorbing and storing hydrogen.SELECTED DRAWING: Figure 1 |
