| 摘要 |
PROBLEM TO BE SOLVED: To obtain a pressure sensor that is suited for miniaturization and at the same time an easy adjustment of an initial position and can be handled easily. SOLUTION: A pressure-displacement conversion mechanism 27 for displacing a pressure detection rod 25 according to a fluid pressure is provided with bellows 23 that expands and contracts according to the pressure of fluid operating on a pressure reception surface 23a equipped in a pressure reception chamber 33 where fluid pressure is introduced, and a pressure detection rod 25 that advances and retreats according to the expansion and contraction of the bellows 23. A detection signal output means 29 for outputting an electrical signal according to the displacement of the pressure detection rod 25 is equipped with a core 45 that is fixed to the base end of the pressure detection rod 25 and a coil unit 47 where an output signal changes according to the displacement of the core 45. The initial position between the core 45 and the coil unit 47 is set by the adjustment of the amount of screwing of a flange lid 64 that supports the coil unit 47 and is movably connected to a housing body 63.
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