摘要 |
PURPOSE:To lessen static pressure span errors, temperature span errors, and fastening span errors, by a method wherein the radial strain of a housing is absorbed by a cylinder part provided at the end of bellows. CONSTITUTION:High measuring pressure is introduced into a measuring room 61 through an inlet port 611, and low measuring pressure is introduced into a measuring room 71 through an inlet port 711. The pressure introduced is transmitted to sealed liquid 4 and 5 through seal diaphragms 22 and 23. The pressure is then converted into the force at both inside and outside of a bellows 11. A differential transformer consisting of a movable piece 12 and a coil 13 detects the migration of the movable piece mounted at the top of the bellows 11. |