发明名称 DIFFERENTIAL PRESSURE MEASURING APPARATUS
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.
申请公布号 JPS5855834(A) 申请公布日期 1983.04.02
申请号 JP19810155944 申请日期 1981.09.30
申请人 YOKOGAWA DENKI SEISAKUSHO KK 发明人 NISHIHARA TADASHI
分类号 G01L9/10;G01L9/00;G01L13/02 主分类号 G01L9/10
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