| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact, easy-to-manufacture Bourdon tube pressure gauge capable of suppressing pressure pulsation. SOLUTION: The Bourdon tube pressure gauge incorporates a contraction unit 10 on the part of a pressure source of a pressure inlet path 2 of a tube support 4. The contraction unit 10 includes a metallic constricted tube body 21 having flat collapsed portions 21a with a minute through-hole h remaining in a pressure-contacting surface 21b of inner surfaces of the tube, solder 22 built up on the exterior of the flat collapsed portions 21a, and an embedded screw 30 having a through-hole 31 into which an end of the metallic constricted tube body 21 has been fit to be firmly fixed. COPYRIGHT: (C)2009,JPO&INPIT |
