Patent ID: 9605989
Date: 2017-03-28
CPC Classifications: G01F,G01L

Claim:
1. A liquid pressure meter comprising: a cylindrical exterior portion having an internal space in which a liquid to be measured flows; and a pressure sensor provided inside the exterior portion and having a pressure sensitive surface; wherein the exterior portion has first, second, third and fourth lower holes that are arranged at a vertically lower side of the exterior portion relative to the pressure sensitive surface, and the exterior portion has fifth, sixth, seventh and eighth upper holes that are arranged on a vertically upper side of the exterior portion relative to the pressure sensitive surface, and the first through eighth holes connect an inside of the internal space to an exterior area outside of the internal space, and wherein a first of the first and fifth holes, a second pair of the second and sixth holes, a third pair of the third and seventh holes, and a fourth pair of the fourth and eighth holes are circumferentially spaced apart from each other by 90 degrees.