Patent ID: 6675652
Filing Date: 2004-01-13
Classification: G01C

Abstract:
An angular velocity sensor comprising:(a) a tuning fork type resonator including a first resonating member and a second resonating member each having a short side and a long side, and a connecting member connecting a first end of each of said first resonating member and sid second resonating member; (b) a first base connected to said connecting member; (c) a holding plate to hold said first base; (d) a circuit board fixed onto said holding plate; (e) an elastic body for holding an end part of at least one selected from said holding plate and circuit board, said elastic body having a first side for receiving said end part and a second side provided with at least one groove, said groove extending parallel to said end part received by said first side of said elastic body; (f) a case housing said tuning fork type resonator, said first base, said holding plate, said circuit board and said elastic body and having an opening, and (g) a second base closing said opening of said case; wherein said tuning fork type resonator is disposed in such a way as each of said long side of said first resonating member and second resonating member is directed in parallel to said first base and in perpendicular to said second base; wherein said elastic body is located between an inner wall of said case and an end part of at least one of said holding plate and said circuit board, and at least one selected from said holding plate and circuit board is held by said case via an elastic pressure of said elastic body, and said case is closed by said second base.