Patent ID: 6378368
Filing Date: 2002-04-30
Classification: G01C

Abstract:
An oscillation gyroscope comprising:a substrate (4) made of an elastic metal and having a substantially rectangular shape; the substrate (4) having first to fourth side surfaces arranged in a circumferential direction, wherein the first side surface (5) and the third side surface, and the second side surface (6) and the fourth side surface are located on opposite sides; the substrate (4) having a fixed end for fixing the oscillation gyroscope, and a free end located on an opposite side of the fixed end; the substrate (4) having a first opening (7) extending from the first side surface (5) to the third side surface at the fixed end; a first parallel plate portion (2) located on both sides of the first opening (7) and having a pair of side plates (8, 9) including the second and fourth side surfaces; the substrate (4) having a second opening (10) extending from the second side surface (6) to the fourth side surface at the free end; a second parallel plate portion (3) located on both sides of the second opening (10) and having a pair of side plates (11, 12) including the first and third side surfaces; a titanium base surface (13) formed respectively on the second and fourth side surfaces of the first parallel plate portion and the first and third side surfaces of the second parallel plate portion (3); a PZT thin film (14) formed on each base surface (13); an electrode (15, 16) formed on each PZT thin film (14); and a connecting pad (15b, 16b) electrically connected to any one of the electrodes (15, 16) of the PZT thin films (14).