Patent ID: 8196467

Claim:
A method of detecting an angular velocity of a vibration angular velocity sensor that is configured to detect the angular velocity by vibrating a vibrating body in a first direction and detecting a displacement of the vibrating body in a second direction crossing the first direction, the method comprising: setting a difference in time between a feature point where a vibration monitoring signal Vm(t) sensing a displacement of the vibrating body in the first direction crosses a first reference level and a feature point where a sensing signal Vs(t) sensing a displacement of the vibrating body in the second direction crosses a second reference level as ΔT; setting a sensing direct-current voltage corresponding to an amplitude of the sensing signal Vs(t) as Vsd; setting a driving frequency as fd; and calculating the angular velocity V Ω from a formula of V Ω =Vsd ×sin(2· π·fd·ΔT ) (1).