Gyroscope and angle measurement method

The present invention reduces measurement time. A gyroscope according to the present invention comprises a planar ion trap unit, a microwave irradiation unit, a laser irradiation unit, and a measurement unit. The planar ion trap unit has two rf electrodes and two DC electrode rows and forms ion traps for capturing single ions on a substrate having a z direction normal to the surface thereof. The rf electrodes are disposed on the substrate along the x direction at a prescribed interval. The DC electrode rows are disposed on the substrate along the x direction so as to sandwich the two rf electrodes. The DC electrode rows have at least five DC electrodes in the x direction. The trapped ions are spaced so as not to interfere with each other. The microwave irradiation unit irradiates π/2 microwave pulses onto the ions. The laser irradiation unit changes the amount of movement of the ions in the x direction. The measurement unit observes the internal states of the ions and measures an angle.