Springback type angle displacement measurement device and measurement method thereof

The invention discloses a springback type angle displacement measurement device, and belongs to the field of aeronautical engineering test detection. The device is characterized by comprising an angle displacement detecting unit, a springback reset unit, a transmission connecting unit and an installation locating unit, wherein a thrust end of the springback reset unit is fixed at a bearing fixed end of the angle displacement detecting unit; the other thrust end is fixed at a rocker arm of the transmission connecting unit; a tail end of the rocker arm of the transmission connecting unit is fixed on a rotary shaft of the angle displacement detecting unit; an end of the other rocker arm is in contact with an upper surface of the installation locating unit; and the control surface drift angle is measured in a way that the transmission connecting unit follows deflection of the airplane control surface and drives the rotary shaft of the angle displacement detecting unit to deflect. The device has the characteristics of compact and simple structure, small space size, low cost, reliability in operation, high test precision, accordance with the actual motion situation of the airplane control surface, and convenience in installation, usage and adjustment, and is suitable for measurement of drift angles of various airplane control surfaces.