ACCELERATION/DECELERATION DETECTION SYSTEM

An acceleration/deceleration detecting system includes an acceleration/deceleration detector (10) configured to be disposed in a measurement object and detect acceleration/deceleration of the measurement object, an acceleration/deceleration device (20) configured to accelerate or decelerate the measurement object, and a calculation device (30) configured to determine that a detection value of the acceleration/deceleration detector (10) is an offset error or a detection error of the acceleration/deceleration detector (10), when an actual acceleration/deceleration direction of the measurement object is different from an acceleration/deceleration direction shown by a detection value of the acceleration/deceleration detector (10) in a state that the measurement object is accelerated or decelerated by the acceleration/deceleration device (20).