Apparatus for measuring slope change amount of structure and method for measuring slope change amount of structure using same

An apparatus for measuring a slope change amount of a structure, the apparatus comprising:

• a bottom body (100) formed in a spherical surface having a predetermined radius of curvature;
• a ball (200) installed on an upper surface of the bottom body (100) and moving due to a gravitational force;
• and
• a camera (300) for imaging the bottom body (100) on which the ball (200) is located, the apparatus further including:
• a housing (500) in which an internal space (510) is formed that accommodates the bottom body (100), the ball (200), and the camera (300);
• and
• a ball storing unit (520) for limiting a behavior of the ball (200) in the internal space (510), wherein:
• the bottom body (100) is located on a bottom surface of the internal space (510);
• the camera (300) is located on an upper surface of the internal space (510);
• and
• the ball storing unit (520) is a storage barrel (522) that shields the ball (200) from the camera (300), the bottom surface and the upper surface,
• wherein:
• the storage barrel (522) is configured to immobilize the ball (200) during transport or storage of the apparatus, and
• the storage barrel (522) is configured to release the ball (200) to freefall to the bottom surface during operation of the apparatus.