APPARATUS HAVING OVAL BOB FOR MEASURING BUOYANCY

摘要

PURPOSE: An apparatus having an oval bob for measuring buoyancy is provided to accurately measure a buoyancy by visually discriminating the buoyancy force when measuring the buoyancy. CONSTITUTION: A weight(18) is attached to a lower portion of a buoyancy body(10). An oval bob(30) is inserted into the lower portion of the buoyancy portion(10). A water tank(20) which is filled with water is a transparent material for observing an inner portion. An oval bob inserting portion(14) is installed at a lower portion of the buoyancy portion(10) and is inserted into a center hold(32) of the oval bob(30). An upper side of a wire(16) is fixed to an upper portion of the medium barrel bob inserting portion(14) with a thread(17). The weight(18) is attached to a lower portion of the wire(16)