Patent ID: 6561025
Filing Date: 2003-05-13
Classification: G01N

Abstract:
A specific gravity measuring device comprising:a liquid bath filled with a liquid; a first measuring portion receiving and supporting said liquid bath; a measuring object receptacle member arranged in said liquid bath in a condition dipped in said liquid; a second measuring portion supporting said measuring object receptacle member in non-contact condition relative to said liquid bath; an arithmetic unit deriving a specific gravity value on the basis of measured values of said first and second measuring portions; and a display unit for displaying the specific gravity value derived by said arithmetic unit; said measuring object being mounted on said measuring object receptacle member sinking in the liquid within said liquid bath in a condition sinking in the liquid; said first measuring portion measuring increase of weight associating with dipping of said measuring object in the liquid by said first measuring portion, as buoyancy; said second measuring portion acting simultaneously with said first measuring portion and measuring a weight of said measuring object in the liquid by said second measuring portion; said arithmetic unit deriving said specific gravity value from a measured value of the buoyancy and the weight in liquid for displaying on said display unit.