Patent ID: 8806938

Claim:
A specific gravity measuring apparatus comprising: a liquid bath filled with a liquid; a measured object receiving member which is supported within the liquid bath via a support means in a non-contact manner and into and out of which the liquid within the liquid bath can freely flow; an aerial mounting member which is supported by the support means and on which a measured object is placed in order to measure gravity thereof in the air; and a weighing apparatus receiving and supporting the measured object receiving member via the support means, the weighing apparatus being provided with a sensor converting a weight acted upon the measured object receiving member into an electrical signal and a measuring section measuring specific gravity of the measured object from an output of the sensor at a time when the measured object is placed on the aerial mounting member and an output of the sensor at a time when the measured object is submerged and placed on the measured object receiving member, wherein the aerial mounting member is provided in such a manner as to cover a part of an opening at an upper part of the liquid bath and leave the remainder open but not to fully cover the opening, and the measured object having been placed on the mounting member can be dropped onto the measured object receiving member directly.