Measuring instrument using centrifugal force

Abstract

Both application of centrifugal force to a biosensor and electrical connection with an electrode of the biosensor can be achieved with a simple structure. The electrode of the biosensor and a measuring part are connected without aligning a rotational position of the rotary table. The centrifugal measuring apparatusis provided with a rotary tablethat is driven by a motor, a retainerto hold a biosensor accommodating a sample inside on the rotary table, an urged contact partthat establishes electrical connection with the electrode of the biosensor in such a manner as being elastically biased to abut against the electrode, a measuring partthat measures a signal from the electrode of the biosensor, and a connector partthat selectively establishes electrical connection between the urged contact partand the measuring part. A contact having a circular shape is utilized to establish electrical connection between the rotary tableon which the biosensoris mounted and the fixture side, thereby enabling an electrical connection therebetween irrespective of a position of the biosensor on the rotary table, when the rotary table is stopped.