Apparat til måling af modifikationstiden for den fysiske tilstand af et fluidt medium

摘要

The invention relates to an apparatus, of the type comprising a vertical bucket which contains the fluid and the necessary reagents, and in which a ferromagnetic ball is placed, which is set in rotation by an external magnetic field. …This apparatus is characterised in that its bucket (1) has on its lower part an annular rolling path (4) for said ball (5), and in that it comprises a detection device (17) which emits an electric signal every time that this ball (5) passes in front of it and which is associated with a measuring unit (23) which determines the variations in the time interval between two consecutive passages of said ball (5). …Application in measurement of the coagulation time of blood plasma. ……