Liquid viscosity measuring device

Details Liquid viscosity measuring device Liquid viscosity measuring device

G - Physics

01

N

G01N 11/08 (2006.01) G01N 33/487 (2006.01) G01N 35/10 (2006.01) G01N 35/06 (1990.01)

Patent

CA 2121500

(Abstract) A viscosity measurement is carried out simultaneously during aspiration of red blood cell component in an blood sample pipetting apparatus. In a red blood cell pipetting process. a control unit 84 causes a piston 76 to be pulled downwardly so as to produce a predetermined initial aspiration pressure. A pressure sensor 54 monitors an inner pressure of an air tube 44. A viscosity measuring unit 86 measures a time required from a point of time when the initial aspiration pressure is produced, to a point of time when the pressure reaches a predetermined pressure value .beta., and the unit 86 obtains the viscosity of the red blood cell component by comparing the required time with a table 88. The table 88 stores data corresponding to the relationship between the required time and the viscosity, which is approximately proportional. 13

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