| 摘要 |
<p>Automatic reagent dispenser and sample mixer For precise dilution of blood samples with one or more reagents, each is contained in cylinder and piston dispenser (positive displacement pump) driven by a lead screw and drive nut type, linear actuator. The motor drives for these are stepping motors supplied by pulse counters each of which is fed from a central pulse generator via a control unit for timing the operations of the individual pump actuators.</p> |
