| 摘要 |
PURPOSE:To provide measurability for the liquid quantity (volume) of a drop of a reagent, sample, etc., discharged out of a nozzle and measure the volume of each discharged drop accurately even in case drops are discharged continuously. CONSTITUTION:A light flux 9 is put incident so as to intersect a drop 8 discharged from a dispensating nozzle 1. Using a photo-sensor 13 receiving the light flux 9, the time in which the light flux generated during the drop 8 intersecting the light flux 9 is varying, is measured by a time measuring circuit 14, and the volume of the drop 8 discharged is determined on the basis of this time according to measurement. |
