Patent ID: 6100094
Filing Date: 2000-08-08
Classification: G01F,G01N,Y10T

Abstract:
A method for sucking/determining the level of a liquid contained in a vessel by means of a nozzle, comprising the steps of:positioning a light receiver inside the nozzle; andirradiating light from a light source located at the nozzle to a liquid at or near an opening located at a lower end of a disposable tip or a tip of a cleaning system attached to the lower end of said nozzle;receiving the light irradiation proceeding from the liquid at or near an opening located at the lower end of the disposable tip or the tip of a cleaning system through a space for passing and storing the liquid and being defined by said disposable tip or the tip of the cleaning system and the lower end of said nozzle and entering into the lower end of said nozzle facing to said space, and detecting fluctuation of said received light irradiation.