An implementation of Hough transform is described. The ATS includes an operator-panel portion and a pole-assembly portion, wherein the operator-panel portion comprises at least one solenoid and associated wiring. The sensor is used by connecting to a measurer for determining a capacitance on the electrodes, such that the capacitance directly reflects a volume occupied by the sample of the liquid. The capacitor lower electrode has a cylindrical shape and a certain height. Thus, the fuse unit can be programmed directly through the standard interface, and the repairing period and the cost will be reduced efficiently.