| 摘要 |
An automatic, ultrasonic system for controlling the filling of different sizes of beverage containers 14, 16 which may or may not contain various quantities of ice. The system includes a transducer assembly 20 and a control module 26, both preferably connected to a beverage dispenser valve assembly 12. The transducer assembly includes a pair of piezo-electric crystals for separately transmitting and receiving ultrasonic wave energy from the grate 18, the cup lip, the top of any ice in the cup, and the rising liquid level. The control module includes a microcomputer and associated circuitry. <IMAGE> |
