| 摘要 |
<p>An apparatus for mixing a first liquid (22) with at least a second liquid (22) includes a tank (12) having a mixing chamber (12M) to which is connected a first (28A, 30A) and a second (28B, 30B) supply line from each of a first (22) and a second source (24) of liquid. A gross control valve (32, 36) disposed in each of the first supply lines (28A, 30A) and a fine control (34, 38) valve disposed in each of the second supply lines (28B, 30B). A noncontacting detector (44) measures the total volume of liquid present in the mixing chamber. A controller (48), operable in response to signals output from the detector (44) representative of the total volume within the mixing chamber (12M) as continuously measured by the detector (44), actuates in accordance with a predetermined sequence the gross (32, 36) and the fine (34, 38) control valves in the respective first and second supply lines from the first source and from the second source.</p> |
