| 摘要 |
The invention relates to a method in collection apparatus as well as the collection apparatus itself, comprising collection receptacles (2a, 2b, 2c), a drip nozzle (3), and means for bringing about a relative movement between the receptacles and the drip nozzle at predetermined times to collect the drops emitted by the drip nozzle, in the different receptacles. According to the invention the time between the drops is measured by means of a time measurement circuit (6), and the lower and the upper time limits for a time interval within which the next drop is expected, are calculated by means of a time limit calculating circuit (9). A blocking circuit (7) is adapted to compare the time measured after the latest drop with the calculated time limits, and to block said relative movement when the measured time lies between these time limits. The blocking circuit (7) is adapted to permit said relative movement when the expected drop has been emitted within the time limits. |
