| 摘要 |
The present invention relates to an arrangement for measuring a delivery volume and/or a delivery rate, comprising an intermittently operating pump (1); at least one outlet line (3) and/or an inlet line (2, 2-1, 2-2); and a passive valve (5, 5-1, 5-2) which is arranged in the outlet line (3) or the inlet line (2, 2-1, 2-2) and which has a valve seat (15-1, 15-2) and a valve head (16-1, 16-2), the valve (5, 5-1, 5-2), in a first position of the valve head (16-1, 16-2), being closed and the valve (5, 5-1, 5-2), in a second position of the valve head (16-1, 16-2), being open. The arrangement comprises a sensor (8, 8-1, 8-2) with which values can be measured indicating whether the valve head (16-1, 16-2) is in the first or the second position; and an arithmetic unit (9) which is coupled to the sensor (8, 8-1, 8-2) and with which the delivery volume of the pump (1) and/or the delivery rate of the pump (1) can be calculated based on the values measured by the sensor (8, 8-1, 8-2). The invention further relates to a dispensing system for a crop protection product, comprising said arrangement and to a method for measuring a volume displaced by and/or a delivery rate of an intermittently operating pump, which method can be carried out by the arrangement. |
