| 摘要 |
The invention relates to a dosing system to dispense a predetermined quantity of a fluid medium which comprises a digital signal processor control having an interface to emit a start signal and a stop signal and an interface to measure a sensor signal. A dispenser is provided that is triggered by the start signal and the stop signal and, in the interval between the two signals, dispenses a specific quantity of fluid, as well as a sensor unit which, triggered by the start signal, continuously measures the flow rate of the fluid fed to the dispenser and emits a sensor signal as a function of this flow rate. The digital signal processor control measures the sensor signal, determines the quantity of fluid dispensed by the dispenser from this signal and sends a stop signal to the dispenser when the quantity of fluid dispensed by the dispenser corresponds to the predetermined quantity of fluid. A procedure for the dosage of a predetermined quantity of a fluid medium is described in which the quantity dispensed by a dispenser is continuously measured by the digital signal processor control during the dosing process with the aid of a flow rate sensor, the dosing process not being terminated until the predetermined amount of fluid has been delivered.
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