| 摘要 |
There is provided a flow sensor system for sensing fluid flow indicative of a puff in an aerosol generating system. The sensor system includes a sensing circuit comprising a sensing resistor and a voltage output. The sensing resistor is arranged to detect fluid flow based on a change in resistance. The sensing circuit is arranged such that the change in resistance of the sensing resistor causes a change in the voltage output. The sensor system also includes a signal generator for supplying a pulsed driving signal to the sensing circuit. The sensor system is arranged to operate in a first mode in which the pulsed driving signal has a first frequency, and a second mode in which the pulsed driving signal has a second frequency, greater than the first frequency. |
