Liquid Mass Sensing Using Resonating Microplates under Harsh Drop and Spray Conditions

Figure 4

Measured data for liquid drop sensing: (a) frequency response around the 26 kHz resonance before (red circles) and after (black squares) water drip. (b) Temporal monitoring of the corresponding central peak frequency as a function of time during and after the water dripping on the microplate.

(a)

(b)