The 1-DOF pad has two sectioned electrodes connected to independent voltage sources, and sensing signal is alternately applied to each pad for multiple sensing.
In DPA, double voltage pulses of different amplitudes were alternately applied to the interface to follow the concentrations of both the Keggin and the lacunary anions.
For transmittance measurement, voltages of +2.5 and −2.5 V were alternately applied to the TiO2-modified FTO electrodes for 20 s. Figure 4 shows the transmittance variation over time for modified devices prepared with TiO2 nanoparticles of different sizes.
Position and force estimation for multiple pads are realized by time division; high-frequency sensing signal is alternately applied to each pad, one by one, within a short switching period.
In type a, the field was applied continuously throughout the tensile test; in type b, the field was alternately applied and removed during the course of the tensile test.
Additional mixing is performed by moving the composition of the sample and reagents from one mixing chamber to the other through a tortuous path by compressing and releasing a polymer bellows in order to alternately apply pressure and vacuum to the sample.
Alternately, apply hair glue.
Alternately, apply a pet stain remover to the affected area.
Alternately, apply a black plastic covering to heat the soil.
Alternately, apply raw potato slices to skin and leave for 15 minutes.
