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Table 1 The experimentally-measured parameters of the three low-pass filter chips

From: An electrically-controlled programmable microfluidic concentration waveform generator

Filter Chip

Designed Diameter D0 (mm)

Experimental Time Constant   τ (sec)

Experimental Cut-off Frequencies fc (Hz)

Experimental Capacitance C (m3/Pa)

RC2

2

0.316

0.504

1.449 × 10−14

RC3

3

0.541

0.294

1.693 × 10−14

RC4

4

0.687

0.232

2.150 × 10−14