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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