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We present passive flow-rate regulators using parallel membrane valves rectifying dynamic inlet pressure. The parallel membrane valves in the passive flow-rate regulator are designed to deflect and adjust the flow resistance according to the inlet pressure, thus maintaining a constant flow-rate independent of the inlet pressure variation. The prototype was fabricated by PolyDiMethylSiloxane (PDMS)...
In this paper, we design, fabricate, and test a single-heater microinjector, whose ejected-droplet volume is adjusted by a digital combination of multiple current paths connected to a single microheater. The novel aspect of the present method includes using the single microheater having multiple current paths to achieve multilevel droplet volume adjustment. In the design process, we design four pairs...
We present the first proposal to detect both particle position and velocity based on the electrical measurement of particle transit time across uneven inter-gap electrodes. Compared to the previous methods, the present detector provides higher integrability for chip-based systems and achieves higher measurement stability robust to particle size variation. The position uncertainty of polystyrene particles...
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