Understanding Interdependencies between Mechanical Velocity and Electrical Voltage in Electromagnetic Micromixers

Noori Kim, Wei Xuan Chan, Sum Huan Ng, Yong Jin Yoon, Jont B. Allen

Research output: Contribution to journalArticlepeer-review


Micromixers are critical components in the lab-on-a-chip or micro total analysis systems technology found in micro-electro-mechanical systems. In general, the mixing performance of the micromixers is determined by characterising the mixing time of a system, for example the time or number of circulations and vibrations guided by tracers (i.e., fluorescent dyes). Our previous study showed that the mixing performance could be detected solely from the electrical measurement. In this paper, we employ electromagnetic micromixers to investigate the correlation between electrical and mechanical behaviours in the mixer system. This work contemplates the "anti-reciprocity" concept by providing a theoretical insight into the measurement of the mixer system; the work explains the data interdependence between the electrical point impedance (voltage per unit current) and the mechanical velocity. This study puts the electromagnetic micromixer theory on a firm theoretical and empirical basis.

Original languageEnglish (US)
Article number636
Issue number7
StatePublished - Jun 29 2020


  • Acoustic micromixers
  • Active micromixers
  • Anti-reciprocity
  • Electro-mechanical systems
  • Electromagnetic micromixers
  • Gyrator
  • Lectrical impedance
  • Mechanical velocity
  • Micromixers
  • Mixers
  • Voice-coil mixers

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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