Posts in Category EIS

Webinar Summary with Q&A: Fast Electrical Impedance Spectroscopy for Characterization and Counting

on 23.03.2021 at 09:57 by Meng on Blog of Meng Li
This blog summarizes the webinar that Fluigent and Zurich Instruments presented together our solution for fast electric impedance spectroscopy (EIS) in microfluidics. The system consisted of an HF2LI lock-in amplifier from Zurich Instruments and the LineUp series microfluidic flow controllers […]

Proximity sensors: inductive or capacitive? Using the MFIA to measure the sensitivity and response time of both sensing regimes

on 07.01.2021 at 17:36 by Meng on Blog of Meng Li
Introduction A proximity sensor is a sensor that detects nearby objects without physical contact [1]. They are commonly used, in applications ranging from production lines to modern mobile devices, mainly thanks to their non-contact configuration and the accompanying long lifetime. […]

Measuring Dielectric Properties of Materials with Varying Thickness

on 30.09.2020 at 08:52 by Meng on Blog of Meng Li
Introduction A dielectric is traditionally defined as an electrical insulator, with very poor conductivity at DC [1]. However, because of its polarizability, charges can be stored in a dielectric material, typically in the format of dipoles, in the low and […]

Humidity Sensors: Resistive or Capacitive? The MFIA can tell the Answer.

on 15.06.2020 at 15:31 by Meng on Blog of Meng Li
Introduction Humidity sensors (also known as hygrometers) are commonly used in applications ranging from everyday sensing to lab research [1]. They are typically placed in an enclosed chamber, such as a car or a glovebox, where they are used to […]

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