Posts in Category MFIA

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

on January 7, 2021 at 5:36 pm by Meng
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. […]

Function Generation Via Auxiliary Outputs on Your Instruments

on November 26, 2020 at 5:33 pm by Meng
Introduction Quite often one wants to generate an electrical waveform to assist his/her lock-in or impedance measurements. Such a function can be generated by a dedicated function generator, but ideally should be done in the same instrument, not only to […]

Measuring Dielectric Properties of Materials with Varying Thickness

on September 30, 2020 at 8:52 am by Meng
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 […]

Multiplexed Impedance Measurements with the MFIA

on June 17, 2020 at 1:43 pm by Meng
Introduction Having more impedance measurement channels is often desirable in many applications. For instance, in electrical impedance tomography (EIT), it is common to have many channels to achieve enough spatial resolution (144 electrodes on the thorax) [1]. Naturally, this can […]

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

on June 15, 2020 at 3:31 pm by Meng
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 […]

5个优化您的阻抗测量的小技巧

on May 11, 2020 at 9:25 am by Meng
阻抗测量可能有诸多不同的要求,但是最终共同的目标都一致,即获得最高的准度,精度和可重复性。本篇博文将指导您如何通过最佳的设置来提升您的阻抗测量结果。5个小技巧包括:1.确保仪器和待测器件之间的接线最佳; 2.使用用户补偿功能提升测量准度;3.选择正确的检测端子配置; 4.尽可能的使用自动输入量程模式; 5.优化平衡测量的速度和精度。

5-tips to Improve Your Impedance Measurement

on April 2, 2020 at 7:45 am by Meng
Introduction Impedance applications often have different requirements, but the common goals are similar; get the best possible accuracy, precision, and repeatability. This blog post will guide you to the best measurement settings to improve your impedance measurements. It will help […]

Automated 2D Impedance Sweep on the MFIA

on August 28, 2019 at 3:43 pm by Meng
Many devices and materials exhibit an impedance which depends on both frequency and other parameters such as bias voltage. To fully characterize the impedance of these samples requires an impedance analyzer with the ability to sweep in two dimensions. The MFIA (and MFLI with MF-IA option) can be easily controlled via any of the five included APIs to open up the full parameter space of impedance analysis.This blog details a short script for Python 3.7 which demonstrates the ease in which multi-dimension impedance sweeps can be carried out.