Blogs

Reloading Data into LabOne Modules

29.08.2019

LabOne ® now supports reloading data into its modules when using the HDF5 file format. Starting from LabOne 19.05, data acquired in modules such as the Sweeper, DAQ, Scope and Spectrum Analyzer, can be reloaded into the same LabOne module. When the data is loaded into the module, it is...

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What is the Basic Accuracy of an Impedance Analyzer?

29.08.2019

This blog post explains the meaning of basic accuracy when referring to impedance analyzers. The accuracy of an impedance analyzer is a critical parameter that allows the user to know how close the measured impedance will be to the true impedance of the device or sample under test. As the...

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Measuring Low ESL and Low ESR of a DC-Link Capacitor

10.06.2019

This blog post describes how the MFIA (and the MFLI with the MF-IA option) can characterize the equivalent series inductance (ESL) and equivalent series resistance (ESR) of a DC-Link capacitor typically used in power inverters for electric vehicles.

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Gated Data Transfer for Increased Data Sampling Rate

19.12.2018

Introduction For measurements of signals that change rapidly, for example, when measuring capacitance transients in deep level transient spectroscopy (DLTS), high temporal resolution is required. In its standard operating configuration, the MFIA (or the MFLI with the MF-IA option) can sample and transfer impedance data at a continuous rate of...

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Square pulses for DLTS Measurements on the MFIA

22.08.2018

Introduction This blog post shows how to produce square voltage pulses and capture the resulting capacitance transients on a short timescale (20 us), for example, for deep level transient spectroscopy (DLTS) measurements. Using the LabOne ® Threshold Unit (which comes as a standard with the MFIA), it's possible to produce...

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Rapid and Accurate C-V Measurements on the MFIA

19.08.2018

Fast C-V Measurements up to 3000 V/s This blog post demonstrates the ability of the MFIA (and of the MFLI with the MF-IA option) to measure capacitance on a short timescale (20 us) as a function of DC bias voltage, for example, for fast capacitance-voltage profiling measurements. Voltage sweeps of...

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Displaying Nyquist Plots on the MFIA Impedance Analyzer

27.09.2017

Nyquist plots are a key tool when displaying complex impedance data. They display the real part of the signal on the X-axis against the imaginary part on the Y-axis. Each point on the plot represents a different frequency. The MFIA (and the MFLI with the MF-IA option) can display impedance...

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LCR Meter vs Impedance Analyzer

11.08.2017

We are often asked about the difference between LCR meters and impedance analyzers, especially given that the MFIA Impedance Analyzer combines the functionalities of both instruments. LCR meters and impedance analyzers are fundamentally similar, in that they both measure impedance parameters such as capacitance, inductance and resistance.They achieve this by...

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Teraohm Impedance Measurements with the MFIA Impedance Analyzer

29.05.2017

Introduction This blog post describes impedance measurements of a 1 TΩ commercially-available resistor using the MFIA Impedance Analyzer. This further demonstrates how the MFIA can accurately measure challenging components with very high impedance. Thanks to a clear reactance chart, MFIA users know what accuracy they can expect starting from the...

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Characterizing High-Q 100 pF Capacitors with the MFIA

30.01.2017

In a previous blog post we discussed how the MFIA could be used to investigate 3000 F capacitors; here we turn to the other end of the spectrum to investigate 100 pF capacitors. Specifically, this blog post looks at high-Q (low loss) commercially available SMD capacitors...

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Characterizing the ESR of a Supercapacitor with the MFIA

11.01.2016

Supercapacitors are very useful devices providing power for applications ranging from SRAM to high-speed trains. The energy density is 10 - 100 times higher than that of standard (electrolytic) capacitors. And although they have a lower energy density than lithium-ion batteries, they have a much higher power density...

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