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SPM Users’ Meeting in Mainz

on 21.07.2017 at 15:08 by Romain Stomp on Blog of Romain Stomp
It was an honor and privilege to host our first SPM Users’ Meeting in Mainz this year, in the group of Prof. Angelika Kuehnle. This 2-day gathering was a time for intense knowledge sharing among Zurich Instruments’ Users with invited […]

Output Low-Frequency Sinusoidal Signal on the AUX Output of MFLI

on 30.05.2017 at 14:42 by Marco Brunner on Blog of Marco Brunner
This blog shows how to output sinusoidal signals on the AUX Output with the MD multi-demodulator option. Keep in mind that the AUX output are not designed to output sinusoidal signals as the Signal Output.   Setup 1. On AUX OUT […]

Teraohm Impedance measurements with the MFIA Impedance Analyzer

on 29.05.2017 at 11:45 by Tim on Blog of Tim Ashworth
Introduction This blog post describes impedance measurements of a 1 TΩ commercially-available resistor using the MFIA impedance Analyzer. This further demonstrates the performance of the MFIA to accurately measure challenging components with very high impedance.  Thanks to a clear reactance […]

Noise Analysis of Signal Components

on 29.03.2017 at 13:57 by Mehdi on Blog of Mehdi Alem
Introduction  In this post, the relation between the noise of signal amplitude and phase on one hand and the noise of in-phase and quadrature components of the signal on the other hand is investigated. We try to respond to the wrong […]

Fast auto-approach with MFLI Threshold Unit to control stepper motor

on 22.02.2017 at 11:19 by Romain Stomp on Blog of Romain Stomp
In many applications where the distance between two objects need to be reduced to a predefined gap, the ability to control a stepper motor with clear stop conditions from different sensors is of high practical interest. Such functionality can be […]

RF Reflectometry Measurements of Quantum Dots

on 20.02.2017 at 16:11 by brunok on Blog of Bruno Küng
Introduction Characterizing semiconductor spin qubits with radio-frequency (RF) reflectometry offers a speed advantage over low-frequency conductance measurements thanks to insensitivity to 1/f noise. In this blog post, the measurements of Josip Kukučka and his colleagues working at the Nanoelectronics group at […]

Compensating delay-induced phase shifts for high-frequency resonators

on 20.02.2017 at 14:31 by Romain Stomp on Blog of Romain Stomp
Phase-Locked Loop (PLL) or other PID controllers on nano-mechanical resonators rely on clean phase signals that exhibit large slope, or significant phase shift, around the resonance frequency. For really high-frequency NEMS and opto-mechanical systems above a few tens or hundreds […]

Time-Domain Response of Lock-in Filters

on 09.02.2017 at 08:36 by Mehdi on Blog of Mehdi Alem
Introduction  The heart of a lock-in amplifier is a phase-sensitive detector which includes a signal mixer and a low-pass filter. In this post, we focus on the time response of the low-pass filters implemented in Zurich Instruments lock-in amplifiers including […]

Characterizing High-Q 100 pF Capacitors with the Zurich Instruments MFIA

on 30.01.2017 at 09:30 by Tim on Blog of Tim Ashworth
Introduction In the last impedance 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 […]

The Nyquist Diagram for Electrical Circuits

on 11.01.2017 at 07:10 by Mehdi on Blog of Mehdi Alem
Introduction The Nyquist diagram of a transfer function is a parametric plot of its imaginary part versus real part as the frequency sweeps in a certain range. When dealing with electric circuits, the transfer function is the immittance of the circuit, i.e. […]

Workshop on Nanomechanics – Montpellier, France

on 09.12.2016 at 11:24 by Romain Stomp on Blog of Romain Stomp
This workshop organized with CNRS customers in Montpellier among the RéMiSoL network (Réseau des Microscopies à Sondes Locales) focused on all aspects of contact mechanics at the nanoscale and in particular using resonant contact AFM mode (CR-AFM). Contact Resonance tracking measures the […]

Using the MFIA Impedance Analyzer to characterize the ESR of a Super-capacitor

on 01.11.2016 at 10:14 by Tim on Blog of Tim Ashworth
Introduction Super-capacitors 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 […]

Frequency Response Measurement with Chirps and Leakage-Free FFT

on 28.10.2016 at 16:08 by brunok on Blog of Bruno Küng
Introduction This post explains how to measure the frequency response of a component or system with high spectral resolution in a minimum amount of time. Rather than sweeping the frequency and recording each spectral point individually, the approach presented here is […]

LabOne Imaging: Software Trigger’s new Grid Mode

on 27.09.2016 at 11:32 by Daniel on Blog of Daniel Wright
An image obtained using SW Trigger's Grid Mode.
In LabOne Release 16.04 the Software Trigger receives a powerful extension, Grid Mode, which organises the triggered data in a 2-D matrix allowing image construction direct from LabOne. This blog explains how this new functionality works and describes its most […]

Low Noise Digitizer und Lock-in Verstärker

on 29.07.2016 at 13:27 by Marco Brunner on Blog of Marco Brunner
Zurich Instruments setzt mit der Digitizer Option für den MFLI Lock-in Verstärker einen neuen Meilenstein bei Messungen im mittleren und niedrigen Frequenzbereich. Strom- und Spannungssignale werden mit einer Abtastrate von 60 MSa/s und einer Signalbandbreite von 7 MHz digitalisiert. Aussergewöhnlich […]