Lock-in Amplifiers

Best Practices in Sensor Characterization and Control - Q&A

02.12.2021

For this webinar we teamed up with Dr. Tomás Manzaneque , whose work focuses on the fabrication, modeling and interfacing of mechanical micro-resonators in different fields of application: examples are rheological sensing, ultra-sensitive mass sensing, passive conditioning of RF signals for the Internet-of-Things communications, and single-cell biopsy. His research interests...

How to Control Spectral Leakage with Window Functions in LabOne

25.11.2021

Symmetric and asymmetric window functions

Spectral characterization of signals and systems is required in a broad range of applications in physics and engineering. Analyzing a signal in the frequency domain reveals valuable information about the signal behavior which is not necessarily obtainable from its time-domain analysis...

The LabOne Multi-Device Synchronization Feature

24.08.2021

Configuration to measure the Hall effect using 2 MFLI Lock-in Amplifiers synchronized with MDS.

In this blog post we want to present a lesser known but very powerful LabOne ® tool freely available to all Zurich Instruments users: multi-device synchronization (MDS). Although all Zurich Instruments lock-ins and impedance analyzers are equipped with multiple demodulators either natively or through upgrade options, and most instruments have...

Noise Spectral Density Measured with Lock-in Amplifiers

15.08.2021

Proper noise characterization is essential in many applications, especially when dealing with tiny signals buried in noise like in nanotechnology, photonics and quantum physics. Noise characteristics of a system are often represented by the noise spectral density in amplitude or power mode, the latter being called power spectral density (PSD), within the frequency range of interest...

How to Characterize Magnetic Materials With Lock-in Amplifiers

15.07.2021

In this webinar we covered two basic magnetic characterization techniques, the vibrating sample magnetometry (VSM) and AC susceptibility where lock-in amplifiers are essential part of the measurement and the detection chain. We teamed up with Yury Bugoslavsky, who is managing VSM products at Cryogenic Ltd...

Optimizing the SNR of Laser-Scanning Microscopes with Lock-in Amplifiers

25.05.2021

Improving the signal-to-noise ratio (SNR) is desirable for every laser-scanning microscopy application. It enables the observation of smaller changes or faster processes in a sample. This blog post explains how using a lock-in amplifier or a boxcar averager can boost the SNR compared to using a digitizer only. Furthermore, I...

Probing Local Magnetic Field Patterns - Q&A

26.02.2021

For this webinar we teamed up with Prof. Martino Poggio , whose work focuses on understanding the physics of materials and phenomena that is strongly dependent on the local conditions, be it by impurities or through the design through local probing of magnetic fields coming from currents and magnetization. Several...

Content Review – Lock-in Detection

15.02.2021

Test and measurement tasks often carry the challenge that sought for signals are buried in noise. The fundamental use of a lock-in amplifier is to recover these signals, but modern digital lock-in amplifiers can do much more than this. To help you take full advantage of the capabilities of your...

How to Check the Input Noise Level of the MFLI

23.12.2020

How to check the input noise of an instrument? This blog demonstrated how to use LabOne to perform a test in a few steps.

Function Generation Via Auxiliary Outputs on Your Instruments

26.11.2020

Introduction Quite often one wants to generate an electrical waveform to assist his or her lock-in or impedance measurements. Such a function can be generated by a dedicated function generator, but ideally should be produced by the same instrument, not only to save lab space but also to minimize the...