Posts in Category Demodulation

How to characterize magnetic materials using lock-in amplifiers: A Zurich Instruments and Cryogenic webinar summary

on 15.07.2021 at 11:00 by Jelena on Blog of Jelena Trbovic
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 […]

Webinar summary with Q&A – Probing local magnetic field patterns

on 26.02.2021 at 15:04 by Jelena on Blog of Jelena Trbovic
In this webinar we teamed up with Prof Martino Poggio who’s 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 […]

Get additional insights into your setup with the MF-DIG option

on 08.11.2020 at 15:50 by Jelena on Blog of Jelena Trbovic
Lock-in amplifiers are at their best when rejecting the noise and increasing the signal-to-noise ratio. When the setup is well characterized the measurements are carried out at a single frequency and measured against external parameters. Throughout the measurement, detailed noise […]

The many applications of the MF-MD Multi-Demodulator option

on 24.08.2020 at 09:08 by Jelena on Blog of Jelena Trbovic
During my research days, lock-in amplifiers were a standard fixture in a transport measurement setup, and there were many of them. Each lock-in measured one signal in the experiment. Adding more lock-in amplifiers in the setup was the only way […]

Nanostructure Transport Characterization Webinar

on 25.05.2020 at 11:31 by Jelena on Blog of Jelena Trbovic
First of all thank you everyone for attending the Nanostructure Transport Characterization Webinar! It was my first Webinar and it was an amazing experience for the whole team. We got a lot of questions and in this blog I will […]

Demodulating down to DC with HF2LI

on 18.11.2014 at 09:52 by Jelena on Blog of Jelena Trbovic
Many of our customers use the possibility to measure DC voltage and current, together with an ac signal by setting the demodulation frequency ω=0. The measured value is seemingly incorrect as you need to divide the obtained rms value with […]

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