Posts tagged HF2LI-MF

Dynamic suppression of unwanted frequency components with an HF2LI

on 26.06.2015 at 14:17 by Paolo Navaretti on Blog of Paolo Navaretti
There are many experimental situations in which the component of interest in a signal is not the strongest one, but some other related component, for instance the side bands in amplitude or frequency modulated signals. In such a case, the […]

DC Offsets Measurement with the HF2LI Lock-in Amplifier

on 04.10.2013 at 11:55 by Romain Stomp on Blog of Romain Stomp
At first thought, DC measurements might be outside the scope of standard lock-in amplifiers. With the HF2LI one has several tools to monitor and record the DC offset while measuring the modulated signal. In practice, many customers need to record […]

ω/2 Demodulation for a Parametric Oscillator

on 27.02.2013 at 10:04 by James Wei on Blog of James Wei
We often get questions from HF2LI lock-in amplifier customers who characterize MEMS and sometimes from those doing AFM scans on how to measure at half reference frequency using a lock-in amplifier. Half reference frequency lock-in measurement is often necessary when […]