Zurich Instruments MFLI Digital Lock-In Amplifier 500kHz with LabOne Software
Used, see photos. This listing does not include peripherals such as keyboard, mouse, or display. We are including the MFLI, a Windows 11 control computer with LabOne and the necessary drivers installed, an Ethernet and USB cable to link the devices, the Zurich USB hardware key, and all necessary power cables.
View a video of our technician testing this device:
youtube.com/watch?v=IsxONUF305Q
In the above video, three tests are shown to verify core functions of this amplifier and software.
- Closed-loop test shows a 100kHz output from the device that is looped to the input where it is measured on the scope.
- Frequency Response Analysis test is made using the sweeper and a breadboard RC filter at roughly 1.59kHz. The FRA shows a slow first-order cutoff and a phase graph also tracks the shifting across the 100Hz to 100kHz spectrum.
- Fourier Fast Transform is performed with an external signal generator inputting a square wave. First passing through a breadboard voltage divider to lower the input voltage, the pure 10kHz square wave input is shown and the FFT graph shows odd-harmonics at 30kHz, 50kHz, and so on.
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