Experimental data of high-performance digital lock-in amplifier module based on open source FPGA

This is the data for the paper we prepared titled ''High-performance digital lock-in amplifier module based on open-source FPGA: Implementation and applications''. In this work, a high-performance digital lock-in amplifier module based on an open-source FPGA is constructed. The module is calibrated based on the obtained correction curves of the demodulation results such as amplitude and phase. As demonstrations, the phase difference and thermal noise measurement are carried out by using the module. The research on temperature sensing with the frequency shift of quartz crystals and semiconductor doping concentration measurement has also been implemented. These demonstrations show that the lock-in module has good application prospects.