A streaming open-source software lock-in demodulator achieves roughly two orders of magnitude lower 1/f background noise at 1 Hz than an SR830 commercial lock-in, enabling lower-noise resistance fluctuation measurements.
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Software-defined lock-in demodulator for low-frequency resistance noise measurements
A streaming open-source software lock-in demodulator achieves roughly two orders of magnitude lower 1/f background noise at 1 Hz than an SR830 commercial lock-in, enabling lower-noise resistance fluctuation measurements.