Can you do frequency domain analysis in the lock-in amplifier?
Written by Paul Cracknell
Updated at July 23rd, 2024
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Moku:Go
Moku:Go General Moku:Go Arbitrary Waveform Generator Moku:Go Data Logger Moku:Go Digital Filter Box Moku:Go FIR Filter Builder Moku:Go Frequency Response Analyzer Moku:Go Logic Analyzer & Pattern Generator Moku:Go Oscilloscope & Voltmeter Moku:Go PID Controller Moku:Go Spectrum Analyzer Moku:Go Waveform Generator Moku:Go Power Supplies Moku:Go Lock-in Amplifier Moku:Go Time & Frequency Analyzer Moku:Go Laser Lock Box Moku:Go Phasemeter
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Moku:Lab
Moku:Lab General Moku:Lab Arbitrary Waveform Generator Moku:Lab Data Logger Moku:Lab Digital Filter Box Moku:Lab FIR Filter Builder Moku:Lab Frequency Response Analyzer Moku:Lab Laser Lock Box Moku:Lab Lock-in Amplifier Moku:Lab Oscilloscope Moku:Lab Phasemeter Moku:Lab PID Controller Moku:Lab Spectrum Analyzer Moku:Lab Time & Frequency Analyzer Moku:Lab Waveform Generator Moku:Lab Logic Analyzer/Pattern Generator
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Moku:Pro
Moku:Pro General Moku:Pro Arbitrary Waveform Generator Moku:Pro Data Logger Moku:Pro Frequency Response Analyzer Moku:Pro Oscilloscope Moku:Pro PID Controller Moku:Pro Spectrum Analyzer Moku:Pro Waveform Generator Moku:Pro Lock-in Amplifier Moku:Pro Laser Lock Box Moku:Pro Digital Filter Box Moku:Pro FIR Filter Builder Moku:Pro Phasemeter Moku:Pro Multi-instrument Mode Moku:Pro Logic Analyzer/Pattern Generator Moku:Pro Time & Frequency Analyzer
- Python API
- MATLAB API
- Arbitrary Waveform Generator
- Data Logger
- Digital Filter Box
- FIR Filter Builder
- Frequency Response Analyzer
- Laser Lock Box
- Lock-in Amplifier
- Oscilloscope
- Phasemeter
- PID Controller
- Spectrum Analyzer
- Time & Frequency Analyzer
- Waveform Generator
- Logic Analyzer & Pattern Generator
- Multi Instrument Mode
- Moku Cloud Compile
- Moku general
- LabVIEW
Yes. The built-in oscilloscope can perform FFT at every probe point. The FFT feature can be accessed via the Math function. However, the resolution bandwidth (RBW) is proportional to the sampling rate because the embedded FFT lacks a superheterodyne structure.
If a higher spectral resolution is required, we recommend switching to the Spectrum Analyzer instrument. Switching between instruments on Moku only takes up to a few seconds. Analyze the signal in the Spectrum Analyzer provides additional insights on the bandwidth of the signal. It helps the user to select an appropriate time constant for the measurement.
