Overview

Moku:Lab’s Phasemeter measures phase of up to two input signals with better than 6 µradian precision from 1 kHz up to 200 MHz. Based on a digitally implemented phase-locked loop architecture, Moku:Lab’s phasemeter provides exceptional dynamic range, zero dead-time and measurement precision that exceeds the performance of conventional lock-in amplifiers and frequency counters.

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Specs

Input frequency range
1 kHz – 200 MHz

Tracking bandwidth
• 300 mHz
• 600 mHz
• 2.5 Hz
• 10 Hz
• 40 Hz
• 150 Hz
• 600 Hz
• 2.5 kHz
• 10 kHz

Frequency set-point precision
3.55 µHz

Frequency precision
Up to f x 10 µHz/√Hz, f = Fourier frequency

Input voltage range
1 Vpp or 10 Vpp

Data logging rates
• 30.5 Hz
• 122 Hz
• 488 Hz
• 1.95 kHz
• 15.6 kHz
• 125 kHz

Phase precision
Up to 100 nCycles/√Hz above 1 Hz

Key features

Two independent phasemeter channels with output options

Track and record the phase, frequency, and amplitude of two independent signals.

Phase-locked output option enables you to generate sine waves that are phase-locked to the inputs.

Real-time data analysis support
Real-time spectral analysis to display and save Power Spectral Densities, Amplitude Spectral Densities, Allan Deviation and more

Built-in analysis
Allan Deviation

Flexible signal tracking options
Phase-locked loop tracking bandwidths from 10 mHz (great for tracking low SNR signals) up to 10 kHz (ideal for signals with large dynamics).

Free-wheeling mode intelligently holds the loop state when the signal fades unexpectedly and automatically re-engages when it returns.

Applications

Oscillator analysis

Optical/ultrasound ranging

Gravitational wave detection

Interferometry

Phase-locked loop

Documentation

Specs
Moku:Lab Spec Sheet

Datasheet
Phasemeter Datasheet

App Note
Measuring Allan Deviation

User Manual
Phasemeter User Manual

Videos
Allan Deviation with Moku:Lab’s Phasemeter – Application

Software & APIs

Track your signal's phase, frequency, and amplitude, all from intuitive Moku software for iPad, or with APIs for Python, MATLAB, and LabVIEW.
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Freedom in the lab when you need it

Simultaneously measure phase, frequency, and amplitude without being tethered to your lab bench. Conduct real-time spectral analysis from the intuitive iPad app while moving freely throughout the lab.

Try it in demo mode
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Simultaneously measure phase, frequency and amplitude

With a phase-locked loop architecture, Moku:Lab’s Phasemeter continuously tracks the phase, frequency, and amplitude of an input signal at the same time.

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Real-time spectral analysis

Analyze measurements in the time and frequency domains, including Allan deviation, power and amplitude spectral densities.

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Available on Moku:Lab hardware

The digital signal processing power of an FPGA coupled with the high-quality analog front-end ensures that with Moku:Lab you never have to sacrifice performance for flexibility.

Moku:Lab features a suite of twelve different instruments

Replace multiple pieces of equipment with a single device at a fraction of the cost.