Phasemeter

The Moku Phasemeter measures the phase, relative to a reference clock, of up to four input signals with better than 6 μradian precision from 1 kHz to 300 MHz. Built on a digitally implemented, phase-locked loop architecture, the Moku 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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The Moku Phasemeter is easy to use and offers a range of advanced capabilities to optimize your experiment — at the most cost-effective price in the industry.

IPad interface of Moku:Pro Phasemeter.

Multi-channel phase, frequency, and amplitude measurements

Utilize up to four independent Phasemeter channels and generate sine waves that are phase-locked to the inputs divided down to 0.125x or multiplied up to 250x, or drive measured phase to output with V/cycle settings and phase wrap options. With a phase-locked loop architecture, the Moku Phasemeter continuously tracks the phase, frequency, and amplitude of an input signal at the same time.

Choose between flexible signal tracking options

Measure signals with phase-locked loop tracking bandwidths from 1 Hz (great for tracking low signal-to-noise ratio signals) up to 1 MHz (ideal for signals with large dynamics).

Phasemeter Power Spectral Density display on the Moku:Pro iPad display.

Real-time data analysis for better signal visualization

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

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.

Engineer working at a desk writing a script to automate his tests.

Engineered to work seamlessly with your favorite APIs

API integration with MATLAB, LabVIEW, and more allows straightforward automation of your Moku device in complex setups or for repetitive tasks. Save your measurements, screenshots, traces, and other settings locally or to your preferred cloud app. You can also send work to yourself or colleagues within the Moku app.

Try the software

Engineered for demanding applications

You can’t innovate for the future when your test equipment is stuck in the past. Use the Moku Phasemeter to accelerate development timelines with speed and flexibility unmatched by any other instrument in its class.


Directed energy


Gravitational wave detection


Interferometry


Optical ranging


Oscillator analysis

Integrates seamlessly with your tech stack

Moku:Go is not compatible with iPadOS

Tech specs and docs

The Moku Phasemeter runs on Moku:Pro, Moku:Lab, and Moku:Go. Compare the specifications to choose the right device for your application.

Moku:Pro

Learn more

Moku:Lab

Learn more

Moku:Go

Learn more

Technical specifications

Input channels

4

2

2

Frequency range

1 kHz to 300 MHz

1 kHz to 200 MHz

1 kHz to 30 MHz

Phase precision

1 nrad

1 nrad

1 nrad

Frequency precision

10 µHz

4 μHz

1 μHz

Clock stability

< 300 ppb

< 500 ppb

< 50 ppm

Software & APIs

iPadOS app
Windows app, macOS app
API support for Python, MATLAB, and LabVIEW

iPadOS app
Windows app, macOS app
API support for Python, MATLAB, and LabVIEW

Windows app, macOS app
API support for Python, MATLAB, and LabVIEW

Documentation

Moku:Pro

Phasemeter

Technical Specifications

Input Channels
4

Frequency Range
1 kHz – 300 MHz

Phase Precision
1 nrad

Frequency Precision
10 µHz

Clock Stability
< 300 ppb

Software & APIs
iPadOS App
Windows App, macOS App
API support for Python, MATLAB, and LabVIEW

Moku:Lab

Phasemeter

Technical Specifications

Input Channels
2

Frequency Range
1 kHz – 200 MHz

Phase Precision
1 nrad

Frequency Precision
4 μHz

Clock Stability
< 500 ppb

Software & APIs
iPadOS App
Windows App, macOS App
API support for Python, MATLAB, and LabVIEW

Moku:Go

Phasemeter

Technical Specifications

Channels
2

Frequency Range
1 kHz – 30 MHz

Phase Precision
1 nrad

Frequency Precision
1 μHz

Clock Stability
< 50 ppm

Software & APIs
Windows App, macOS App
API support for Python, MATLAB, and LabVIEW