M81 Synchronous Source Measure System

An innovative architecture for coordinating low-level measurements from DC to 100 kHz

The MeasureReady™ M81-SSM (Synchronous Source and Measure) system provides a confident and straightforward approach for advanced measurement applications. The M81 is designed to eliminate the complexity of multiple function-specific instrumentation setups, combining the convenience of DC and AC sourcing with DC and AC measurement, including a lock‑in’s sensitivity and measurement performance.

This extremely low-noise simultaneous source and measure system ensures inherently synchronised measurements from 1 to 3 source channels and from 1 to 3 measure channels per half-rack instrument — while also being highly adaptable for a range of material and device research applications.

Flexible measurement capabilities

Flexible measurement capabilities

The M81-SSM provides DC and AC stimulus and measurement capabilities for characterising materials and devices in cryogenic, room temperature, and high-temperature environments.


  • MeasureSync™ technology for simultaneous source module update and measure module sampling timing across all channels
  • DC/AC amplitude and phase detection is user-selectable on all measure channels
  • Common DAC/ADC sampling clock ensures highly precise and consistent source/measure timing coordination between 3 sources and 3 measures
  • 100% linear module power supply architecture for lowest possible source/measure noise
  • Fully linear signal path between data converters, modules, and the device under test (DUT)
  • Remote modules for the shortest possible signal path to the DUT, which separates sensitive analogue circuits from digital circuits and unwanted sources of interference typical of traditional single-enclosure instrument designs
  • All source and measure channels are capable of DC and AC to 100 kHz signals
  • Optimised for fundamental, harmonic, and phase AC plus DC biased measurements
  • Modularity allows for flexible, user-configured modules to suit a specific application
  • Remote-mountable amplifier modules are interchangeable between instruments
  • Modules are dynamically recognised when the system is reconfigured
  • Uses a clean, simple UI and a common programming API for fast setup and a shorter learning curve



+44 (0)1372 378822

Dr. Alex Murphy

+44 (0)1372 378822


  • Connect up to three source modules and up to three measure modules
  • Exchange modules and adapt the configuration for each measurement
  • All modules are capable of measuring with DC and AC to 100 kHz
  • All modules are optimised for high precision and common reference and ground.


Supplier Info

For even more information, why not visit our suppliers website.

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M81 Specifications

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