GrapheneLab Measurement Code (gcodes)

This is a Python-based transport measurement code used in GrapheneLab in National University of Singapore. The code was originally developed by Eoin O'Farrell and currently maintained by Huang Junye.

There is QCoDeS why would I want to use gcodes?

QCoDeS is comprehensive, flexible but difficult to use. gcodes is designed to be simple and easy to use for simpler transport measurements.

Features

Use PyVisa to talk to instruments.

Currently supported instruments include:

Measurement instruments:

• Keithley 2002
• Keithley 2182A
• Keithley 2400
• Keithley 6221
• Keithley 6430
• SRS SR830
• SRS SR850

Temperature and Magnet controllers:

• Picowatt AVS-47B resistance bridge (for Leiden Cryogenics Dilution Refrigerators)
• Leiden Cryogenics Triple Current Source
• LakeShore 335 temperature controller
• LakeShore 340 temperature controller
• LakeShore 475 DSP Gaussmeter
• Oxford Mercury iPS magnet power supply

Live plotting using PyQtGraph

Measurement results are plotted live using PyQtGraph.