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LabAgent - Catalog

Measurement Templates

Templates define what to measure. Located in src/lab_harness/planning/templates/.

Electrical Characterization

Template Description Instruments
iv.yaml Current-Voltage curve Source meter
rt.yaml Resistance vs Temperature Source meter + temp controller
delta.yaml Ultra-low resistance (delta mode) K6221 + K2182A
high_r.yaml High resistance (>1 GΩ) Electrometer
transfer.yaml FET transfer curve Source meter (2 channels)
output.yaml FET output curve Source meter (2 channels)
breakdown.yaml Dielectric breakdown Source meter

Magnetic Measurements

Template Description Instruments
ahe.yaml Anomalous Hall Effect Source meter + DMM + gaussmeter
mr.yaml Magnetoresistance Source meter + DMM + gaussmeter
sot.yaml Spin-Orbit Torque loop shift + pulse source
hall.yaml Standard Hall effect Source meter + DMM + gaussmeter
fmr.yaml Ferromagnetic resonance Lock-in + gaussmeter
hysteresis.yaml Magnetic hysteresis (VSM/SQUID) Magnetometer + gaussmeter

Thermoelectric

Template Description Instruments
seebeck.yaml Seebeck coefficient DMM + temp controller
thermal_conductivity.yaml Thermal conductivity Heater + temp controller

Superconductivity

Template Description Instruments
tc.yaml Superconducting Tc Source meter + temp controller
jc.yaml Critical current density Source meter + temp controller

Electrochemistry

Template Description Instruments
cyclic_voltammetry.yaml Cyclic voltammetry Potentiostat
eis.yaml Electrochemical impedance LCR meter
chronoamperometry.yaml Chronoamperometry Potentiostat

Dielectric & Ferroelectric

Template Description Instruments
cv.yaml Capacitance-Voltage LCR meter
pe_loop.yaml P-E hysteresis loop HV source + charge amp
pyroelectric.yaml Pyroelectric current Electrometer + temp controller

Semiconductor

Template Description Instruments
photo_iv.yaml Solar cell IV Source meter + lamp
dlts.yaml Deep Level Transient Spectroscopy LCR + temp controller

Sensors

Template Description Instruments
gas_sensor.yaml Gas sensor response DMM + gas controller
humidity_response.yaml Humidity sensor DMM + humidity chamber

Quantum Design PPMS/MPMS

Template Description Instruments
ppms_rt.yaml PPMS R-T (four-probe) PPMS (MultiPyVu)
ppms_mr.yaml PPMS Magnetoresistance PPMS (MultiPyVu)
ppms_hall.yaml PPMS Hall Effect PPMS (MultiPyVu)
ppms_hc.yaml PPMS Heat Capacity PPMS (MultiPyVu)
mpms_mh.yaml MPMS M-H Loop (SQUID) MPMS (MultiPyVu)
mpms_mt.yaml MPMS M-T ZFC/FC MPMS (MultiPyVu)

General Purpose

Template Description Instruments
custom_sweep.yaml User-defined X-Y sweep Any

Instrument Reference Procedures

Command sequences (SCPI, ASCII-line, or vendor-API) for common instruments. Located in src/lab_harness/reference/instrument_procedures.py. Currently 33 procedures spanning electrical, signals/RF, optics, electrochemistry, biology/analytical, gas/flow, and cryogenic instruments.

Electrical / source-measure / DMM

Procedure Instruments Use Case
IV_K2400 Keithley 2400 Standard IV curve
DELTA_K6221 K6221 + K2182A Ultra-low resistance
HIGH_R_K6517B Keithley 6517B High impedance materials
NANOVOLT_K2182A Keithley 2182A Low-noise voltage
DMM_K2000 Keithley 2000 General voltage/resistance
DMM_A34401 Agilent 34401A / Keysight 34461A General purpose DMM

Signals / RF / waveform

Procedure Instruments Use Case
SCOPE_CAPTURE_TEK Tektronix TDS/DPO/MSO Waveform capture
SCOPE_CAPTURE_KEYSIGHT Keysight DSOX/MSOX Waveform capture
FGEN_KEYSIGHT Keysight 33500B/33622A Arbitrary waveform output
PSU_KEYSIGHT_E36300 Keysight E36313A Programmable DC supply
LOCKIN_SR830 SRS SR830 AC / small-signal detection
LOCKIN_SR860 SRS SR860/SR865A AC / small-signal detection (SCPI)
LOCKIN_ZURICH_MFLI Zurich Instruments MFLI High-end lock-in via zhinst-toolkit

Optics / photonics / spectroscopy

Procedure Instruments Use Case
OPTICAL_POWER_PM100D Thorlabs PM100D / PM400 Optical power at wavelength
UV_VIS_OCEAN_INSIGHT Ocean Insight USB2000/QEPro UV-Vis absorbance spectrum

Electrochemistry

Procedure Instruments Use Case
CV_E4980A Keysight E4980A Capacitance characterization
CV_BIOLOGIC BioLogic SP-200/VSP/VMP3 Cyclic voltammetry via easy-biologic
CV_GAMRY Gamry Reference 600+/Interface 1010B CV via COM/ActiveX
CV_CHI CH Instruments CHI760E/CHI660E CV via hardpotato macro driver

Gas / flow / pressure

Procedure Instruments Use Case
GAS_FLOW_ALICAT Alicat MC-series MFC Gas flow setpoint

Analytical / biology

Procedure Instruments Use Case
WEIGH_METTLER Mettler Toledo XS/XP Stable mass readout (MT-SICS)
WEIGH_OHAUS Ohaus Adventurer Mass readout over RS-232
PH_ORION Thermo Orion Star A221 pH / ISE / mV readout

Temperature / cryogenic

Procedure Instruments Use Case
RT_LS350 Lakeshore 350 Temperature-dependent measurements
TEMP_OXFORD_ITC Oxford Mercury iTC Cryostat temperature control

DAQ

Procedure Instruments Use Case
DAQ_NI_AO NI USB-6351/6001/6009 Analog voltage output
DAQ_NI_AI NI USB-6351/6001/6009 Analog voltage input

Condensed-matter specialty (Quantum Design)

Procedure Instruments Use Case
PPMS_RT QD PPMS (MultiPyVu) R-T measurement
PPMS_MR QD PPMS (MultiPyVu) Magnetoresistance
PPMS_HALL QD PPMS (MultiPyVu) Hall effect
PPMS_HC QD PPMS (MultiPyVu) Heat capacity
MPMS_MH QD MPMS (MultiPyVu) M-H loop (SQUID)
MPMS_MT QD MPMS (MultiPyVu) M-T ZFC/FC

Can't find your instrument? Call the manual_lookup MCP tool (or labharness's AI chat) with the make and model — it will return the manufacturer's programming manual URL plus any open-source Python driver it knows about, before writing new command sequences.

How to Contribute

Add a New Measurement Template

  1. Create a YAML file in src/lab_harness/planning/templates/
  2. Follow the format of existing templates (see iv.yaml for reference)
  3. Add the measurement type to MeasurementType enum in src/lab_harness/models/measurement.py
  4. Add required roles to MEASUREMENT_ROLES in src/lab_harness/discovery/classifier.py
  5. Submit a pull request

Add an Instrument Driver Reference

  1. Add SCPI sequences to src/lab_harness/reference/instrument_procedures.py
  2. Include init, measure, and shutdown sequences
  3. Document default parameters
  4. Submit a pull request

Add an Analysis Template

  1. Create a Python script in src/lab_harness/analysis/templates/
  2. Use {{DATA_PATH}} and {{OUTPUT_DIR}} placeholders
  3. Save figures as PNG (300 dpi) and PDF
  4. Submit a pull request