Neutron STEM Lab
Learn by measuring, simulating, and validating

Virtual Engineering Labs

Move beyond isolated calculations into browser-based engineering experiments that expose the equations, assumptions, measurements, validation checks, and physical interpretation behind each result. Labs are free, require no account, and are designed to run on ordinary student hardware.

Available virtual laboratories

Practice instrumentation, analyze measurement uncertainty, and explore RF and microwave design using the shared laboratory framework.

Phase 1 completeValidated educational modelReviewed 2026-09-08

Virtual Instrumentation & Measurement Lab

Practice engineering measurement workflows in the browser with transparent models, instrument behavior, validation, and guided experiments.

  • Declarative experiment definitions
  • Deterministic simulation state
  • Reusable instrument and measurement panels
  • Validation against analytic results
  • Responsive light/dark lab shell
  • Two-channel virtual oscilloscope with trigger, cursors, and automatic waveform measurements
  • Reusable function generator with sine, square, triangle, DC, amplitude, offset, frequency, duty-cycle, phase, and output-enable controls
  • Reusable digital multimeter with DC/AC voltage, DC current, resistance, continuity, autorange/manual range, overload indication, and lead guidance
  • Reusable bench power supply with voltage/current limits, output enable, and physically derived CV/CC load behavior
  • Integrated RC, RL, and series-RLC laboratory experiments using the virtual source, DMM, oscilloscope, and analytic validation models
  • Shared deterministic measurement-error model with Ideal/Realistic modes, component tolerance, calibration offset, random noise, and quantization
  • Reusable Guided Lab mode with locally persisted procedure progress, required measurements, graded multiple-choice concept checks, and engineering-validation completion criteria
  • Portable settings, measurement, plot, and Markdown experiment exports generated locally in the browser
  • Cross-instrument production benchmark suite covering analytic solutions, instrument behavior, boundary guards, and deterministic replay
Open Instrumentation Lab →
Phase 2 completeValidated educational modelReviewed 2026-09-16

Measurement, Data Analysis & Uncertainty Lab

Import measurements, examine statistics and residuals, fit calibration models, build uncertainty budgets, and compare analytical propagation with seeded Monte Carlo.

  • Local CSV import with column mapping, unit conversion, and original-data preservation
  • Descriptive statistics, confidence intervals, scatter/line/histogram plots, and uncertainty bars
  • Linear, polynomial, and log-linear exponential fitting with residuals and prediction intervals
  • Type A/B budgets, standard and expanded uncertainty, and exact sensitivity coefficients
  • Seeded Monte Carlo with input correlations, progress, cancellation, and portable exports
  • Five guided experiments with automatically graded multiple-choice questions
Open Data & Uncertainty Lab →
Phase 7 completeValidated educational modelReviewed 2026-09-17

RF & Microwave Engineering Laboratory

Investigate transmission lines, matching, S-parameters, receiver noise, microstrip geometry, and waveguide modes with visible equations and local project files.

  • Six experiments with worked presets and numerical reference checks
  • Smith charts, standing waves, sweeps, and accessible data tables
  • Touchstone two-port import/export and portable local projects
  • Guided procedures and 24 automatically graded conceptual questions
Open RF & Microwave Lab →
Phase 5 completeEducational modelReviewed 2026-09-19

Educational Computational Fluid Dynamics Laboratory

Solve transport and incompressible flow, inspect computed fields, and test stability, conservation, analytical error, and mesh convergence.

  • Six bounded PDE experiments with 24 worked examples
  • Background solving, progress, cancellation, and saved field snapshots
  • Analytical references, conservation checks, and mesh refinement
  • Typeset equations, guided procedures, and 24 graded concept questions
Open CFD Lab →
Transparent engineering methods

A lab should explain more than a graph

Each laboratory is built around deterministic state, unit-safe engineering inputs, explicit assumptions, educational theory, independent validation, accessibility, and light/dark presentation. Later phases will reuse the same architecture rather than becoming disconnected mini-applications.

Read the engineering quality and validation methodology →

Planned laboratory roadmap

Upcoming laboratories in the current development order. Original phase numbers are retained so plans and release notes remain easy to follow.

Phase 8

HVAC & Refrigeration Engineering Laboratory

Planned on the shared, production-validated Phase 1 laboratory architecture.

Phase 4

Power Electronics Design & Simulation Workbench

Planned on the shared, production-validated Phase 1 laboratory architecture.

Phase 3

Educational Finite Element Analysis Workbench

Planned on the shared, production-validated Phase 1 laboratory architecture.

Phase 6

Integrated Mechatronics System Simulator

Planned on the shared, production-validated Phase 1 laboratory architecture.

Phase 9

Machine Design Workbench

Planned on the shared, production-validated Phase 1 laboratory architecture.

Phase 10

Engineering Numerical Methods Laboratory

Planned on the shared, production-validated Phase 1 laboratory architecture.