LaVision FlameMaster Multifunctional Laser Imaging Measurement and Analysis System
| Brand | LaVision GmbH |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | FlameMaster Multifunctional |
| Pricing | Available Upon Request |
Overview
The LaVision FlameMaster Multifunctional Laser Imaging Measurement and Analysis System is a turnkey, research-grade platform engineered for quantitative, spatially resolved diagnostics of reactive flows—particularly turbulent premixed and non-premixed flames, ignition processes, and combustion instability studies. Built upon core laser-induced fluorescence (LIF), Rayleigh scattering, and laser-induced incandescence (LII) principles, the system enables simultaneous, time-resolved imaging of multiple combustion-relevant scalar fields: fuel distribution (via tracer-LIF), flame temperature (via Rayleigh thermometry), hydroxyl radical (OH) concentration (via OH-LIF), and soot volume fraction (via quantitative LII). Its modular architecture integrates a high-stability, multi-wavelength pulsed Nd:YAG laser (266 nm, 355 nm, 532 nm) with time-gated, intensified CCD or sCMOS cameras (e.g., IRO series), programmable timing electronics (PTU X), and precision optical components—all synchronized to sub-nanosecond accuracy. The system operates under strict alignment with fundamental combustion diagnostics standards, supporting traceable calibration protocols required for peer-reviewed experimental validation and model benchmarking.
Key Features
- Multi-modal laser imaging capability: integrated support for Tracer-LIF (e.g., acetone, TMPD), OH-LIF, Rayleigh thermometry, and quantitative LII within a single hardware framework.
- Standard triple-wavelength Nd:YAG laser (266 nm / 355 nm / 532 nm) with software-controlled shutter for stable UV output and Class 1 eye-safe operation during standby.
- T-YAG Module upgrade option: intra-cavity etalon-based wavelength tuning enabling direct OH excitation at 283.4 nm without external dye lasers—retrofittable to compatible Nd:YAG platforms.
- Programmable Timing Unit (PTU X): externally triggered, high-precision synchronization of laser pulses, camera gating, and auxiliary actuators (e.g., fuel injectors, spark triggers) with jitter < 1 ns.
- Modular expandability: seamless integration with optional FlameMaster Raman (for species concentration and temperature via spontaneous Raman scattering) and FlameMaster Tunable LIF (for additional radicals such as CH, NO, CN).
- Robust mechanical design: vibration-isolated optical breadboard, motorized filter wheels, and calibrated neutral density filters for quantitative intensity normalization.
Sample Compatibility & Compliance
The FlameMaster Multifunctional system is designed for non-intrusive, in-situ diagnostics in laboratory-scale burners (Bunsen, swirl-stabilized, jet-in-crossflow), optical engines, shock tubes, and laminar flame reactors. It accommodates both atmospheric and pressurized (up to 10 bar) combustion environments with appropriate viewport specifications (e.g., fused silica, CaF₂). All optical paths comply with ISO 11146 (laser beam parameters) and IEC 60825-1 (laser safety classification). Data acquisition workflows support GLP-compliant metadata logging—including laser energy monitoring, camera gain/offset settings, and environmental conditions—ensuring auditability for regulatory or collaborative research contexts. Calibration procedures follow ASTM E2579 (standard guide for thermographic phosphor thermometry) and adapted methodologies aligned with CIE and NIST traceable radiometric references.
Software & Data Management
LaVision’s DaVis software suite provides unified control, acquisition, and post-processing for all FlameMaster modalities. It features real-time laser energy feedback correction, automatic registration of multi-channel images via sub-pixel cross-correlation, and physics-based quantification modules—including LII soot calibration using the two-color method, Rayleigh thermometry with spectral fitting against synthetic air spectra, and OH-LIF Abel inversion for axisymmetric flames. Raw data are stored in HDF5 format with embedded metadata (timestamps, pulse energies, camera parameters), ensuring compatibility with Python (h5py), MATLAB, and third-party analysis pipelines. Audit trails, user access logs, and electronic signatures meet FDA 21 CFR Part 11 requirements when configured with optional DaVis Validation Package—supporting GxP-aligned combustion research in aerospace propulsion or clean energy development.
Applications
- Quantitative soot formation and oxidation kinetics in diesel and aviation fuel flames.
- Spatial-temporal tracking of flame front propagation and local extinction events in turbulent premixed systems.
- Validation of Large Eddy Simulation (LES) and Direct Numerical Simulation (DNS) models for OH chemistry and thermal structure.
- Investigation of alternative fuel blending effects on mixture preparation (acetone-LIF) and reaction zone topology (OH-LIF).
- Time-resolved temperature mapping across flame brush regions using single-shot Rayleigh thermometry.
- Multi-parameter correlation studies linking soot inception (LII), heat release (OH-LIF), and fuel-air mixing (tracer-LIF) in transitional combustion regimes.
FAQ
What laser wavelengths are standard on the FlameMaster Multifunctional system?
The base configuration includes a pulsed Nd:YAG laser emitting at 266 nm, 355 nm, and 532 nm—optimized for OH-LIF, tracer-LIF, Rayleigh scattering, and LII, respectively.
Is OH-LIF possible without the T-YAG Module?
No—OH-LIF requires excitation at 283.4 nm; the T-YAG Module is mandatory to generate this wavelength from the frequency-quadrupled (266 nm) Nd:YAG output.
Can the system perform simultaneous multi-parameter imaging?
Yes—using sequential double- or triple-pulse illumination and multi-gate camera acquisition, it supports concurrent fuel, OH, and temperature imaging with temporal resolution down to 100 ns between channels.
Does the system support calibration traceability for publication-grade data?
Yes—DaVis includes built-in tools for spectral calibration, laser energy normalization, and reference-based temperature/soot quantification, with documentation compliant with journal requirements (e.g., Combustion and Flame, Proceedings of the Combustion Institute).
What camera technologies are compatible with the FlameMaster platform?
LaVision-certified intensified cameras (e.g., IRO-PIKO, IRO-SCMOS) with gating widths from 3 ns to 10 µs, quantum efficiency >40% at UV–visible range, and pixel sizes ≤13 µm.
