LWIR Cameras
Key Features of LWIR Cameras
Long-Wave Infrared (LWIR) cameras provide a powerful and flexible approach to imaging temperature distributions without physical contact. Operating in the 8–14 µm spectral band, these systems detect emitted thermal radiation, enabling imaging in complete darkness and in environments where visible imaging is ineffective.
LWIR cameras offer a combination of:
- Passive imaging — no illumination required
- High thermal sensitivity (NETD) — detection of small temperature differences
- Real-time performance — frame rates up to 60 Hz
- Non-contact measurement — safe for high-voltage, moving, or hazardous systems
- Compact, uncooled operation — low power and robust design
Choosing the right lwir camera
Selecting an LWIR camera depends primarily on how the thermal data will be used.
If the goal is to detect anomalies, visualize heat flow, or identify hotspots, a thermal imaging camera is typically sufficient. These systems provide clear, high-contrast images that reveal temperature differences across a scene, making them ideal for inspection and diagnostic tasks.
If the application requires accurate temperature measurement, such as in verifying process conditions, performing failure analysis, or logging thermal data over time, a thermographic camera is required. These systems are calibrated to provide temperature values for each pixel and are typically configured with specific lenses and calibration ranges.
Additional factors include:
* Resolution (640 vs 1280) — determines spatial detail
* Sensitivity (NETD) — ability to detect small temperature differences
* Frame rate — important for dynamic processes
* Interface (GigE, CameraLink) — integration into the system
LWIR Camera Selection Table
If you need assistance with configuring an LWIR imaging system, please contact a Scientific Imaging specialist.
