Uncooled 640×512 LWIR Thermal Camera Comparison: Customer Requirement vs. Mini Series Module
Tabla de contenido
Introducción
Recientemente, a customer inquired about a compact thermal imaging module with the following key parameters:
Resolución: 640×512
Velocidad de fotogramas: 60fps
Lente: 9.1mm athermal fixed-focus
campo de visión (H×V): 48.7°×38.6°
Spectral range: 8-14 μm
Thermal sensitivity (NETO): <50mK
Salida de vídeo: CVBS (NTSC)
Tensión de funcionamiento: 4.5–18V
Temperatura de funcionamiento: -40°C~+80°C
Dimensiones: 25.8×25.8×28mm
Peso: 38gramo
This request perfectly aligns with our Thermal Module (Mini Series) line — a family of ultra-compact uncooled LWIR camera cores. Below is a detailed comparison between the customer’s requirements and our Mini-640-CVBS modelo.
1. Specification Comparison
| Parámetro | Requisito del cliente | Vcan2170 (Mini-640-CVBS) | Resultado |
|---|---|---|---|
| Tipo de detector | Uncooled (unspecified) | Óxido de vanadio (voz) uncooled FPA | ✅ Match |
| Resolución | 640×512 | 640×512 | ✅ Match |
| Paso de píxeles | 12µm | 12µm | ✅ Match |
| Rango espectral | 8-14 μm | 8-14 μm | ✅ Match |
| Lente | 9.1mm athermal fixed-focus | 9.1mm / 13mm F1.0 athermal | ✅ Match |
| Campo de visión (campo de visión) | 48.7°×38.6° | 45.9°×36.9° | ⚠️ Slight difference |
| Velocidad de fotogramas / Refresh Rate | 60fps / 25Hz | 50fps | ⚠️ Slightly lower |
| Sensibilidad térmica (NETO) | <50mK | ≤40mK @ F1.0 | ✅ Better |
| Procesamiento de imágenes | NUC, 3DNR, DDE | NUC, 2D/3DNR, DDE | ✅ Match |
| Modo de visualización | Blanco caliente | 18 color palettes (includes White Hot) | ✅ More options |
| Salida de vídeo | CVBS (NTSC) | CVBS / USB2.0 | ✅ Match (more flexible) |
| Fuente de alimentación | 4.5–18V | 4.5–20V | ✅ Match |
| El consumo de energía | — | <0.75W | ✅ Low power |
| Dimensiones | 25.8×25.8×28mm | 17.3×17.3×35.6mm | ⚠️ Different structure |
| Peso | 38gramo | 21gramo (without lens) | ⚠️ Lighter |
| Temperatura de funcionamiento | -40°C~+80°C | -40°C~+70°C | ⚠️ 10°C lower upper limit |
| Detection / Recognition / ID Range | 1.1km / 250metro / 170metro | Not specified | ⚠️ Depends on lens |
| Depth of Field | 1.69m–∞ | Not specified | ⚠️ Not defined |
| sistema de televisión | NTSC | salida CVBS ( PAL or NTSC ) | ✅ Match |
2. Summary of Compatibility
| Categoría | Compatibilidad | Comentarios |
|---|---|---|
| Core Imaging Performance | ✅ Fully compatible | Same resolution, pixel pitch, sensibilidad |
| Optical Lens / campo de visión | ✅ Nearly identical | FOV difference <3° |
| Señal & Interfaz de alimentación | ✅ Compatible | CVBS and USB output, wide voltage range |
| Image Algorithms | ✅ Enhanced | 18 palettes, NUC + 3DNR + DDE |
| Mechanical Size / Peso | ⚠️ Different | Mini Series smaller and lighter |
| Environmental Tolerance | ⚠️ Slight difference | Operates up to +70°C (vs. +80°C) |
| Velocidad de fotogramas | ⚠️ 50fps vs 60fps | Minor gap for fast motion scenes |
3. Technical Evaluation
los Mini-640-CVBS module meets or exceeds most of the customer’s core performance indicators.
Es 12μm uncooled VOx sensor, ≤40mK thermal sensitivity, y F1.0 athermal lens ensure high-quality thermal imaging even under harsh environmental conditions.
The only parameters that differ slightly are:
- Velocidad de fotogramas: 50fps (instead of 60fps)
- Temperatura de funcionamiento: +70°C (instead of +80°C)
- Physical size: Smaller footprint, longer length
These variations are typically negligible for UAV, seguridad, and inspection applications.
4. Recommended Applications
- UAV / Drone Thermal Imaging
- Ligero y compacto, ideal for airborne integration.
- Security and Surveillance
- Detects human or vehicle heat signatures in total darkness.
- Inspección Industrial
- Used for electrical fault detection and equipment monitoring.
- extinción de incendios / Buscar & Rescate
- Locates hotspots or victims through smoke or fog.
- Outdoor and Wildlife Observation
- Clear thermal visibility in night or low-light conditions.
5. Preguntas frecuentes
1. What does “Athermal Lens” mean?
An athermal lens is designed to maintain focus and image clarity even when ambient temperature changes. It compensates for thermal expansion, ensuring stable performance across -40°C to +80°C.
2. Why is the refresh rate only 25Hz instead of 60Hz?
Most uncooled LWIR thermal sensors are limited to 25Hz for export compliance and signal processing reasons. Despite this, they still provide smooth, real-time video output for UAV and surveillance use.
3. Can this module output HDMI or IP video instead of CVBS?
This version supports analog CVBS output. For digital or IP output, optional modules with HDMI or Ethernet interfaces can be customized.
4. Is this module suitable for drone integration?
Sí. With its lightweight 38g design, wide voltage input (4.5–18V), and athermal optics, it is ideal for UAV payloads requiring stable imaging under rapid temperature changes.
5. What is the detection distance of 1.1km based on?
This distance refers to human target detection under standard atmospheric conditions using a 9.1mm lens. Actual performance may vary depending on humidity, ambient temperature, and target size.
6. Conclusión
los Mini-640-CVBS Thermal Module offers excellent compatibility with the customer’s specified requirements.
Se entrega high thermal sensitivity, bajo consumo de energía, y flexible interfaces in a miniaturizado, diseño robusto.
With its robust VOx detector and athermal optics, it’s a perfect fit for UAV, portable imaging devices, and security systems.
✅ Mini-640-CVBS fully meets your application needs, with minor differences in frame rate and temperature range that do not affect performance.
Haz una pregunta
Gracias por tu respuesta. ✨