Soğutmasız 640×512 LWIR Termal Kamera Karşılaştırması: Müşteri Gereksinimi vs. Mini Series Module
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Son zamanlarda, a customer inquired about a compact thermal imaging module with the following key parameters:
çözüm: 640×512
Kare hızı: 60fps
Objektif: 9.1mm athermal fixed-focus
görüş açısı (H×V): 48.7°×38.6°
Spectral range: 8-14μm
Thermal sensitivity (NETD): <50mK
Video çıkışı: CVBS (NTSC)
Çalışma gerilimi: 4.5–18V
Operating temperature: -40°C~+80°C
boyutlar: 25.8×25.8×28mm
Ağırlık: 38g
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 modeli.
1. Specification Comparison
| Parametre | Müşteri Gereksinimi | Vcan2170 (Mini-640-CVBS) | Result |
|---|---|---|---|
| Dedektör Tipi | Uncooled (unspecified) | Vanadyum Oksit (VOx) uncooled FPA | ✅ Match |
| çözüm | 640×512 | 640×512 | ✅ Match |
| Piksel Aralığı | 12μm | 12μm | ✅ Match |
| Spektral Aralık | 8-14μm | 8-14μm | ✅ Match |
| Objektif | 9.1mm athermal fixed-focus | 9.1mm / 13mm F1.0 athermal | ✅ Match |
| Görüş Alanı (görüş açısı) | 48.7°×38.6° | 45.9°×36.9° | ⚠️ Slight difference |
| Kare Hızı / Refresh Rate | 60fps / 25Hz. | 50fps | ⚠️ Slightly lower |
| Termal Hassasiyet (NETD) | <50mK | ≤40mK @ F1.0 | ✅ Better |
| Görüntü İşleme | NUC, 3DNR, DDE | NUC, 2D/3DNR, DDE | ✅ Match |
| Display Mode | White Hot | 18 color palettes (includes White Hot) | ✅ More options |
| Video çıkışı | CVBS (NTSC) | CVBS / USB2.0 | ✅ Match (more flexible) |
| Güç kaynağı | 4.5–18V | 4.5–20V | ✅ Match |
| Güç Tüketimi | — | <0.75W | ✅ Low power |
| boyutlar | 25.8×25.8×28mm | 17.3×17.3×35.6mm | ⚠️ Different structure |
| Ağırlık | 38g | 21g (merceksiz) | ⚠️ Lighter |
| Çalışma Sıcaklığı | -40°C~+80°C | -40°C~+70°C | ⚠️ 10°C lower upper limit |
| Detection / Recognition / ID Range | 1.1km / 250M / 170M | Not specified | ⚠️ Depends on lens |
| Depth of Field | 1.69m–∞ | Not specified | ⚠️ Not defined |
| TV Sistemi | NTSC | CVBS çıkışı ( PAL or NTSC ) | ✅ Match |
2. Summary of Compatibility
| Kategori | Uyumluluk | Comments |
|---|---|---|
| Core Imaging Performance | ✅ Fully compatible | Same resolution, pixel pitch, hassasiyet |
| Optical Lens / görüş açısı | ✅ Nearly identical | FOV difference <3° |
| Sinyal & Güç Arayüzü | ✅ Compatible | CVBS and USB output, wide voltage range |
| Image Algorithms | ✅ Enhanced | 18 palettes, NUC + 3DNR + DDE |
| Mechanical Size / Ağırlık | ⚠️ Different | Mini Series smaller and lighter |
| Environmental Tolerance | ⚠️ Slight difference | Operates up to +70°C (vs. +80°C) |
| Kare Hızı | ⚠️ 50fps vs 60fps | Minor gap for fast motion scenes |
3. Technical Evaluation
The Mini-640-CVBS module meets or exceeds most of the customer’s core performance indicators.
Onun 12μm uncooled VOx sensor, ≤40mK thermal sensitivity, ve F1.0 athermal lens ensure high-quality thermal imaging even under harsh environmental conditions.
The only parameters that differ slightly are:
- Kare hızı: 50fps (instead of 60fps)
- Operating temperature: +70°C (instead of +80°C)
- Physical size: Smaller footprint, longer length
These variations are typically negligible for UAV, güvenlik, and inspection applications.
4. Recommended Applications
- İHA / Drone Thermal Imaging
- Lightweight and compact, ideal for airborne integration.
- Security and Surveillance
- Detects human or vehicle heat signatures in total darkness.
- Endüstriyel Muayene
- Used for electrical fault detection and equipment monitoring.
- İtfaiye / Arama & Kurtarmak
- Locates hotspots or victims through smoke or fog.
- Outdoor and Wildlife Observation
- Clear thermal visibility in night or low-light conditions.
5. SSS
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?
Evet. 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. Çözüm
The Mini-640-CVBS Thermal Module offers excellent compatibility with the customer’s specified requirements.
Sunar high thermal sensitivity, Düşük güç tüketimi, ve flexible interfaces bir minyatürleştirilmiş, sağlam tasarım.
With its robust VOx detector and athermal optics, it’s a perfect fit for İHA'lar, 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.
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