Perbandingan Kamera Termal 640×512 LWIR Tanpa Pendingin: Persyaratan Pelanggan vs. Mini Series Module
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Baru-baru ini, a customer inquired about a compact thermal imaging module with the following key parameters:
Resolusi: 640×512
Kecepatan bingkai: 60fps
Lensa: 9.1mm athermal fixed-focus
FOV (H×V): 48.7°×38.6°
Spectral range: 8-14μm
Thermal sensitivity (NETD): <50mK
Keluaran video: CVBS (NTSC)
Tegangan operasi: 4.5–18V
Suhu pengoperasian: -40°C~+80 °C
Ukuran: 25.8×25.8×28mm
Berat: 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 model.
1. Specification Comparison
| Parameter | Persyaratan Pelanggan | Vcan2170 (Mini-640-CVBS) | Hasil |
|---|---|---|---|
| Tipe Detektor | Uncooled (unspecified) | Vanadium Oxide (Suara) uncooled FPA | ✅ Match |
| Resolusi | 640×512 | 640×512 | ✅ Match |
| Pitch Piksel | 12m | 12m | ✅ Match |
| Rentang Spektral | 8-14μm | 8-14μm | ✅ Match |
| Lensa | 9.1mm athermal fixed-focus | 9.1mm / 13mm F1.0 athermal | ✅ Match |
| Bidang Pandang (FOV) | 48.7°×38.6° | 45.9°×36.9° | ⚠️ Slight difference |
| Kecepatan Bingkai / Refresh Rate | 60fps / 25Hz | 50fps | ⚠️ Slightly lower |
| Sensitivitas Termal (NETD) | <50mK | ≤40mK @ F1.0 | ✅ Better |
| Pemrosesan Gambar | NUC, 3DPR, DDE | NUC, 2D/3DNR, DDE | ✅ Match |
| Modus Tampilan | Putih Panas | 18 color palettes (includes White Hot) | ✅ More options |
| Keluaran Video | CVBS (NTSC) | CVBS / USB2.0 | ✅ Match (more flexible) |
| Catu Daya | 4.5–18V | 4.5–20V | ✅ Match |
| Konsumsi Daya | — | <0.75W | ✅ Low power |
| Ukuran | 25.8×25.8×28mm | 17.3×17.3×35.6mm | ⚠️ Different structure |
| Berat | 38g | 21g (without lens) | ⚠️ Lighter |
| Suhu Operasional | -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 |
| Sistem TV | NTSC | keluaran CVBS ( PAL atau NTSC ) | ✅ Match |
2. Summary of Compatibility
| Kategori | Kesesuaian | Komentar |
|---|---|---|
| Core Imaging Performance | ✅ Fully compatible | Same resolution, pixel pitch, kepekaan |
| Optical Lens / FOV | ✅ Nearly identical | FOV difference <3° |
| Sinyal & Antarmuka Daya | ✅ Compatible | CVBS and USB output, wide voltage range |
| Image Algorithms | ✅ Enhanced | 18 palettes, NUC + 3DPR + DDE |
| Mechanical Size / Berat | ⚠️ Different | Mini Series smaller and lighter |
| Environmental Tolerance | ⚠️ Slight difference | Operates up to +70°C (vs. +80°C) |
| Kecepatan Bingkai | ⚠️ 50fps vs 60fps | Minor gap for fast motion scenes |
3. Technical Evaluation
Itu Mini-640-CVBS module meets or exceeds most of the customer’s core performance indicators.
Dia 12μm uncooled VOx sensor, ≤40mK thermal sensitivity, dan F1.0 athermal lens ensure high-quality thermal imaging even under harsh environmental conditions.
The only parameters that differ slightly are:
- Kecepatan bingkai: 50fps (instead of 60fps)
- Suhu pengoperasian: +70°C (instead of +80°C)
- Physical size: Smaller footprint, longer length
These variations are typically negligible for UAV, keamanan, and inspection applications.
4. Recommended Applications
- pesawat tak berawak / Drone Thermal Imaging
- Ringan dan kompak, ideal for airborne integration.
- Security and Surveillance
- Detects human or vehicle heat signatures in total darkness.
- Inspeksi Industri
- Used for electrical fault detection and equipment monitoring.
- Pemadam kebakaran / Pencarian & Menyelamatkan
- Locates hotspots or victims through smoke or fog.
- Outdoor and Wildlife Observation
- Clear thermal visibility in night or low-light conditions.
5. FAQ
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?
iya nih. 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, suhu lingkungan, and target size.
6. Kesimpulan
Itu Mini-640-CVBS Thermal Module offers excellent compatibility with the customer’s specified requirements.
Itu berhasil high thermal sensitivity, konsumsi daya rendah, dan flexible interfaces di sebuah miniatur, desain yang kokoh.
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.
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