Porównanie niechłodzonej kamery termowizyjnej LWIR 640 × 512: Wymagania klienta vs. Mini Series Module
Spis treści
Wstęp
Ostatnio, a customer inquired about a compact thermal imaging module with the following key parameters:
Rozkład: 640×512
Liczba klatek na sekundę: 60fps
Obiektyw: 9.1mm athermal fixed-focus
Pole widzenia (H×V): 48.7°×38.6°
Spectral range: 8-14μm
Thermal sensitivity (NETD): <50mK
Wyjście wideo: CVBS (NTSC)
Napięcie robocze: 4.5–18V
Temperatura robocza: -40°C~+80°C
Wymiary: 25.8×25.8×28mm
Waga: 38sol
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
| Parametr | Wymagania klienta | Vcan2170 (Mini-640-CVBS) | Wynik |
|---|---|---|---|
| Typ detektora | Uncooled (unspecified) | Vanadium Oxide (Vox) uncooled FPA | ✅ Match |
| Rozkład | 640×512 | 640×512 | ✅ Match |
| Rozstaw pikseli | 12um | 12um | ✅ Match |
| Zakres widmowy | 8-14μm | 8-14μm | ✅ Match |
| Obiektyw | 9.1mm athermal fixed-focus | 9.1mm / 13mm F1.0 athermal | ✅ Match |
| Pole widzenia (Pole widzenia) | 48.7°×38.6° | 45.9°×36.9° | ⚠️ Slight difference |
| Liczba klatek na sekundę / Refresh Rate | 60fps / 25Hz | 50fps | ⚠️ Slightly lower |
| Czułość termiczna (NETD) | <50mK | ≤40mK @ F1.0 | ✅ Better |
| Przetwarzanie obrazu | NUC, 3DNR, DDE | NUC, 2D/3DNR, DDE | ✅ Match |
| Display Mode | Biały Gorący | 18 color palettes (includes White Hot) | ✅ More options |
| Video Output | CVBS (NTSC) | CVBS / USB2.0 | ✅ Match (more flexible) |
| Zasilanie | 4.5–18V | 4.5–20V | ✅ Match |
| Zużycie energii | — | <0.75W | ✅ Low power |
| Wymiary | 25.8×25.8×28mm | 17.3×17.3×35.6mm | ⚠️ Different structure |
| Waga | 38sol | 21sol (without lens) | ⚠️ Lighter |
| Temperatura pracy | -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 |
| System telewizyjny | NTSC | Wyjście CVBS ( PAL or NTSC ) | ✅ Match |
2. Summary of Compatibility
| Kategoria | Zgodność | Comments |
|---|---|---|
| Core Imaging Performance | ✅ Fully compatible | Same resolution, pixel pitch, wrażliwość |
| Optical Lens / Pole widzenia | ✅ Nearly identical | FOV difference <3° |
| Sygnał & Interfejs zasilania | ✅ Compatible | CVBS and USB output, wide voltage range |
| Image Algorithms | ✅ Enhanced | 18 palettes, NUC + 3DNR + DDE |
| Mechanical Size / Waga | ⚠️ Different | Mini Series smaller and lighter |
| Environmental Tolerance | ⚠️ Slight difference | Operates up to +70°C (vs. +80°C) |
| Liczba klatek na sekundę | ⚠️ 50fps vs 60fps | Minor gap for fast motion scenes |
3. Technical Evaluation
Plik Mini-640-CVBS module meets or exceeds most of the customer’s core performance indicators.
Jego 12μm uncooled VOx sensor, ≤40mK thermal sensitivity, i F1.0 athermal lens ensure high-quality thermal imaging even under harsh environmental conditions.
The only parameters that differ slightly are:
- Liczba klatek na sekundę: 50fps (instead of 60fps)
- Temperatura robocza: +70°C (instead of +80°C)
- Physical size: Smaller footprint, longer length
These variations are typically negligible for UAV, bezpieczeństwo, and inspection applications.
4. Recommended Applications
- UAV / Drone Thermal Imaging
- Lightweight and compact, ideal for airborne integration.
- Bezpieczeństwo i nadzór
- Detects human or vehicle heat signatures in total darkness.
- Inspekcja Przemysłowa
- Used for electrical fault detection and equipment monitoring.
- Gaszenie pożarów / Szukanie & Ratunek
- Locates hotspots or victims through smoke or fog.
- Obserwacja na świeżym powietrzu i dzikiej przyrody
- Clear thermal visibility in night or low-light conditions.
5. Często zadawane pytania
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?
tak. 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. Wniosek
Plik Mini-640-CVBS Thermal Module offers excellent compatibility with the customer’s specified requirements.
It delivers high thermal sensitivity, niskie zużycie energii, i flexible interfaces in a zminiaturyzowany, wytrzymała konstrukcja.
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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