非制冷 640×512 长波红外热像仪比较: 客户需求对比. Mini Series Module
目录
介绍
最近, a customer inquired about a compact thermal imaging module with the following key parameters:
解决: 640×512
帧率: 60帧率
镜片: 9.1mm athermal fixed-focus
视场角 (H×V): 48.7°×38.6°
Spectral range: 8-14μm
Thermal sensitivity (NETD): <50米克
视频输出: CVBS (NTSC)
工作电压: 4.5–18V
工作温度: -40℃～+80℃
外形尺寸: 25.8×25.8×28mm
重量: 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 模型.
1. Specification Comparison
| 范围 | 客户需求 | Vcan2170 (Mini-640-CVBS) | 结果 |
|---|---|---|---|
| 探测器类型 | Uncooled (unspecified) | 氧化钒 (氧化氧) uncooled FPA | ✅ Match |
| 解决 | 640×512 | 640×512 | ✅ Match |
| 像素间距 | 12微米 | 12微米 | ✅ Match |
| 光谱范围 | 8-14μm | 8-14μm | ✅ Match |
| 镜片 | 9.1mm athermal fixed-focus | 9.1毫米 / 13mm F1.0 athermal | ✅ Match |
| 视野 (视场角) | 48.7°×38.6° | 45.9°×36.9° | ⚠️ Slight difference |
| 帧率 / Refresh Rate | 60帧率 / 25赫兹 | 50帧率 | ⚠️ Slightly lower |
| 热敏度 (NETD) | <50米克 | ≤40mK @ F1.0 | ✅ Better |
| 图像处理 | NUC, 3数字NR, DDE | NUC, 2D/3DNR, DDE | ✅ Match |
| 显示模式 | 白热化 | 18 color palettes (includes White Hot) | ✅ More options |
| 视频输出 | CVBS (NTSC) | CVBS / USB2.0 | ✅ Match (more flexible) |
| 电源 | 4.5–18V | 4.5–20V | ✅ Match |
| 功耗 | — | <0.75W¯¯ | ✅ Low power |
| 外形尺寸 | 25.8×25.8×28mm | 17.3×17.3×35.6mm | ⚠️ Different structure |
| 重量 | 38G | 21G (without lens) | ⚠️ Lighter |
| 工作温度 | -40℃～+80℃ | -40℃~+70℃ | ⚠️ 10°C lower upper limit |
| 检测 / Recognition / ID Range | 1.1千米 / 250米 / 170米 | Not specified | ⚠️ Depends on lens |
| Depth of Field | 1.69m–∞ | Not specified | ⚠️ Not defined |
| 电视系统 | NTSC | CVBS输出 ( PAL or NTSC ) | ✅ Match |
2. Summary of Compatibility
| 类别 | 兼容性 | 评论 |
|---|---|---|
| Core Imaging Performance | ✅ Fully compatible | Same resolution, pixel pitch, 灵敏度 |
| Optical Lens / 视场角 | ✅ Nearly identical | FOV difference <3° |
| 信号 & 电源接口 | ✅ Compatible | CVBS and USB output, wide voltage range |
| Image Algorithms | ✅ Enhanced | 18 palettes, NUC + 3数字NR + DDE |
| Mechanical Size / 重量 | ⚠️ Different | Mini Series smaller and lighter |
| Environmental Tolerance | ⚠️ Slight difference | Operates up to +70°C (与. +80℃) |
| 帧率 | ⚠️ 50fps vs 60fps | Minor gap for fast motion scenes |
3. Technical Evaluation
该 Mini-640-CVBS module meets or exceeds most of the customer’s core performance indicators.
它是 12μm uncooled VOx sensor, ≤40mK thermal sensitivity, 和 F1.0 athermal lens ensure high-quality thermal imaging even under harsh environmental conditions.
The only parameters that differ slightly are:
- 帧率: 50帧率 (instead of 60fps)
- 工作温度: +70℃ (instead of +80°C)
- Physical size: Smaller footprint, longer length
These variations are typically negligible for UAV, 安全, and inspection applications.
4. Recommended Applications
- 无人机 / Drone Thermal Imaging
- Lightweight and compact, ideal for airborne integration.
- 安全与监控
- Detects human or vehicle heat signatures in total darkness.
- 工业检验
- Used for electrical fault detection and equipment monitoring.
- 消防 / 搜索 & 救援
- Locates hotspots or victims through smoke or fog.
- Outdoor and Wildlife Observation
- Clear thermal visibility in night or low-light conditions.
5. 常见问题解答
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?
是. 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, 环境温度, and target size.
6. 结论
该 Mini-640-CVBS Thermal Module offers excellent compatibility with the customer’s specified requirements.
It delivers high thermal sensitivity, low power consumption, 和 flexible interfaces in a 小型化, 坚固耐用的设计.
With its robust VOx detector and athermal optics, it’s a perfect fit for 无人机, 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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