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Xenics高速制冷短波红外相机 - Cheetah系列是基于一个内部开发的制冷型InGaAs探测器，分辨率为640 x 512像素，像元尺寸20um。配有单级TE制冷探测器，提供400hz、800Hz或1700hz的高帧率；配备TE3制冷探测器的相机提供高达110hz的帧率。相机接口为Cameralink，可见短波红外(vSWIR)选项可用于扩展到可见波长波段。
高速短波红外相机产品特性：
1、分辨率：640×512；
2、像元尺寸：20μm；
3、帧速可达1700Hz；
4、低暗电流；
5、Cameralink接口。
高速短波红外相机参数：
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芯片参数 |
Cheetah-640-CL |
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芯片类型 |
InGaAs Focal Plan Array (FPA) ROIC with CTIA ology |
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分辨率 |
640 x 512 |
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像素尺寸 |
20 μm x 20 μm |
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光谱范围 |
0.9 μm to 1.7 μm (VisNIR optional 0.4 to 1.7 μm) |
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量子效率 |
80% |
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像素转化率 |
> 99 % |
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芯片尺寸 |
12.8 mm x 10.2 mm; 16.4 mm diagonal |
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制冷方式 |
TE1-cooled |
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ROIC噪声 |
High gain: 60 e-; low gain: 400 e- |
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暗电流 |
0.19 x 106e-/s/pixel or 30 fA @ 200 mV bias at 288 K |
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满阱容量 |
High gain: 80 x 10x3 e-; low gain: 1.1 x 10x6 e- |
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增益 |
High gain: 20 μV/e- |
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增益 |
Low gain: 1.6 μV/e- |
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相机参数 |
Cheetah-640-CL 400 Hz |
Cheetah-640-CL 800 Hz |
Cheetah-640-CL 1730 Hz |
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镜头 |
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焦距 |
25 mm f/2.1 (SWIR) |
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镜头接口 |
C-mount - Spectrometer holes |
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图像性能 |
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大帧速 |
444 Hz |
865 Hz |
1730 Hz |
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集成类型 |
Snapshot |
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读出模式 |
Integrate Then Read (ITR) |
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读出模式 |
Integrate While Read (IWR) |
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感兴趣区域 |
Minimum size 32 x 4 |
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曝光时间 |
1 μs up to 40 ms @ 25°C sensor temperature (high gain mode); or up to 100 ms @ 268K sensor temperature (high gain mode) |
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增益模式 |
High gain and low gain |
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片上图像处理 |
Single Non-Uniformity correction (NUC) can be uploaded |
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ADC |
14 bit |
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接口 |
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相机接口 |
Cameralink (serial LVDS line on Cameralink port 1) |
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图像采集 |
base Cameralink (12 bit) |
Medium CL (12 bit) |
Full Cameralink (8 bit), 2 x medium Cameralink (12 bit) |
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触发 |
Trigger in and out (3.3 V CMOS) |
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供电 |
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功率 |
< 4 W without TEC operation; Max. 25 W with TE-cooling |
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供电 |
12 V |
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物理特性 |
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制冷方式 |
Forced air cooling |
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工作温度 |
0°C to 50°C |
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外形尺寸 |
140 x 135 x 90 |
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重量 |
2 kg |
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