Standard optical fiber spectrometer
Model：AvaSpec-ULS2048-USB2
Overview
Avaspec-uls2048 optical fiber spectrometer has the characteristics of high-speed spectrum acquisition and high-resolution. It is very suitable for applications that need fast response or accurate synchronization of external trigger signals. Avaspec-uls2048l spectrometer adopts large pixel size CCD, which has the advantages of higher sensitivity and signal-to-noise ratio. The disadvantage is that its optical resolution is about 20% worse than avaspec-uls2048, and its nonlinearity is also slightly worse.Description
Avaspec-uls2048 optical fiber spectrometer has the characteristics of high-speed spectrum acquisition and high-resolution. It is very suitable for applications that need fast response or accurate synchronization of external trigger signals. Avaspec-uls2048l spectrometer adopts large pixel size CCD, which has the advantages of higher sensitivity and signal-to-noise ratio. The disadvantage is that its optical resolution is about 20% worse than avaspec-uls2048, and its nonlinearity is also slightly worse.
Specifications
| Optical bench | ULS symmetrical Czerny-Turner, 75 mm focal length |
| Wavelength range | 200-1100 nm |
| Resolution | 0.05-20 nm (depending on configuration, FWHM) |
| Stray light | 0.06%-0.19% (depending on grating) |
| Sensitivity | 310,000 counts/µW per ms integration time |
| Detector | CCD linear array, 2048 pixels |
| Signal/Noise | 200:1 |
| AD converter | 16-bit, 2 MHz |
| Integration time | 1.05 ms - 10 minutes |
| Sample speed | 1.05 ms/scan (store to RAM) |
| Data transfer | 1.8 ms/scan (USB2) / 430 ms/scan (RS-232) |
| Interface | USB 2.0 high-speed 480 Mbps; RS-232 115.2 kbps |
| Digital I/O | HD-26: 2 Analog in, 2 Analog out, 3 Digital in, 12 Digital out, trigger, sync |
| Power supply | USB power 350 mA; or SPU2 external 12VDC 150 mA |
| Dimensions / Weight | 175×110×44 mm (1 channel); 716 g |
Technical Data
| 光谱仪型号 | AvaSpec-ULS2048-USB2 | AvaSpec-ULS2048L-USB2 |
| 光学平台 | 超低杂散光型 Czerny-Turner 对称式光路，75 mm 焦距 | |
| 波长范围 | 200 - 1100 nm | |
| 光学分辨率（FWHM） | 0.05 - 20 nm，与光栅类型和狭缝宽度有关 | |
| 杂散光 | 0.04 - 0.1%，与光栅类型有关 | |
| 灵敏度（单位：计数 / 微瓦 每毫秒积分时间） | 310,000 | 470,000 |
| 探测器类型 | SONY ILX-554B, 2048 像素 CCD 阵列 | SONY ILX-511, 2048 像素 CCD 阵列 |
| 像素尺寸（W x H） | 14 x 56 μm | 14 x 200 μm |
| 信噪比 | 200:01:00 | 300:01:00 |
| AD 转换器 | 16 位 , 2 MHz | |
| 积分时间 | 1.1 ms - 10 minutes | |
| 接口 | USB 2.0 高速接口 , 480 Mbps | |
| RS-232, 115.200 bps | ||
| 采样速度（带板卡平均功能） | 1.1 ms / 每次采样 | |
| 数据传输速度 | 1.8 ms / 每次采样 (USB2) | |
| 430 ms / 每次采样 (RS-232) | ||
| 数字 IO 接口 | HD-26 接口， 2 针模拟输入 , 2 针模拟输出 , 3 针数字输入 , 12 针数字输出 , 触发 , 同步 | |
| 供电形式 | 默认 USB 供电 , 450 mA , SPU2 外部供电 12 VDC, 150 mA | |
| 外型尺寸，重量 | 175 x 110 x 44 mm, 855 g | |