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USB4000-VIS-NIR微型光纖光譜儀
USB4000-VIS-NIR微型光纖光譜儀可覆蓋350-1000nm的波長(zhǎng)范圍，采用3648像素的東芝線性CCD陣列，以增強(qiáng)信噪比和電子特性控制。
USB4000-VIS-NIR光譜儀采用"USB"光學(xué)平臺(tái)。使用可變長(zhǎng)通濾光片消除二級(jí)和三級(jí)衍射的影響，配有25um的入射狹縫以及探測(cè)器紫外增強(qiáng)。波長(zhǎng)范圍達(dá)到350-1000nm，光學(xué)分辨率為大約1.5nm(FWHM)。
自己去配置USB4000
查看USB4000-UV-VIS |
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可編程微控制器
USB4000-VIS-NIR光譜儀有一個(gè)板載的可編程微控制器可對(duì)光譜儀及其附件進(jìn)行控制。通過22針的接口，您可以進(jìn)行許多操作包括控制外部光源，從外部對(duì)象獲取數(shù)據(jù)。還提供8個(gè)可編程的數(shù)字I/O端口連接到別的設(shè)備。
光學(xué)特性
USB4000-VIS-NIR光譜儀采用高性能的3648像素線性CCD陣列探測(cè)器，整個(gè)光學(xué)平臺(tái)只有手掌那么大。光譜儀接收來自光纖的光能通過固定的狹縫和光柵投射到探測(cè)器上，可提供波長(zhǎng)范圍在350-1000nm的光譜。
模塊化設(shè)計(jì)
當(dāng)您購(gòu)買了USB4000-VIS-NIR光譜儀后，您可以方便的從海洋光學(xué)的生產(chǎn)線中尋找您所需要的光學(xué)附件。大多數(shù)的附件都采用SMA905的接口，您只要簡(jiǎn)單地旋出連接器就可以更換或添加采樣附件，包括光源，樣品池，濾光片，流通池，光纖探頭，傳感器，聚焦鏡，衰減器，漫反射標(biāo)準(zhǔn)，積分球和光纖跳線。
即插即用
USB4000-VIS-NIR光譜儀可通過USB2.0接口或RS-232串口連接到電腦，PLC和嵌入式系統(tǒng)中。當(dāng)使用串口通訊時(shí)，需要5伏供電。每個(gè)光譜儀都有自己特有的參數(shù)存貯在光譜儀的內(nèi)存中，通過光譜儀軟件可以讀出這些數(shù)據(jù)。
串口操作
當(dāng)使用串口通訊時(shí)，需要5伏供電。光譜儀軟件SpectraSuite并不提供串口的通訊，不過您可以通過串口指令集來編寫您自己控制代碼。
SPECIFICATIONS
| Physical |
| Dimensions: |
89.1 mm x 63.3 mm x 34.4 mm |
| Weight: |
190 grams |
| Detector Specifications |
| Detector: |
Toshiba
TCD1304AP Linear CCD array |
| Detector range: |
200-1100 nm |
| Useable range: |
350-1000 nm |
| Pixels: |
3648
pixels |
| Pixel
size: |
8
μm x 200 μm |
| Pixel
well depth: |
100,000
electrons |
| Signal-to-noise ratio: |
300:1 (at full signal) |
| A/D resolution: |
16
bit |
| Dark noise: |
50 RMS counts |
| Corrected linearity: |
>99.8% |
| Sensitivity: |
130 photons/count at 400 nm; 60 photons/count at 600 nm |
| Optical Bench |
| Design: |
f/4, Asymmetrical crossed Czerny-Turner |
| Focal length: |
42
mm input; 68 mm output |
| Entrance aperture: |
25
um wide slit |
| Grating: |
Grating #3 (blazed at 500 nm) |
| OFLV filter: |
OFLV-350-1000 |
| Fiber optic connector: |
SMA 905 to 0.22 numerical aperture single-strand optical
fiber |
| Spectroscopic |
| Wavelength range: |
350-1000
nm |
| Optical resolution: |
~1.5 nm FWHM |
| Signal-to-noise ratio: |
300:1 (at full signal) |
| A/D resolution: |
16
bit |
| Dark noise: |
50
RMS counts |
| Integration time: |
10
ms - 10 seconds |
| Dynamic range: |
2
x 108 (system), 1300:1 for a single acquisition |
| Stray light: |
<0.05% at 600 nm; 0.10% at 435 nm |
| Electronics |
| Power consumption: |
250 mA @ 5 VDC |
| Data transfer speed: |
Full scans to memory every 4 ms with USB 2.0 port |
| Inputs/Outputs: |
Yes, 8 onboard digital user-programmable GPIOs |
| Breakout box compatible: |
Yes,
with the USB-ADP-BB adapter |
| Trigger modes: |
4 modes |
| Strobe functions: |
Yes |
| Connector: |
22-pin connector |
| Computer |
| Operating systems: |
Windows 98/Me/2000/XP, Mac OS X and Linux with USB port;
Any 32-bit Windows OS with serial port |
| Computer interfaces: |
USB 2.0 @ 480 Mbps (USB1.1 compatible); RS-232 (2-wire) @
115.2 K baud |
| Peripheral interfaces: |
SPI (3-wire); I2C inter-integrated circuit |
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線陣CCD光纖光譜儀
