仪器对比
关注
CHEM4-UV-FIBER分光光度计系统可覆盖200-885nm的光谱范围，光学分辨率为1.0 nm(FWHM)，可在1秒内捕获3648像素的数据。它是进行相对光强和辐射测量的理想工具。
CHEM4-UV-FIBER分光光度计系统由USB4000光谱仪和相关附件组成，来进行吸光度测量。这些可进行吸收测量的附件包括ISS-UV-VIS集成取样系统、一个300μm的抭负感作用光纤与一个1-cm样品支架。
基于光纤的系统的优越性在于其灵活性。根据测量的要求，还可以添加反射型光纤探头和浸入型光纤探头配件。
产品特点：
- 全集成、预配置的系统，测量波长范围200-885nm，光学分辨率为1.0 nm(FWHM)
- 体积小，适用于实验室和教学使用
- 灵活的光纤的系统，可方便地添加配件
- 集成了氘-钨卤组合式光源和样品支架
- 吸光率小至0.01
- 使用USB 2.0接头，可快速将光谱仪与计算机相连
SPECIFICATOINS
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Physical
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Spectrometer dimensions:
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89.1 mm x 63.3 mm x 34.4 mm
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Spectrometer weight:
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190 grams
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Light source dimensions:
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198 mm x 104.9 mm x 40.9 mm
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Light source weight:
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400 g
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Detector Specifications
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Detector:
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Toshiba TCD1304AP Linear CCD array
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Pixels:
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3648 pixels
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Pixel size:
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8 μm x 200 μm
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Pixel well depth:
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100,000 electrons
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Signal-to-noise ratio:
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300:1 (at full signal)
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A/D resolution:
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16 bit
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Corrected linearity:
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>99.8%
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Sensitivity:
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130 photons/count at 400 nm; 60 photons/count at 600 nm
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Optical Bench
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Design:
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f/4, Asymmetrical crossed Czerny-Turner
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Focal length:
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42 mm input; 68 mm output
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Entrance aperture:
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25 µm wide slit
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Grating:
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Grating #1
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OFLV filter:
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OFLV-200-850
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UV enhanced window:
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Yes, UV4
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Fiber optic connector:
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SMA 905 to 0.22 numerical aperture single-strand optical fiber
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Spectroscopic
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Wavelength range:
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200-885 nm
(The actual range typically exceeds what's listed here. The range listed is where you will see changes as small as 0.01 absorbance units.) |
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Optical resolution:
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1.0 nm FWHM
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Signal-to-noise ratio:
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300:1 (at full signal)
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A/D resolution:
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16 bit
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Dark noise:
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50 RMS counts
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Integration time:
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3.8 ms to 10 seconds
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Dynamic range:
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2 x 108 (system), 1300:1 for a single acquisition
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Stray light:
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<0.05% at 600 nm; 0.10% at 435 nm
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Light Source/Sample Holder
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Power consumption:
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420 mA @ 12 VDC; external power supply (included)
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Pathlength:
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1 cm
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Cuvette shape:
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Square
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Light source:
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Deuterium tungsten
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"Z" dimension:
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15 mm
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Bulb life (hours):
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800 deuterium; 2,000 tungsten
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Time to stabilized output:
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~30 minutes
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Optical Fiber
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Optical fiber:
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P300-1-SR; 300 μm diameter, solarization resistant
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Electronics
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Power consumption:
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250 mA @ 5 VDC
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Data transfer speed:
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Full scans to memory every 5 ms with USB 2.0 port, 18 ms with USB 1.1 port
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Inputs/Outputs:
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Yes, 8 onboard digital user-programmable GPIOs
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Analog channels:
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No
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Auto nulling:
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Yes
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Breakout box compatible:
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Yes, HR4-BREAKOUT
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Trigger modes:
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4 modes
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Strobe functions:
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Yes
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Connector:
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22-pin connector
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Computer
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Operating systems:
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Windows 98/Me/2000/XP, Mac OS X and Linux with USB port; Any 32-bit Windows OS with serial port
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Computer interfaces:
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USB 2.0 @ 480 Mbps (USB1.1 compatible); RS-232 (2-wire) @ 115.2 K baud
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Peripheral interfaces:
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SPI (3-wire); I2C inter-integrated circuit
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