万喜堂彩票 
万喜堂彩票
此款光谱仪为设计的，单光子响应级别的万喜堂app下载官方入口 超高灵敏度微型光谱仪，由于其采用偏振光学设计，不同于传统的光栅式光谱仪，不需要狭缝，也可不用光纤，使其具有超大的受光面积。因而，此款超高灵敏度光谱仪是用于低光照测量的理想选择，可用于荧光光谱，漫反射光谱，拉曼光谱分析。
万喜堂app下载官方入口 超高灵敏度微型光谱仪的特点：此款光谱仪为设计的，单光子响应级别的万喜堂app下载官方入口 超高灵敏度微型光谱仪，由于其采用偏振光学设计，不同于传统的光栅式光谱仪，不需要狭缝，也可不用光纤，使其具有超大的受光面积。因而，此款超高灵敏度光谱仪是用于低光照测量的理想选择，可用于荧光光谱，漫反射光谱，拉曼光谱分析。
ARCspectro HT is ideal for low light applications or for the spectral analysis of diffusing light sources (or samples). Its unique design permits to gather a maximum of light over a large diffusing surface (several millimeters!) and over a large angle (±10°). This gives a tremendous throughput advantage (~50x more) compared to the most powerful grating spectrometers (also well-known Jaquinot advantage) which are intrinsically limited by a small entrance slit (typically 0.025mm). This makes this unique device ideal for applications were small light intensities has to be analyzed (fluorescence or Raman spectroscopy).
万喜堂app下载官方入口 超高灵敏度微型光谱仪其指标参数如下表所示：
| Features | ARCspectro HT-HR |
| Spectral range | 400 nm – 1050 nm (HT-HR and HT-2D) 900-1700nm (HT-NIR) |
| Signal-to-Noise (single measurement full detector dynamic used, Ratio between the peak value and bottom value of HeNe Spectrum) | 300:1 (Multiplex advantage) |
| Spectral Resolution | < 1 nm @ l = 550 nm (HT-HR model) < 10 nm @ l = 1000 nm (HT-NIR model) |
| Detector type | Silicium CCD front illuminated detector array InGaAs 512 pixels (HT-NIR) 1 stage cooled |
| Full-well detector capacity | 30'000 e- |
| Dark noise | 0.1% of dynamic range |
| Detector sensitivity | ~15 photons per count |
| Relative wavelength fluctuation (measured with HeNe over 1 hour) | <0.01 nm |
| Absolute Wavelength Accuracy | <0.5 nm |
| Operating Temperature | 10°C – 50°C |
| Wavelength Drift with temperature | 0.001nm per °C |
| Measurement time | 1 ms to "infinite" |
| Operating Voltage | USB powered |
| Light guide core diameter (optional) | 4 mm |
| Entrance aperture | 4 mm (Diam.) |
| Communication Interface | USB 2.0 |
| Software Interface | Windows XP, Window7, Labview |
| CCD Readout Sampling rate | 0.5 MHz |
| A/D converter | 16 bits (8-10 bits for HT-2D) |
| Product Dimensions (including electronics) | 15cm x 10cm x10cm |
| Product Weight | 300 g |
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