DTR2000 Portable Raman Spectrometer
GENERAL DESCRIPTION
DTR2000 portable Raman spectrometer is suitable for field operation. The outstanding reliability makes the detection result much accurate. The excellent low stray light conditions that enable the spectrometer has a wide range of application, especially in the biochemical analyzer, food safety, pharmaceutical engineering. The multi-function software facilitated the spectral analysis process in application. The remote experiment through internet access makes the bald test item much easier.
FEATURES
1.linear CCD with TEC cooling;
2.low noise circuit;
3.Powerful embedded software;
4.Fluorescent background eliminate;
5.Peak searching and indicating;
6.10.1’’ LCD;
7.Android Operation System;
8.USB 2.0;
9.Touch screen and Keyboard input;
10.Friendly HMI;
11.Battery Endurance > 5 hours;
12.Remote control via LAN;
13.IP67 case;
APPLICATIONS
1.Biological science
2.Pharmaceutical engineering
3.Forensic analysis
4.Agriculture and food safety
5.Gemstone
6.Environmental science
1 Specifications
DTR2000 System |
|
Interface |
USB 2.0/LAN |
OS |
Android 4.4.2 |
Battery endurance |
>5 h |
Integration time |
4ms - 120s |
Supply voltage |
DC 19V(+/-5%) |
Operating temperature |
5~40 ℃ |
Operating humidity |
< 95% |
Size (L*W*H) |
|
Weight |
7 Kg |
Reliability |
|
Spectral stability |
σ/μ < 0.5% (COT 8 hours) |
Variation of Spectral intensity in 5 ~ 40 ℃ |
<±5% |
Optics Parameter |
|
Spectral region |
250-2400 cm-1 |
Spectral resolution |
6 cm-1 |
Signal-to-Noise |
>200:1 (918 cm-1 of Acetonitrile,10s accumulation, 200mW) |
50 μm |
|
Optical system |
f/4 Crossed Symmetrical Czerny-Turner |
Focal length |
98 mm for incidence and output |
Detector |
|
Type |
|
Detectable range |
|
Effective pixel |
3648 |
Dynamic range |
1300:1 |
Pixel dimension |
8μm×200μm |
Full well capacity |
100 Ke- |
Sensitivity |
130 Photon @ 400 nm; 60 Photon @ 600 nm |
Exciting Laser |
|
Center Wavelength |
785nm (+/-1nm) |
FWHM |
0.1 nm |
Output power |
≥450 mW |
Power stability |
σ/μ <±0.2% |
Raman Probe |
|
Working distance |
6 mm |
Rayleigh scattering resistance |
OD>8 |
Numerical Aperture |
0.3 |
Aperture |
7mm |
2 Optical Performance
2.1 General spectral performance
Excited laser intensity: 200 mW
Integrate time: 10 s
Boxes car: 3 times
Spectral range: 250-2400 cm-1
918 cm-1 FWHM: 9 cm-1
918 cm-1 intensity: 28886 count
Noise: 89 count
S/N: 324
Fig. 2.1 Raman spectra of acetonitrile
2.2 Spectral Resolution
2.2.1 Raman spectral of Tylenol
Excited laser intensity: 200 mW
Integrate time: 10 s
Boxes car: 1 time
Raman spectra of Tylenol showed the resolution condition in the long wavelength region. That is better than 6 cm-1.
Fig.2.2 Raman spectrum of Tylenol,the vibration mode 1610/1615 cm-1 can be resolved.
2.2.2 Raman spectral of petrol
Excited laser intensity: 200 mW
Integrate time: 10 s
Boxes car: 1 time
Raman spectra of petrol 93# showed the resolution condition in the short wavelength region.
Fig.2.3 Raman spectrum of petrol 93#, the vibration mode 723/732/742cm-1 can be resolved.
3 Reliability
Figure 3.1 and Figure 3.2 showed the temperature reliability testing results of fives DTR2000 portable Raman spectrometers. The testing temperature range was from 5 oC to 40 oC. The spectrometer was kept more than 1 hour at every temperature spots. Acetonitrile was used as the standard sample in the testing. The testing results were calculated using 918 cm-1 of acetonitrile. The wavenumber shift was 1 cm-1 or less(as show in Fig. 3.1). The peak intensity variation was less than 10% (as show in Fig. 4).
Fig. 3.1 Wavenumber shift results testing from 5 oC to 40 oC of fives DTR2000 portable Raman spectrometers
Fig. 3.2 Intensity variation testing from 5 oC to 40 oC of fives DTR2000 portable Raman spectrometers
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