uniSPEC

uniSPEC1.7HSI uniSPEC2.2HSILLA Instruments GmbHJustus-von-Liebig-Str. 9/11 Tel.: +49 30 6290790-0 www.lla-instruments.com12489 Berlin Fax: +49 30 6290790-10 mail@lla.deHYPERSPECTRAL NIR CAMERASImagingAnalyticalProcessmeasurementuniSPEC1.7HSI & uniSPEC2.2HSIThe uniSPEC1.7HSI and uniSPEC2.2HSI are compact NIR hyperspectral camera systems for the simultaneous analytical evaluation of up to 320 adjacent measurement tracks. A distortion free projecting optic ensures a high spec tral and spatial resolution for the measurement of a material stream or for a scan of a single sample.Due to the high frames rates achieved by the camera, the analysis and identification of smallest particles is possible at high transport speeds. Also inhomogeneities of complex material mixtures can be evaluated.The series uniSPECx.xHSI can be used for analytical tasks in a variety of application fields.A camera objective captures the reflection of the to be measured objects and projects them on to the entrance slit of a spectrograph. Passing the spectrograph, the spa-tial information is preserved across the entrance slit height. Therefore for each image point along the measurement line a complete NIR spectrum is recorded.A spatially resolved analysis of the material composition across the object surface is possible by a line scan of the object. The high spatial resolution permits the identifica-tion of small parts in a material stream.The camera is offered together with an illumination unit PMAmsi and an industrial PC with control- and analysis software (figure 1).Hyperspectral camerasPurposeSetupApplicationsKey characteristics ¯ High resolution 2D-spectrograph with optically cor-rected focal plan image ¯ Camera with cooled InGaAs detector array of 320 x 256 pixels ¯ Comprehensive tools for setup and service ¯ Windows XP Embedded based industrial PC ¯ Chemometrical software for quantitative and qualita-tive analysis includedFood industry ¯ Quality control of food (e.g. grain, milk products, meat, vegetables, feed) ¯ Identification of impurities (production remains or pack-ing material, e.g. paper, cardboard, plastics or pedun-cles and leaves)Plastic industry ¯ Composition monitoring in manufacturing process (analysis of ingredients and mixture ratio)Paper industry ¯ Analysis of stickies in paper ¯ Analysis of paper ingredients for quality control ¯ Determination of hardening and thickness of UV cured coatingsMineral processing industry ¯ Identification of mineral raw materials with sorting of value rocks and waste rocks, e.g. separation of dolo-mite and limestoneHyperspectral cameraIllumination unitConveyor beltfigure 1: Setup illustrationuniSPEC1.7HSI & uniSPEC2.2HSIControl softwareAnalytical softwareQuality control applicationThe series uniSPECx.xHSI is delivered with a compre-hensive set of software. The control software permits ad-justing of camera para meters and monitoring of camera status, spectral calibration as well as e.g. visualisation of measurement results. Interfaces for analytical software and plant control (PLC) are included. Display of camera picture (figure 2) and recorded spectra (figure 3):1100 nm Spectral range 1800 nm190Spatial tracks140For the quantitative and qualitative evaluation multivari-ate analysis tools are provided that include a number of mathematical functions (amongst others: calculation of band integrals, determination of signal noise, differ-entiation, peak detection, extremum, PLS, PCR, Fuzzy, neuronal networks). All qualitative and quantitative evalu-ation results may be combined. The results may further be grouped to objects. The identification and analysis results can be presented statistically and visualised in pseudo col-our images.By a pseudo colour image a precise image is generated, containing the overall shape of the meat piece as well as the distribution of the fat (figure 4). The penetration depth of the radiation depends on the chemical composition of the samples under analysis. For meat it is maximal 5 mm. The spatial resolution on a 500 mm wide conveyor belt is 1,5 x 1,5 mm2. ? Low and high fat contents absorption peaks, 2. derivation? ? figure 3: Recorded spectrafigure 2: Camera picture0 % 50 %Fat contentsfigure 4: Example for application in food analysis, Determination of fat contents in meatPP-MG-uniSPECx.xHSI-1308Justus-von-Liebig-Str. 9/11 Tel.: +49 30 6290790-0 www.lla-instruments.com12489 Berlin Fax: +49 30 6290790-10 mail@lla.deProduct photos by: LLA Instruments GmbHTechnical dataImaging spectrographOptical arrangement Reflection gratingSpectral range 0,95 µm – 1,7 µm 1,25 µm – 2,17 µmDispersion 120,7 nm/ mmSpectral resolution < 8 nmNumeric aperture F/2.4Objective NIR-corrected, Zeiss F2.4 / 10 mm2D spectral camera: uniSPECSensor InGaAs photo diodes array, thermo electric cooledImage frame (spatial) x (spectral) 320 pixel x 256 pixelDispersion 3,61 nm/ pixelDigital resolution / grey scale levels 14 bitExposure time 100 µs – 5 sFrame rate Min. 0,2 max. 270 (optional 310) frames/sROI mode 400 Hz – 5 kHzCooling Heat pipes, convective coolingObjective connection Standard C-mountChassis dimensions (L x W x H) 295 mm x 345 mm x 166 mmWeight 16,8 kgPower supply 24 VDC (20..30 VDC), 2,5 APower consumption < 70 WOperating temperature +5 to +35° CRelative humidity 10 % to 80 %, no condensationIllumination unit: PMAmsiSetup Double sided illumination, angle of incidence 15 resp. 22°Illumination area 300 mm measurement distance 500 mm measurement distance25 mm x max. 2 m30 mm x max. 2 mLamps 120 W halogen pen lights R7s 118 mmPower supply (only uniSPEC2.2HSI) Input OutputRegulated DC power supply230 VAC -10 % to +15 % 50..60 Hz80 VDC to 230 VDC/ 200 W to 500 WInstallation detailsDistance camera – object(objective F2.4 / 10 mm)Field of view (FOV) x 1,05Spatial resolution Standard at 1 m FOV (50 µm slit) Minimal at 160 mm FOV (30 µm slit)3,2 mm x 5,2 mm0,5 mm x 0,5 mm