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Scattering Photometer

Spectral Light Detection

Model: HO-IAD-SG-02
Research Oriented
Mutli angle spectral measurement

Spectrometer (Model : HO-IAD-SG-01) has been developed for measuring the intensity of light spectrum (ranging from 350 - 1050nm) scattered by particles. The instrument is designed for has been developed by Holmarc for. It is a precision instrument designed for research applications where spectroscopic measurements need to be carried out from scattered light. Goniometer based design helps in multi angle spectral measurements.

A 50W fiber coupled quartz halogen lamp is used as the light source for scattering measurements. Light from the optical fiber is collimated using a precision lens system and directed to a linear polarizer and then into a scattering compartment / sample chamber containing the particles under study. The scattered light is focused onto a fiber optic cable connected to a compact CCD spectrometer. Software provided with the spectrometer analyze the amount of scattered light at different wavelength and position. The motorized rotation stage helps to take the reading at different angles. The entire operation is automated through a personal computer. Custom developed software and interfacing electronics are supplied along with the system.



        Resolution :     0.05 degree
        Maximum Speed :     10 degree / sec
        Traverse :     280º
        Actuator :     Stepper Motor    ( DPM60SH86 - 2008AF )
        Load Capacity :     10 Kg
        Material :     Aluminium
        Turn Table Dimension :     500 x 500 x 65 mm
        Spectrograph f # :     2.9
        Optical Platform :     Concave Grating
        Spectral Range :     350 to 1050 nm
        Spectral Resolution :     1 nm
        Slit Options :     Micrometer Controlled Variable Slit
        Input Fiber Connector :     SMA 905 [ FC (Optional) ]
        Input Fiber NA :     0.22
        Stray Light :     < 0.06 % @ 532nm (< 0.1% overall)
        Detector :     Toshiba TCD1304AP Linear CCD Array
        Pixel Number :     3648
        Pixel Size :     8 x 200 μm
        Pixel Well Depth :     100,000 electron
        Signal-to-noise Ratio :     1,000:1 (at full scale)
        A / D Resolution :     16 bit
        Integration Time :     0.1 to 6,500 ms
        Frame Rate :     up to 138 fps
        Trigger Input :     Yes, Optional
        PC interface :     USB 2.0
        Software :     Spectra ANALYTE Includes DLL libraries and SDKs for easy custom application development
Source Specifications


        Lamp :     Quartz Halogen
        Wattage :     50 W
        Wavelength range :     340 - 2700 nm
        Powersupply :     Constant Current SMPS
        Supply :     Fixed
        Lamp Housing :     Forced Air Cooled Type
        Optics :     Concave metallic mirror
        Construction :     Aluminium black Anodized


Fiber Specifications

        Wavelength Range :     190 - 1600 nm
        Connector :     SMA
        Numerical Aperture NA :     0.22
        Acceptance Angle :     25.4°
        Operating Temperature :     - 40 to +100°C
        Length :     1.5 m

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