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Radiometer Applications

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    Instruments and analyzers for measure spectral irradiance of sun simulator

    Sun simulators are available in different classes indicating the performance characteristics by the combination of three letters (A,B or C) (according to IEC 60904, JIS 8912 and ASTM E 927-05). Each letter represents respectively the spectral match with the solar spectrum (1000 W/m2, AM 1.5), uniformity of the light field and temporary stability. Class AAA are considered as most accurate and have an ideal spectral match between 0.75 and 1.25, max. 2.0% non-uniformity and 0.5% nonstability according to the IEC standard. The ideal spectral match is divided in spectral bands. Those represent a certain energy quanta of the total spectrum allowing a 25% variance in that particular range.

    By EKO Instruments based in San Jose, CALIFORNIA (USA).

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    Instruments and analyzers for spectral DNI measurements

    Where the pyrheliometer is most suitable to quantify the total DNI of the solar spectrum. The spectroradiometer gives details about the energy distribution which is important for PV or CPV cell research. The solar spectrum wil change with the angle of incidence and its path through the atmosphere. Photons wil be reflected, scattered or absorbed. Big absorbers of infrared irradiance are water vapor, carbon dioxide, and ozon.

    By EKO Instruments based in San Jose, CALIFORNIA (USA).

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    Instruments and analyzers for measuring spectral irradiance

    Spectral irradiance is the irradiance of a surface per unit frequency or wavelength. spectral irradiance of a wavelength spectrum is measured per watts per square metre per nanometre (W·m−2·nm−1). Spectroradiometers are devices designed to measure the spectral power distribution of a source. From the spectral power distribution, the radiometric, photometric, and colorimetric quantities of light can be determined in order to measure, characterize, and calibrate light sources for various applications. Spectroradiometers typically measures the spectral irradiance and spectral radiance. Spectroradiometers systems work without the need to be connected to a PC. This makes them highly portable while maintaining the accuracy of a spectrometer.

    By EKO Instruments based in San Jose, CALIFORNIA (USA).

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    Instruments and analyzers for spectral irradiance portable solutions

    Reflection and transmission measurements on materials, vegetation, water or atmosphere give valuable information about biological, physical and chemical processes. Processes driven by solar radiation, in particular bands of the spectrum through the so called action spectra, can be analysed or quantified with a sensor senitive in the particular spectral band. The MS-720 portable spectroradiometer gives total freedom to be used in different applications and range of the spectrum between 350 - 1050 nm.

    By EKO Instruments based in San Jose, CALIFORNIA (USA).

  • Agriculture Analyses and Soil Analyses

    From assessing soil fertility to crop nutrients analysis, ASD Inc. has the expertise in agriculture and soil analysis to ensure your success. Researchers rely on ASD spectrometers and spectroradiometers because they are portable, provide non-destructive measurement, and offer rapid results.

    By ASD Inc., a PANalytical Company based in Boulder, COLORADO (USA).

  • Combined photo-radiometric probe for Museum & Metal Industry

    The combined photo-radiometric probe LP471P-A measures the two parameters of principal interest in the field of lighting, namely the ILLUMINATION (lux) and UVA IRRADIANCE (W/m2). The probe is composed by a luxmeter and an UVA radiometer. The signals of the two sensors are read and processed at the same time to visualize the relation between the two quantities expressed in µW/lumen. The two sensors are equipped with a diffuser for the correct measure according to the cosine law. The probe LP471P-A is particularly useful when the simultaneous measurement of illuminance and UVA irradiance is required. For example, in museum environment when it is necessary to evaluate the UVA radiation level in the lamps in order to avoid damage to paintings or wood or any other historical art objects(CIE 157) and another area of interest is the Non Destructive Testing (NDT) that employ penetrating liquids, used primarily in the fields of mechanics and aerospace(ISO 3059:2001)

    By Delta OHM S.r.L. based in Caselle di Selvazzano, ITALY.

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