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radiometer Applications

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    Instruments and analyzers for DNI measurements at CPV sites

    Concentrating Photovoltaics (CPV) is driven by only direct solar radiation. To quantify the energy efficiency of a CPV system the total DNI and direct spectral solar irradiance, called spectral DNI, can be measured. Solar sensors are crucial during the phase of development and operation. Even at high sunny places, the composition and variability of the atmosphere strongly affects the solar spectral distribution and will impact on the energy yield and the decision on which cell type to use. The pyrheliometer in combination with the spectral radiometer for DNI measurements accurately pinpoint the solar prospect for certain sites, the spectral impact on the performance and efficiency of the module.

    By EKO Instruments based in San Jose, CALIFORNIA (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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