spectroradiometer

spectroradiometer

Spectroradiometers are instruments designed to measure the spectral power distributions of illuminants. They operate almost like spectroradiometer in the visible region. They are commonly used to evaluate and categorize lighting for sales by the manufacturer, or for the customers to confirm the lamp they decided to purchase is within their specifications.

Clients ask how a spectrometer and a spectroradiometer differ. A spectrometer measures relative intensity, while a spectroradiometer is calibrated to measure quantitative or absolute intensity at different wavelengths of the electromagnetic spectrum.

Apogee Instruments spectroradiometer are reasonably priced and designed with ease-of-use and portability in mind. All models come in a complete package including spectroradiometer, 2 meter fiber-optic cable, cosine-corrected detector, USB cable, and a USB drive containing interface software, calibration files, and tutorial videos. Power to the spectroradiometer is provided through the USB cable, and the interface software/drivers are compatible with all 32-bit and 64-bit Windows operating systems.

NIST traceable calibration files are included with all models allowing for measurements in the ultraviolet, visible, and near-infrared ranging from 300 to 1000 nm (model specific). Beyond calibrated irradiance and illuminance measurements, any model may be used to accurately measure wavelength emissions, reflectance, transmission, and absorption.

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