Management of Photometry at the National Center for Measurement and Calibration comprises three main laboratories: the Optical Radiation Laboratory, the Light Measurement Laboratory, and the Spectroscopic Analysis Laboratory. This management dedicates its efforts to establish and maintain the primary national standards for light measurement, including the primary standard for illuminance, which is one of the seven base units in the International System of Units, known as the candela (cd).
Establishing the Optical Radiation Laboratory is an integral part of the efforts to achieve and maintain Saudi national standards in the field of optical radiation measurements. This laboratory is responsible for calibrating all optical detection devices, including semiconductor detectors, laser power meters, optical filters, and wavelength measurement devices for spectroscopic analysis, in addition to radiometric spectroscopic analysis devices (Spectroradiometers). The laboratory possesses all the necessary capabilities for calibration and measurement with the highest levels of precision and reliability, as follows:
Calibration and Measurement Capabilities:
The Light Measurement Laboratory aims to achieve and maintain Saudi national standards in photometric measurements, including visible radiation measurements. The laboratory is responsible for calibrating all devices associated with this field, such as reference sources for illuminance, luminous flux, and luminance, as well as devices for measuring color temperatures, colors, color differences, and illuminance intensity meters such as luxmeters and light meters. The laboratory has the capability to perform calibration and measurement at the highest levels of precision and reliability, as follows:
Calibration and Measurement Capabilities:
The laboratory is dedicated to establishing and maintaining national, reference, and operative standards for photometric measurements, such as reflectance, transmittance, absorbance, and opacity. Additionally, the laboratory aims to achieve wavelength standards for spectrophotometric analysis devices. The laboratory calibrates high-precision measurement devices for these physical quantities, including spectrophotometers, optical filters, reflective, transmissive, and semi-transmissive light samples. Moreover, the laboratory provides calibration services, technical and scientific consultancy, and training in its field, both within and outside the laboratory. The laboratory is equipped to conduct calibration and measurement at the highest levels of precision and reliability, as follows:
Calibration and Measurement Capabilities: