How to prepare a spectroradiometer for calibration

Overview

Reliable spectroradiometric measurements depend on the complete optical measurement chain, including detector, entrance optics, wavelength scale, spectral responsivity and the intended application. The purpose of this article is to help engineers prepare instruments for traceable calibration and interpret calibration certificates correctly.

Key recommendations

• Identify the exact model and optical configuration.
• Define the required measurands before requesting calibration.
• Review uncertainty requirements against the application.
• Keep previous certificates with the instrument history.