Integrating Sphere - Question and Answer #4

The contract seeks the procurement of two identical integrating spheres equipped with all necessary supporting components to enable traceable spectroradiometric measurements across the visible-near infrared to shortwave infrared spectrum. These systems must deliver an absolute, uniform spectral radiance output that is directly traceable to national metrology standards such as those maintained by the National Research Council of Canada or NIST in the United States. The design must support precise and repeatable calibration under varying environmental conditions, including full sun, cloud cover, day, and night scenarios, requiring the ability to dynamically adjust output levels to simulate real-world illumination conditions. The integrating spheres and associated hardware must be engineered for robustness, ease of use, and compatibility with existing measurement protocols. All components must ensure metrological integrity and stability over time, with clear documentation and calibration procedures to maintain traceability. The solicitation is issued by the National Research Council of Canada under reference number 26-58044 Q&A #4, with responses due by July 23, 2026. Primary contact for inquiries is Katie Homuth, Contracting Authority, reachable via email or phone provided in the solicitation details. The place of performance is located in Canada, and the procurement is conducted under federal government procurement guidelines.