What is a diffusometer?

A diffusometer is a device that measures the diffuse solar irradiance resulting from scattering of sunlight in earth’s atmosphere. The SI units of irradiance are watts per square metre (W/m²). Although diffusometers may be used for climatological research and meteorological monitoring, the increasing demand for solar energy has led to a greater interest in diffusometers for PV monitoring.

Diffusometers from Hukx

The SRD100 industrial diffusometer is designed to accurately measure diffuse irradiance. When combined with a pyranometer like the SR300-D1, users can separate the direct and diffuse components of solar radiation. SRD100 will typically be part of an IEC 61724-1 Class A PV performance monitoring system.

The SRD100 diffusometer is an instrument, tailored for use in PV monitoring systems, but is also well-suited for other applications such as general meteorological monitoring and building physics.